Mercedes Benz A-Class (2021) Owner’s Manual

Digital – in the vehicleVehicle document walletDigital – on the InternetDigital – as an app

Familiarize yourself with the con‐ tents of the Operator's Manual directly via the vehicle's multi‐ media system (menu item "Vehi‐ cle information"). Start with the quick guide or broaden your knowledge with practical tips.

Here you can find comprehen‐ sive information about operating your vehicle and about services and guarantees in printed form.

You can find the Operator's Man‐ ual on the Mercedes-Benz home‐ page.

The Mercedes-Benz Guides app is available free-of-charge in familiar app stores.

É17758433109ËÍ

1775843310

Apple®iOS Android

Order no. P177 0651 13 Part no. 177 584 33 10 Edition B 2021

A-Class

Operator's Manual

Mercedes-Benz

Mercedes-Benz A-Class

Publication details

Internet

Further information about Mercedes-Benz vehi‐ cles and about Mercedes‑Benz AG can be found on the following websites:

https://www.mbusa.com (USA only)

https://www.mercedes-benz.ca (Canada only)

Documentation team

Mercedes‑Benz AG: Not to be reprinted, trans‐ lated or otherwise reproduced, in whole or in part, without written permission from Mercedes‑Benz AG.

Vehicle manufacturer

Mercedes‑Benz AG

Mercedesstraße 12 0

70372 Stuttgart

Germany

Front passenger airbag warning

Airbag warning sticker for USA and Canada

WARNING Risk of injury or death if the co-driver airbag is enabled

If the co-driver airbag is enabled, a child on the co-driver seat may be struck by the codriver airbag during an accident.

NEVER use a rearward-facing child restraint system on a seat with an ENABLED FRONT AIRBAG; DEATH or SERIOUS INJURY to the CHILD can occur.

Observe the chapter "Children in the vehicle".

As at 09.04.20

Thank you for purchasing a Mercedes-Benz

Before you first drive off, read this Operator's Manual carefully and familiarize yourself with your vehicle. For your own safety and a longer operating lifespan of the vehicle, follow the instructions and warning notices in this Opera‐ tor's Manual. Disregarding them may lead to damage to the vehicle or injury to people.

Damage to the vehicle resulting from the disre‐ gard of the instructions is not covered by the Mercedes-Benz Limited Warranty.

The standard equipment and product description of your vehicle may vary and depends on the fol‐ lowing factors:

Model

Order

National version

Availability

Mercedes-Benz reserves the right to introduce changes in the following areas:

Design

Equipment

Technical features

The equipment in your vehicle may therefore dif‐ fer from that shown in the descriptions and illus‐ trations.

The following documents are integral parts of the vehicle:

Digital Operator's Manual

Printed Operator's Manual

Maintenance Booklet

Equipment-dependent Supplements

Keep these documents in the vehicle at all times. If you sell the vehicle, always pass all of the documents on to the new owner.

Mercedes-Benz USA, LLC

Mercedes-Benz Canada, Inc.

A Daimler Company

1775843310

Symbols ........................................................ 5

At a glance .................................................... 6

Cockpit ........................................................... 6

Indicator and warning lamps (standard) ........ 10

Indicator and warning lamps (Wide‐

screen Cockpit) ............................................ 12

Overhead control panel ................................ 14

Door operating unit and seat adjustment ..... 16

Emergencies and breakdowns ...................... 18

Digital Operator's Manual ......................... 20

Calling up the Digital Operator's Manual ...... 20

General notes ............................................. 22

Protecting the environment .......................... 22

Genuine Mercedes-Benz parts ......................22

Operator's Manual ........................................23

Service and vehicle operation ....................... 24

Operating safety ...........................................25

Declaration of conformity for wireless

vehicle components .....................................26

Diagnostics connection ................................ 27

Qualified specialist workshop ....................... 28

Correct use of the vehicle ............................28

Notes for persons with electronic medi‐

cal aids ......................................................... 28

Problems with your vehicle ........................... 29

Reporting safety defects ...............................29

Limited Warranty .......................................... 30

QR code for rescue card ...............................30

Data storage .................................................30

Occupant safety ......................................... 36

Restraint system ...........................................36

Seat belts ..................................................... 38

Airbags ......................................................... 42

PRE-SAFE®system ....................................... 50

Automatic measures after an accident ......... 51

Safely transporting children in the vehi‐

cle ................................................................. 51

Notes on pets in the vehicle .........................65

Opening and closing .................................. 66

SmartKey ...................................................... 66

Doors ............................................................ 70

Trunk ............................................................ 73

Side windows ............................................... 77

Sliding sunroof ............................................. 80

Anti-theft protection .....................................84

Seats and stowing ...................................... 87

Notes on the correct driver's seat posi‐

tion ............................................................... 87

Seats ............................................................ 88

Steering wheel ..............................................95

Easy entry and exit feature ...........................96

Memory function .......................................... 97

Stowage areas .............................................. 98

Sockets ....................................................... 105

Wireless charging of the mobile phone and connection with the exterior antenna .. 105

Installing/removing the floor mats .............107

Light and visibility ................................... 109

Exterior lighting .......................................... 109

Interior lighting ............................................ 114

Windshield wiper and windshield washer

system ........................................................ 11 5

Mirrors ........................................................ 117

Contents

Climate control ......................................... 121

Overview of climate control systems ..........121

Operating the climate control system ......... 121

Driving and parking ................................. 125

Driving ........................................................ 125

DYNAMIC SELECT switch ............................134

Automatic transmission .............................. 137

Function of the 4MATIC ...............................141

Refueling .................................................... 14 2

Parking .......................................................144

Driving and driving safety systems .............. 151

Vehicle towing instructions .........................200

Instrument Display and on-board

computer .................................................. 201

Notes on the Instrument Display and on-

board computer .......................................... 201

Instrument display overview .......................202

Overview of the buttons on the steering

wheel ..........................................................203

Operating the on-board computer .............. 203

Overview of what is shown on the multi‐

function display .......................................... 205

Head-up Display ......................................... 205

MBUX multimedia system ...................... 208

Overview and operation .............................. 208

System settings .......................................... 217

Navigation ................................................... 221

Telephone ...................................................226

Mercedes me and apps .............................. 230

Mercedes-Benz emergency call system ...... 238

Radio & media ............................................ 242

Sound settings ............................................ 249

Maintenance and care ............................. 250

ASSYST PLUS service interval display ........ 250

Engine compartment .................................. 251

Checking the brakepad thickness ...............257

Cleaning and care .......................................257

Breakdown assistance ............................ 265

Emergency .................................................. 265

Flat tire ....................................................... 266

Battery (vehicle) .......................................... 273

Tow starting or towing away ....................... 278

Electrical fuses ........................................... 283

Wheels and tires ...................................... 287

Notes on noise or unusual handling char‐

acteristics ...................................................287

Notes on regularly inspecting wheels and

tires ............................................................ 287

Notes on snow chains ................................ 288

Tire pressure .............................................. 288

Loading the vehicle .................................... 295

Tire labeling ................................................ 299

Definition of terms for tires and loading ..... 304

Changing a wheel ....................................... 307

Emergency spare wheel .............................. 317

Technical data .......................................... 320

Notes on technical data .............................. 320

Vehicle electronics .....................................320

Radio operating permits for vehicle com‐

ponents ...................................................... 322

Vehicle identification plate, VIN and

engine number overview ............................ 322

Operating fluids .......................................... 323

Vehicle data ................................................ 330

Contents

Display messages and warning/indi‐

cator lamps .............................................. 332

Display messages .......................................332

Warning and indicator lamps ...................... 379

Index ......................................................... 394

Contents

In this Operator's Manual, you will find the fol‐ lowing symbols:

DANGER Danger due to not observing the warning notices

Warning notices draw your attention to haz‐ ards that may endanger your health or life, or the health or life of others.

Observe the warning notices.

ENVIRONMENTAL NOTE Environmental damage due to failure to observe envi‐ ronmental notes

Environmental notes include information on environmentally responsible behavior or envi‐ ronmentally responsible disposal.

Observe environmental notes.

NOTE Damage to property due to failure to observe notes on material damage

Notes on material damage inform you of risks which may lead to your vehicle being damaged.

Observe notes on material damage.

These symbols indicate useful instructions or further information that could be helpful to you.

Instruction

(/ page)Further information on a topic

Display

Information on the multifunction dis‐ play/media display

Highest menu level, which is to be selected in the multimedia system

Relevant submenus, which are to be selected in the multimedia system

*Indicates a cause

Symbols

Left-hand-drive vehicles

At a glance – Cockpit

Steering wheel gearshift paddles

→

140

Combination switch

→

110

Instrument display

→

202

DIRECT SELECT lever

→

137

Start/stop button

→

126

è ECO start/stop function

→

133

Media display

→

208

Climate control systems

→

121

£ Hazard warning light system

→

111

PASSENGER AIR BAG indicator lamps

→

Glove box

→

100

Storage compartment

→

100

Cup holder

8 Controller for volume and switching sound on/off

→

208

Ü Switches the MBUX multimedia system on/off

→

208

z Calls up navigation

→

210

| Calls up radio or media

→

210

% Calls up the telephone

→

210

ß Calls up favorites

→

210

y Calls up vehicle functions

→

210

c Active Parking Assist

→

196

DYNAMIC SELECT switch

→

135

Touchpad

→

210

Control panel for the MBUX multimedia sys‐ tem

→

203

Adjusts the steering wheel

→

ý Switches the steering wheel heater on/off

→

Control panel:

On-board computer

→

203

Cruise control

→

161

Active Distance Assist DISTRONIC

→

164

At a glance – Cockpit

Diagnostics connection

→

Opens the hood

→

251

! Electric parking brake

→

148

Light switch

→

109

At a glance – Cockpit

Instrument Display (standard)

At a glance – Indicator and warning lamps (standard)

! ABS

→

390

#! Tu rn signal lights

→

110

h Tire pressure monitoring system

→

392

# Electrical malfunction

→

382

L Distance warning

→

389

é Recuperative Brake System, USA only

→

386

J Brakes (yellow), Canada only

→

386

Brakes (red)

→

386

$ USA only

J Canada only

! Electric parking brake (yellow)

→

386

Electric parking brake (red)

→

386

F USA only

! Canada only

; Check Engine

→

382

R Rear fog lamp

→

110

K High beam

→

110

L Low beam

→

109

T Parking lamps

→

109

å ESP®OFF

→

390

÷ ESP

→

390

6 Restraint system

→

380

Fuel level

→

202

æ Reserve fuel with fuel filler flap location indicator

→

382

Ù Power steering

→

381

ü Seat belt

→

380

At a glance – Indicator and warning lamps (standard)

Widescreen Cockpit Instrument Display

At a glance – Indicator and warning lamps (Widescreen Cockpit)

#! Tu rn signal lights

→

110

6 Restraint system

→

380

å ESP®OFF

→

390

÷ ESP

→

390

R Rear fog lamp

→

110

K High beam

→

110

L Low beam

→

109

T Parking lamps

→

109

ÿ Coolant temperature

→

382

Coolant temperature display

→

202

! Electric parking brake (yellow)

→

386

é Recuperative Brake System, USA only

→

386

J Brakes (yellow), Canada only

→

386

# Electrical malfunction

→

382

L Distance warning

→

389

! ABS

→

390

Ù Power steering

→

381

h Tire pressure monitoring system

→

392

8 Reserve fuel with fuel filler flap location indicator

→

382

Fuel level

→

202

Electric parking brake (red)

→

386

F USA only

! Canada only

Brakes (red)

→

386

$ USA only

J Canada only

ü Seat belt

→

380

; Check Engine

→

382

ä Indicator lamp inoperative

At a glance – Indicator and warning lamps (Widescreen Cockpit)

At a glance – Overhead control panel

Sun visors

p Switches the left-hand reading lamp on/off

→

114

| Switches automatic interior lighting con‐ trol on/off

→

114

c Switches the front interior lighting on/off

→

114

u Switches the rear interior lighting on/off

→

114

p Switches the right-hand reading lamp on/off

→

114

; me button

→

232

G SOS button

→

232

3 Opens/closes the panorama roof with power tilt/sliding panel

→

3 Opens/closes the roller sunblind

→

Inside rearview mirror

→

118

At a glance – Overhead control panel

At a glance – Door operating unit and seat adjustment

Operates the memory function

→

Adjusts the seats electrically

→

w Switches the seat heating on/off

→

s Switches the seat ventilation on/off

→

ßÜ Locks/unlocks the vehicle

→

Opens the door

→

p Opens the trunk lid

→

Í Operates the outside mirrors

→

117

W Opens/closes the right side window

→

W Opens/closes the rear right side win‐ dow

→

Child safety lock for the rear side windows

→

W Opens/closes the rear left side window

→

W Opens/closes the left side window

→

Adjusts the head restraints

→

Configures the seat settings

→

Adjusts the seat backrest inclination

→

Adjusts the seat height

→

Adjusts the seat cushion inclination

→

Sets the seat fore-and-aft position

→

Adjusts the seat cushion length

→

At a glance – Door operating unit and seat adjustment

At a glance – Emergencies and breakdowns

Safety vests

→

265

; me button

→

232

G SOS button

→

232

£ Hazard warning light system

→

111

Glove box

Starting assistance

→

276

Checking and refilling operating fluids

→

323

Tow-starting or towing away

→

279

Flat tire

→

266

B-pillar with:

QR code for accessing the rescue card

→

Tow-starting or towing away

→

279

TIREFIT kit

→

268

First-aid kit (soft sided)

→

266

Fuel filler flap with:

information label on fuel type

→

142

Information label on tire pressure

→

290

QR code for accessing the rescue card

→

Warning triangle

→

265

At a glance – Emergencies and breakdowns

Calling up the Digital Operator's Manual

Multimedia system:

The Digital Operator's Manual describes the functions and operation of the vehicle and the multimedia system.

Select one of the following menu items in the Digital Operator's Manual:

Search: search for keywords in order to find

quick answers to questions about the opera‐ tion of the vehicle.

Quick start: here is where you find the first

steps towards setting up your vehicle.

Tips: find information that prepares you for

certain everyday situations with your vehicle.

Animations: watch animations of the vehicle

functions.

Messages: receive additional information

about the messages in the Instrument Dis‐ play.

Bookmarks: gain access to your personally

saved bookmarks.

Language: select the language for the Digital

Operator's Manual.

Back

Adds bookmarks

Picture

Contents section

Directions of movement of contents section

Some sections in the Digital Operator's Manual, e.g. warning notes, can be expanded and col‐ lapsed.

Additional methods of calling up the Digital Operator's Manual:

Direct access: open the required content in the

Digital Operator's Manual by pressing and hold‐

Digital Operator's Manual

ing an entry on the tab bar in the multimedia system:

Instrument Display: call up brief information as display messages in the instrument cluster

Voice Control System: call up via the voice control system

For safety reasons, the Digital Operator's Man‐ ual is deactivated while driving.

Digital Operator's Manual

Protecting the environment

ENVIRONMENTAL NOTE Environmental damage due to operating conditions and personal driving style

The pollutant emission of the vehicle is directly related to the way you operate the vehicle.

Operate your vehicle in an environmentally responsible manner to help protect the envi‐ ronment. Please observe the following rec‐ ommendations on operating conditions and personal driving style.

Operating conditions:

Make sure that the tire pressure is cor‐ rect.

Do not carry any unnecessary weight (e.g. roof luggage racks once you no longer need them).

Adhere to the service intervals. A regularly serviced vehicle will contrib‐ ute to environmental protection.

Always have maintenance work carried out at a qualified specialist workshop.

Personal driving style:

Do not depress the accelerator pedal when starting the engine.

Do not warm up the engine while the vehicle is stationary.

Drive carefully and maintain a suitable distance from the vehicle in front.

Avoid frequent, sudden acceleration and braking.

Change gear in good time and use each gear only up to Ô of its maximum engine speed.

Switch off the engine in stationary traf‐ fic, e.g. by using the ECO start/stop function.

Drive fuel-efficiently. Observe the ECO display for a fuel-efficient driving style.

Environmental issues and recommendations

It is recommended that you re-use or recycle materials instead of just disposing of them.

The relevant environmental guidelines and regu‐ lations serve to protect the environment and must be strictly observed.

Genuine Mercedes-Benz parts

ENVIRONMENTAL NOTE Environmental damage due to not using recycled recon‐ ditioned components

Mercedes‑Benz AG offers recycled recondi‐ tioned components and parts with the same quality as new parts. The same entitlement from the Limited Warranty is valid as for new parts.

Use recycled reconditioned compo‐ nents and parts from Mercedes‑Benz AG.

General notes

NOTE Impairment of the operating effi‐ ciency of the restraint systems from installing accessory parts or from repairs or welding

Airbags and Emergency Tensioning Devices, as well as control units and sensors for the restraint systems, may be installed in the fol‐ lowing areas of your vehicle:

Doors

Door pillars

Door sills

Seats

Cockpit

Instrument cluster

Center console

Lateral roof frame

Do not install accessory parts such as audio systems in these areas.

Do not carry out repairs or welding.

Have aftermarket installation of acces‐ sories carried out at a qualified special‐ ist workshop.

You could jeopardize the operating safety of your vehicle if you use parts, tires and wheels as well as accessories relevant to safety which have not been approved by Mercedes-Benz. Safety-rele‐ vant systems, e.g. the brake system, may mal‐ function. Only use Mercedes-Benz GenuineParts or parts of equal quality. Only use tires, wheels and accessories that have been specifically approved for your vehicle model.

Mercedes-Benz GenuineParts are subject to strict quality inspections. Each part has been specially developed, manufactured or selected for Mercedes-Benz vehicles and adapted to them. Therefore, only Mercedes-Benz Genuine‐ Parts should be used.

More than 300,000 different Mercedes-Benz GenuineParts are available for Mercedes-Benz models.

All authorized Mercedes-Benz Centers maintain a supply of Mercedes-Benz GenuineParts for

necessary service and repair work. In addition, strategically located parts delivery centers pro‐ vide for quick and reliable parts service.

Always specify the vehicle identification number (VIN) (/ page 322) when ordering MercedesBenz GenuineParts.

Operator's Manual

This Operator's Manual describes all models and all standard and optional equipment available for your vehicle at the time of this Operator's Man‐ ual going to press. Country-specific differences are possible. Note that your vehicle may not be equipped with all features described. This is also the case for systems and functions relevant to safety. Therefore, the equipment on your vehicle may differ from that in the descriptions and illus‐ trations.

The original purchase agreement for your vehicle contains a list of all of the systems in your vehi‐ cle.

Should you have any questions concerning equipment and operation, please consult an authorized Mercedes-Benz Center.

General notes

The Operator's Manual and Maintenance Booklet are important documents and should be kept in the vehicle.

Service and vehicle operation

Vehicle operation outside the USA or Canada

When you are abroad with your vehicle, observe the following points:

Service points or replacement parts may not be available immediately.

Unleaded fuel may not be available for vehi‐ cles with a catalytic converter. Leaded fuel may cause damage to the catalytic converter.

The fuel may have an extremely low octane number. Unsuitable fuel can cause engine damage.

Some Mercedes-Benz models are available in Europe through our European Delivery Program. For more information, please consult an author‐ ized Mercedes‑Benz service center, or write to one of the following address:

In the USA:

Mercedes-Benz USA, LLC

European Delivery Department

One Mercedes-Benz Drive

Sandy Springs, GA 30328

In Canada:

Mercedes-Benz Canada, Inc.

European Delivery Department

98 Vanderhoof Avenue

Toronto, Ontario M4G 4C9

Maintenance

Your customer advisor confirms the service in the service report.

Roadside Assistance

The Mercedes-Benz Roadside Assistance Pro‐ gram offers technical help in the case of a breakdown. Yo ur calls to the toll-free Roadside Assistance Hotline are answered by our agents 24 hours a day, 365 days a year.

1-800-FOR-MERCedes (1-800-367-6372) (USA)

1-800-387-0100 (Canada)

You can find further information in the Mercedes-Benz Roadside Assistance Program brochure (USA) or the "Roadside Assistance" section in the Service and Warranty booklet (Canada). Yo u will find both in the vehicle docu‐ ment wallet.

Change of address or change of ownership

In the event of a change of address, please send us the "Notification of address change" in the Service and Guarantee booklet or simply call the Mercedes-Benz Customer Assistance Center (USA) on the hotline number 1-800-FOR-MERCedes (1-800-367-6372) or Cus‐ tomer Service (Canada) on 1-800-387-0100. We can then reach you in a timely fashion, if neces‐ sary.

If you sell your Mercedes, please leave all litera‐ ture in the vehicle so that it is available to the next owner. If you have purchased a used vehi‐ cle, please send us the "Notice of Purchase of Used Car" in the Service and Guarantee booklet or simply call the Mercedes-Benz Customer

General notes

Assistance Center (USA) at the hotline number 1-800-FOR-MERCedes (1-800-367-6372) or Cus‐ tomer Service (Canada) at 1-800-387-0100.

Possible danger due to substances hazard‐ ous to health

In compliance with Proposition 65 ("Prop65"), the following detachable label has been added to each vehicle sold in California:

Operating safety

WARNING Risk of accident due to mal‐ functions or system failures

To avoid malfunctions or system failures:

Always have the prescribed service and maintenance work as well any required repairs carried out at a qualified spe‐ cialist workshop.

WARNING Risk of accident or injury due to incorrect modifications on electronic component parts

Modification of electronic components, their software or wiring could impair their function and/or the function of other networked com‐ ponent parts or safety-relevant systems.

This can endanger the operating safety of the vehicle.

Never tamper with the wiring and elec‐ tronic component parts or their soft‐ ware.

You should have all work on electrical and electronic components carried out at a qualified specialist workshop.

Observe the "On-board electronics" section in "Technical data".

WARNING Risk of fire due to flammable materials on hot parts of the exhaust system

Flammable material such as leaves, grass or twigs may ignite if they come into contact with hot parts of the exhaust system.

When driving on unpaved roads or offroad, regularly check the vehicle under‐ side.

Remove trapped plants or other flam‐ mable material, in particular.

If there is damage, consult a qualified specialist workshop immediately.

General notes

NOTE Damage to the vehicle due to driv‐ ing too fast and due to impacts to the vehicle underbody or suspension compo‐ nents

In the following situations, in particular, there is a risk of damage to the vehicle:

The vehicle becomes grounded, e.g. on a high curb or an unpaved road

The vehicle is driven too fast over an obstacle, e.g. a curb, speed bump or pot‐ hole

A heavy object strikes the underbody or suspension components

In situations such as these, damage to the body, underbody, suspension components, wheels or tires may not be visible. Compo‐ nents damaged in this way can unexpectedly fail or, in the case of an accident, may no lon‐ ger absorb the resulting force as intended.

If the underbody paneling is damaged, flam‐ mable materials such as leaves, grass or twigs can collect between the underbody and

the underbody paneling. These materials may ignite if they come into contact with hot parts of the exhaust system.

Have the vehicle checked and repaired immediately at a qualified specialist workshop.

If driving safety is impaired while con‐ tinuing your journey, pull over and stop the vehicle immediately, while paying attention to road and traffic conditions, and contact a qualified specialist work‐ shop.

Declaration of conformity for wireless vehi‐ cle components

USA: "Radio based devices of this vehicle com‐

ply with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) These devices may not cause harmful interference, and

2) These devices must accept any interference received, including interference that may cause undesired operation. Changes or modifications

not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment."

Canada: "This vehicle contains license-exempt transmitter(s)/receiver(s) that comply with Inno‐ vation, Science and Economic Development Can‐ ada’s RSS(s). Operation is subject to the follow‐ ing two conditions: (1) These devices may not cause interference, and (2) These devices must accept any interference, including interference that may cause undesired operation of the device."

USA: "Wireless charging system for mobile devi‐ ces (model: WMI2 Wireless Mobile Interface): This device complies with Part 18 of the FCC Rules."

The name and address of the responsible party is:

peiker acustic GmbH

Max-Planck-Str. 28-32

61381 Friedrichsdorf

Germany

General notes

Diagnostics connection

The diagnostics connection is a technical inter‐ face in the vehicle. It is used, for example, within the scope of repair and maintenance work or for reading out vehicle data by a specialist work‐ shop. Diagnostic devices should therefore only be connected by a qualified specialist workshop.

WARNING Risk of accident due to con‐ necting devices to the diagnostics con‐ nection

If you connect devices to the diagnostics connection of the vehicle, the function of vehicle systems and operating safety may be impaired.

For safety reasons, we recommend that you only use and connect products approved by your authorized MercedesBenz Center.

WARNING Risk of accident due to objects in the driver's footwell

Objects in the driver's footwell may impede pedal travel or block a depressed pedal.

This jeopardizes the operating and road safety of the vehicle.

Stow all objects in the vehicle securely so that they cannot get into the driver's footwell.

Always install the floor mats securely and as prescribed in order to ensure that there is always sufficient room for the pedals.

Do not use loose floor mats and do not place floor mats on top of one another.

NOTE Battery discharging from using devices connected to the diagnostics connection

Using devices at the diagnostics connection drains the battery.

Check the charge level of the battery.

If the charge level is low, charge the battery, e.g. by driving a considerable distance.

Connecting and using another device with the diagnostics connection can have the following effects:

Malfunctions in the vehicle system

Permanent damage to vehicle components

General notes

Please refer to the warranty terms and condi‐ tions for this matter.

Moreover, connecting equipment to the diagnos‐ tics connection can lead to emissions monitor‐ ing information being reset, for example. This may lead to the vehicle failing to meet the requirements of the next emissions inspection during the main inspection.

Qualified specialist workshop

An authorized Mercedes-Benz Center is a quali‐ fied specialist workshop. It has the necessary special skills, tools and qualifications to cor‐ rectly carry out the work required on your vehi‐ cle. This particularly applies to safety-relevant works.

For the following, always have your vehicle checked at an authorized Mercedes-Benz Cen‐ ter:

Safety-relevant works

Service and maintenance work

Repair work

Modifications as well as installations and conversions

Work on electronic components

Mercedes‑Benz recommends a Mercedes‑Benz service center.

Correct use of the vehicle

If you remove any warning stickers, you or others could fail to recognize certain dangers. Leave warning stickers in position.

Observe the following information in particular when driving your vehicle:

the safety notes in this manual

technical data for the vehicle

traffic rules and regulations

laws and safety standards pertaining to motor vehicles

Notes for persons with electronic medical aids

Mercedes-Benz AG cannot, despite carefully developing vehicle systems, completely rule out the interaction of vehicle systems with electronic medical aids such as cardiac pacemakers.

In addition, there are components installed in the vehicle that, regardless of the operating sta‐ tus of the vehicle, can generate magnetic fields on a par with permanent magnets. These fields can be found, for example, in the area around the multimedia and sound system or also in the area of the seats, depending on the vehicle equipment.

For this reason, the following can occur in isola‐ ted cases, depending on the aids used:

Medical aids malfunctioning

Adverse health effects

Observe the notes and warnings of the manufac‐ turer of the medical aids; if in doubt, contact the device manufacturer and/or your doctor. If there is continuing uncertainty concerning the possi‐ bility of medical aids malfunctioning, Mercedes-

General notes

Benz AG recommends using only few electrical vehicle systems and/or maintaining a distance from the components.

Only have repairs and maintenance work in the area of the following components carried out by a qualified specialist workshop:

Vehicle components carrying live voltage

Transmission antenna

Multimedia system and sound system

If you have any queries or suggestions, consult a qualified specialist workshop.

Problems with your vehicle

If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immedi‐ ately to have the problem diagnosed and recti‐ fied. If the problem is not resolved to your satis‐ faction, please discuss the problem again with an authorized Mercedes-Benz Center or, if nec‐ essary, contact us at one of the following addresses:

In the USA:

Mercedes-Benz USA, LLC

Customer Assistance Center

One Mercedes-Benz Drive

Sandy Springs, GA 30328

In Canada:

Mercedes-Benz Canada, Inc.

Customer Relations Department

98 Vanderhoof Avenue

Toronto, Ontario M4G 4C9

Reporting safety defects

USA only:

The following text is published as required of manufacturers under Title 49, Code of U.S. Fed‐ eral Regulations, Part 575 pursuant to the "National Tr affic and Motor Vehicle Safety Act of 1966".

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the

National Highway Tr affic Safety Administration (NHTSA) in addition to notifying Mercedes-Benz USA, LLC.

If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer, or Mercedes-Benz USA, LLC.

To contact NHTSA, you may call the Vehicle Safety Hotline toll-free at 1-888-327-4236 (TTY: 1-800-424-9153); go to the https:// www.safercar.gov/; or write to: Administrator, NHTSA, 400 Seventh Street, SW., Washington, DC 20590,: USA.

You can also obtain other information about motor vehicle safety from: https:// www.safercar.gov

Canada only:

The following text is published as required of manufacturers under subsection 18.4 (4) of the Motor Vehicle Safety Regulations.

General notes

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform Trans‐ port Canada in addition to notifying MercedesBenz Canada Inc.

If Tr ansport Canada received similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, Transport Canada cannot become involved in individual problems between you, your dealer or Mercedes-Benz Canada Inc.

To contact Transport Canada, you may call the Defect Investigations and Recalls Division tollfree in Canada at 1-800-333-0510 or 819-994-3328in the Gatineau-Ottawa area or internationally; you may also go to the following websites for more information:

English: https://www.tc.gc.ca/recalls

French: https://www.tc.gc.ca/rappels

Limited Warranty

NOTE Damage to the vehicle arising from violation of these operating instruc‐ tions.

Damage to the vehicle can arise from viola‐ tion of these operating instructions.

This damage is not covered either by the Mercedes-Benz implied warranty or by the New‑ or Used-Vehicle Warranty.

Follow the instructions in these operat‐ ing instructions on proper operation of your vehicle as well as on possible vehi‐ cle damage.

QR code for rescue card

QR codes are attached in the fuel filler flap and on the opposite side on the B-pillar. In the event of an accident, rescue services can use the QR code to quickly find the appropriate rescue card for your vehicle. The current rescue card con‐ tains the most important information about your

vehicle in a compact form, e.g. the routing of the electric lines.

Further information can be obtained at https:// www.mercedes-benz.de/qr-code.

Data storage

Data processing in the vehicle

Electronic control units

Electronic control units are installed in your vehi‐ cle. Control units process data which, for exam‐ ple, they receive from vehicle sensors, generate themselves or exchange between themselves. Some control units are required for the safe operation of your vehicle, some assist you when driving, such as driver assistance systems, while others enable comfort or infotainment functions.

The following provides you with general informa‐ tion regarding data processing in the vehicle. Additional information regarding exactly which data in your vehicle are collected, saved and transmitted to third parties and for what pur‐ pose, can be found in the information directly related to the functional characteristics in ques‐

General notes

tion in their respective operating instructions. This information is also available on line and, depending on the vehicle equipment, digitally.

Personal data

Every vehicle is identified by a unique vehicle identification number. Depending on the coun‐ try, this vehicle identification number can be used by, for example, governmental authorities to determine the identity of the owner. There are other possibilities to use data collected from the vehicle to identify the owner or driver, such as the license plate number.

Therefore, data generated or processed by con‐ trol units may be attributable to a person or, under certain conditions, become attributable to a person. Depending on which vehicle data are available, it may be possible to make inferences about, for example, your driving behavior, your location, your route or your use patterns.

Legal requirements regarding the disclosure of data

If legally required to do so, manufacturers are, in individual cases, legally obliged to provide gov‐ ernmental entities, upon request and to the

extent required, data stored by the manufac‐ turer. For example, this may be the case during the investigation of a criminal offense.

Governmental entities are themselves, in individ‐ ual cases and within the applicable legal frame‐ work, authorized to read out data from the vehi‐ cle. In the case of an accident, information that can help with an investigation can, therefore, be taken from the airbag control unit, for example.

Operational data in the vehicle

This is data regarding the operation of the vehi‐ cle, which have been processed by control units.

This includes the following data, for example:

Vehicle status information such as the speed, longitudinal acceleration, lateral accelera‐ tion, number of wheel revolutions or the fas‐ tened seat belts display

Ambient conditions, such as temperature, rain sensor or distance sensor

Generally, the use of these data is temporary; they will not be stored beyond the period of operation and will only be processed within the vehicle itself. Control units often contain data

memories for vehicle keys, for example. Their use permits the temporary or permanent docu‐ mentation of technical information about the vehicle's operating state, component loads, maintenance requirements and technical events or malfunctions.

Depending on the vehicle equipment, the follow‐ ing data are stored:

Operating status of system components, such as fill levels, tire pressure or battery status

Malfunctions or faults in important system components, such as lights or brakes

System reactions in special driving situa‐ tions, such as airbag deployment or the inter‐ vention of stability control systems

Information on events leading to vehicle damage

In certain cases, it may be required to store data that would have otherwise been used only tem‐ porarily. This may be the case if the vehicle has detected a malfunction, for example.

General notes

If you use services, such as repair services and maintenance work, stored operational data as well as the vehicle identification number can be read out and used. They can be read out by service network employees, such as workshops and manufacturers or third parties, such as breakdown services. The same is true in the case of warranty claims and quality assurance measures.

In general, the read out is performed via the legally prescribed port for the diagnostics con‐ nection in the vehicle. The operational data that are read out document technical states of the vehicle or of individual components and assist in the diagnosis of malfunctions, compliance with warranty obligations and quality improvement. To that end, these data, in particular information about component loads, technical events, mal‐ functions and other faults may be transmitted along with the vehicle identification number to the manufacturer. Furthermore, the manufac‐ turer is subject to product liability. For this rea‐ son the manufacturer also uses operational data from the vehicle, for example, for recalls. These

data can also be used to examine the custom‐ er's warranty and guarantee claims.

Fault memories in the vehicle can be reset by a service outlet or at your request as part of repair or maintenance work.

Convenience and infotainment functions

You can store convenience settings and individ‐ ual settings in the vehicle and change or reset them at any time.

Depending on the vehicle equipment, this includes the following settings, for example:

Seat and steering wheel positions

Suspension and climate control settings

Individual settings, such as interior lighting

Depending on the selected equipment, you can import data into vehicle infotainment functions yourself.

Depending on the vehicle equipment, this includes the following data, for example:

Multimedia data, such as music, films or pho‐ tos for playback in an integrated multimedia system

Address book data for use in connection with an integrated hands-free system or an inte‐ grated navigation system

Entered navigation destinations

Data about the use of Internet services

These data for convenience and infotainment functions may be saved locally in the vehicle or they may be located on a device which you have connected to the vehicle, such as a smartphone, USB flash drive or MP3 player. If you have entered these data yourself, you can delete them at any time.

This data is transmitted from the vehicle to third parties only at your request. This applies, in par‐ ticular, when you use online services in accord‐ ance with the settings that you have selected.

Smartphone integration (e.g. Android Auto or Apple CarPlay)

If your vehicle is accordingly equipped, you can connect your smartphone or another mobile end device to the vehicle. You can then control them by means of the control elements integrated in the vehicle. Images and audio from the smart‐ phone can be output via the multimedia system.

General notes

Certain information is simultaneously transfer‐ red to your smartphone. Depending on the type and integration, this includes position data, the day/night mode and other general vehicle sta‐ tuses. For more information please consult the Operator's Manual of the vehicle/infotainment system.

This integration allows the use of selected smartphone apps, such as navigation or music player apps. There is no further interaction between the smartphone and the vehicle; in par‐ ticular, vehicle data is not directly accessible. The type of additional data processing is deter‐ mined by the provider of the app being used. Which settings you can make, if any, depends on the specific app and the operating system of your smartphone.

Online services

Wireless network connection

If your vehicle has a wireless network connec‐ tion, it enables data to be exchanged between your vehicle and additional systems. The wire‐ less network connection is made possible by the

vehicle's own transmitter and receiver or by a mobile end device that you have brought into the vehicle, for example, a smartphone. Online func‐ tions can be used via the wireless network con‐ nection. This includes online services and appli‐ cations/apps provided to you by the manufac‐ turer or by other providers.

Manufacturer's services

Regarding the manufacturer's online services, the individual functions are described by the manufacturer in a suitable place, for example, in the Operator's Manual or on the manufacturer's website, where the relevant data protection information is also given. Personal data may be used for the provision of online services. Data are exchanged via a secure connection, such as the manufacturer's designated IT systems. Any personal data which are collected, processed and used, other than for the provision of serv‐ ices, is done so exclusively on the basis of legal permission. This is the case, for example, for a legally prescribed emergency call system, a con‐ tractual agreement or when consent has been given.

You can have services and functions, some of which are subject to a fee, activated or deactiva‐ ted. This excludes legally prescribed functions and services, such as an emergency call system.

Third party services

If you use online services from other providers (third parties), these services are the responsi‐ bility of the provider in question and subject to that provider's data protection conditions and terms of use. As a general rule, the manufac‐ turer has no influence on the content exchanged.

For this reason, when services are provided by third parties, please ask the service provider in question for information about the type, extent and purpose of the collection and use of per‐ sonal data.

Data protection rights

Depending on your country or the equipment and range of functions of your vehicle as well as the services you use and the services on offer, you are entitled to different data protection rights. Further information on data protection

General notes

and your data protection rights can either be found on the manufacturer's website or you will receive this information as part of the various services and service offers. There you will also find the contact information for the manufac‐ turer and its data protection officers.

At a workshop, for example, with the support of a specialist and possibly for a fee, you can have data read out which is stored only locally in the vehicle.

MBUX multimedia system/Mercedes me connect

If the vehicle is equipped with the MBUX multi‐ media system or Mercedes me connect, addi‐ tional data about the vehicle's operation, the use of the vehicle in certain situations, and the loca‐ tion of the vehicle may be compiled by the MBUX multimedia system or Mercedes me con‐ nect.

For additional information, please refer to the "MBUX multimedia system" section and/or the Mercedes me connect Terms and Conditions.

Event data recorders

USA only:

This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR is to record, in certain crash or near crash-like sit‐ uations, such as an airbag deployment or hitting a road obstacle, data that will assist in under‐ standing how a vehicle's systems performed. The EDR is designed to record data related to vehicle dynamics and safety systems for a short period of time, typically 30 seconds or less.

The EDR in this vehicle is designed to record such data as:

How various systems in your vehicle were operating

Whether or not the driver and front passenger seat belts were buckled/fastened

How far (if at all) the driver was depressing the accelerator and/or brake pedal and

How fast the vehicle was traveling

This data can help provide a better understand‐ ing of the circumstances in which accidents and injuries occur. NOTE: EDR data is recorded by

your vehicle only if a non-trivial crash situation occurs; no data is recorded by the EDR under normal driving conditions and no personal data (e.g. name, gender, age and accident location) is recorded. However, other parties, such as law enforcement, could combine EDR data with the type of personally identifying data routinely acquired during a crash investigation.

To read data recorded by an EDR, special equip‐ ment is required, and access to the vehicle or the EDR is needed. In addition to the vehicle manufacturer, other parties that have the special equipment, such as law enforcement, can read the information by accessing the vehicle or the EDR.

EDR data may be used in civil and criminal mat‐ ters as a tool in accident reconstruction, acci‐ dent claims and vehicle safety. Since the Crash Data Retrieval (CDR) tool that is used to extract data from the EDR is commercially available, Mercedes-Benz USA, LLC ("MBUSA") expressly disclaims any and all liability arising from the extraction of this information by unauthorized Mercedes-Benz personnel.

General notes

MBUSA will not share EDR data with others with‐ out the consent of the vehicle owner or, if the vehicle is leased, without the consent of the les‐ see. Exceptions to this representation include responses to subpoenas by law enforcement; by federal, state or local government; in connection with or arising out of litigation involving MBUSA or its subsidiaries and affiliates; or, as required by law.

Warning: The EDR is a component of the Restraint System Module. Tampering with, alter‐ ing, modifying or removing the EDR component may result in a malfunction of the Restraint Sys‐ tem Module and other systems.

State laws or regulations regarding EDRs that conflict with federal regulation are pre-empted. This means that in the event of such conflict, the federal regulation governs. As of December 2016, 17 states have enacted laws relating to EDRs.

Free and open source software

Information on license for free and open-source software used in your vehicle can be found on the data carrier in your vehicle document wallet and with updates on the following website:

https://www.mercedes-benz.com/opensource

Registered trademarks

Bluetooth®is a registered trademark of Blue‐ tooth SIG, Inc.

DTS™ is a registered trademark of DTS, Inc.

Dolby®and MLP™ are registered trademarks of DOLBY Laboratories.

ESP®and PRE-SAFE®are registered trade‐ marks of Daimler AG.

HomeLink®is a registered trademark of Gen‐ tex Corporation.

iPod®and iTunes®are registered trademarks of Apple Inc.

Burmester®is a registered trademark of Burmester Audiosysteme GmbH.

Microsoft®and Windows Media®are regis‐ tered trademarks of Microsoft Corporation.

SIRIUS®is a registered trademark of Sirius XM Radio Inc.

HD Radio™ is a registered trademark of iBiq‐ uity Digital Corporation.

Gracenote®is a registered trademark of Gracenote, Inc.

ZAGAT Survey®and related brands are regis‐ tered trademarks of Zagat Survey, LLC.

General notes

Restraint system

Protection provided by the restraint system

The restraint system includes the following com‐ ponents:

Seat belt system

Airbags

Child restraint system

Child seat securing systems

The restraint system can help prevent the vehi‐ cle occupants from coming into contact with parts of the vehicle interior in the event of an accident. In the event of an accident, the restraint system can also reduce the forces to which the vehicle occupants are subjected.

A seat belt can only provide the best level of pro‐ tection if it is worn correctly. Depending on the detected accident situation, Emergency Tension‐ ing Devices and/or airbags supplement the pro‐ tection offered by a correctly worn seat belt. Emergency Tensioning Devices and/or airbags are not deployed in every accident.

In order for the restraint system to provide the intended level of protection, each vehicle occu‐ pant must observe the following information:

Fasten seat belts correctly.

Sit in an almost upright seat position with their back against the seat backrest.

Sit with their feet resting on the floor, if pos‐ sible.

Always secure persons under 5 ft (1.50 m) tall in an additional restraint system suitable for Mercedes-Benz vehicles.

However, no system available today can com‐ pletely eliminate injuries and fatalities in every accident situation. In particular, the seat belt and airbag generally do not protect against objects penetrating the vehicle from the outside. It is also not possible to completely rule out the risk of injury caused by the airbag deploying.

Reduced restraint system protection

WARNING Risk of injury or death due to modifications to the restraint system

Vehicle occupants may no longer be protec‐ ted as intended if alterations are made to the restraint system.

Never alter the parts of the restraint system.

Never tamper with the wiring or any electronic component parts or their software.

If it is necessary to modify the vehicle to accom‐ modate a person with disabilities, contact an authorized Mercedes-Benz Center for details.

USA only: for details, contact our Customer Assistance Center on 1-800-FOR-MERCedes (1‑800‑367‑6372).

Restraint system functionality

When the ignition is switched on, a self-test is performed, during which the 6 restraint sys‐

Occupant safety

tem warning lamp lights up. It goes out no later than a few seconds after the vehicle is started. The components of the restraint system are then functional.

Malfunctioning restraint system

A malfunction has occurred in the restraint sys‐ tem if:

The 6 restraint system warning lamp does not light up when the ignition is switched on

The 6 restraint system warning lamp lights up continuously or repeatedly during a journey

WARNING Risk of injury due to malfunc‐ tions in the restraint system

Components in the restraint system may be activated unintentionally or not deploy as planned in an accident.

Have the restraint system checked and repaired immediately at a qualified spe‐ cialist workshop.

Function of the restraint system in an acci‐ dent

How the restraint system works is determined by the severity of the impact detected and the type of accident anticipated:

Frontal impact

Rear impact

Side impact

Rollover

The activation thresholds for the components of the restraint system are determined based on the evaluation of the sensor values measured at various points in the vehicle. This process is preemptive in nature. The triggering/deployment of the components of the restraint system must take place in good time at the start of the colli‐ sion.

Factors which can only be seen and measured after a collision has occurred do not play a deci‐ sive role in the deployment of an airbag. Nor do they provide an indication of airbag deployment.

The vehicle may be deformed significantly with‐ out an airbag being deployed. This is the case if

only parts which are relatively easily deformed are affected and the rate of vehicle deceleration is not high. Conversely, an airbag may be deployed even though the vehicle suffers only minor deformation. If very rigid vehicle parts such as longitudinal members are hit, this may result in sufficiently high levels of vehicle decel‐ eration.

Depending on the detected deployment situa‐ tion, the components of the restraint system can be activated or deployed independently of each other:

Emergency Tensioning Device: frontal impact, rear impact, side impact, rollover

Driver's airbag, front passenger airbag: fron‐ tal impact

Knee airbag: frontal impact

Side airbag: side impact

Window curtain airbag: side impact, rollover, frontal impact

The front passenger airbag can only be deployed in an accident if the PASSENGER AIR BAG OFF indicator lamp is off. If the front passenger seat

Occupant safety

is occupied, make sure, both before and during the journey, that the status of the front passenger airbag is correct (/ page 47 ).

WARNING Risk of burns from hot air bag components

The air bag parts are hot after an air bag has been deployed.

Do not touch the air bag parts.

Have a deployed air bag replaced at a qualified specialist workshop as soon as possible.

Mercedes-Benz recommends that you have the vehicle towed to a qualified specialist workshop after an accident. Ta ke this into account, partic‐ ularly if an Emergency Tensioning Device is trig‐ gered or an airbag deployed.

If the Emergency Tensioning Devices are trig‐ gered or an airbag is deployed, you will hear a bang, and a small amount of powder may also be released:

The bang will not generally affect your hear‐ ing.

In general, the powder released is not haz‐ ardous to health but may cause short-term breathing difficulties to persons suffering from asthma or other pulmonary conditions.

Provided it is safe to do so, leave the vehicle immediately or open the window in order to prevent breathing difficulties.

Airbags and pyrotechnic Emergency Tensioning Devices contain perchlorate material, which may require special handling or environmental pro‐ tection measures. National guidelines regarding waste disposal must be observed. In California, see https://dtsc.ca.gov/. Using the search function, you will find information on perchlo‐ rate, for example.

Seat belts

Protection provided by the seat belt

Always fasten your seat belt correctly before starting a journey. A seat belt can only provide the best level of protection if it is worn correctly.

WARNING Risk of injury or death due to incorrectly fastened seat belt

If the seat belt is not worn correctly, it can‐ not perform its intended protective function.

In addition, an incorrectly fastened seat belt can also cause injuries, for example, in the event of an accident or when braking or changing direction suddenly.

Always ensure that all vehicle occu‐ pants have their seat belts fastened correctly and are sitting properly.

Always observe the instructions about the cor‐ rect driver's seat position and adjusting the seat (/ page 87).

In order for the correctly worn seat belt to pro‐ vide the intended level of protection, each vehi‐ cle occupant must observe the following infor‐ mation:

The seat belt must not be twisted and must fit tightly and snugly across the body.

Occupant safety

The seat belt must be routed across the cen‐ ter of the shoulder and as low down across the hips as possible.

The shoulder section of the seat belt should not touch your neck nor be routed under your arm or behind your back.

Avoid wearing bulky clothing, e.g. a winter coat.

Push the lap belt down as far as possible across your hips and pull tight with the shoul‐ der section of the belt. Never route the lap belt across your abdomen.

Pregnant women must also take particular care with this.

Never route the seat belt across sharp, poin‐ ted, abrasive or fragile objects.

Only one person should use each seat belt at any one time. Never allow babies and chil‐ dren to travel sitting on the lap of another vehicle occupant.

Never secure objects with a seat belt if the seat belt is also being used by one of the vehicle's occupants. Always observe the instructions for loading the vehicle when

securing objects, luggage or loads (/ page 98).

Also ensure that no objects, e.g. a cushion, are ever placed between a person and the seat.

The seat belts on the following seats are equip‐ ped with a special seat belt retractor:

Front passenger seat

Rear seats

Activate or deactivate the special seatbelt retractor (/ page 56).

If children are traveling in the vehicle, be sure to observe the instructions and safety notes on "Children in the vehicle" (/ page 52).

Limitations of the protection provided by the seat belt

WARNING Risk of injury or death due to an incorrect seat position

The seat belt does not offer the intended level of protection if you have not moved the seat backrest to an almost vertical position.

You could slip beneath the seat belt and injure yourself.

Adjust the seat properly before com‐ mencing your journey.

Always ensure that the seat backrest is in an almost vertical position and that the shoulder belt is routed across the center of your shoulder.

WARNING Risk of injury or death when additional restraint systems are not used for persons with a smaller stature

Persons under 5 ft (1.50 m ) tall cannot wear the seat belt correctly without a suitable additional restraint system.

Occupant safety

Always secure persons under 5 ft (1.50 m) tall in a suitable restraint sys‐ tem.

WARNING Risk of injury or death due to damaged or modified seat belts

Seat belts cannot provide protection in the following situations:

The seat belt is damaged, has been modi‐ fied, is extremely dirty, bleached or dyed

The seat belt buckle is damaged or extremely dirty

Modifications have been made to the Emergency Tensioning Device, seat belt anchorage or seat belt retractor

Seat belts may sustain non-visible damage in an accident, e.g. due to glass splinters.

Modified or damaged seat belts could tear or fail in the event of an accident, for example.

Modified Emergency Tensioning Devices could accidentally trigger or fail to function as intended.

Never modify the seat belt system, for example the seat belt, seat belt buckle, Emergency Tensioning Device, seat belt anchorage and seat belt retractor.

Make sure that the seat belts are undamaged, not worn and clean.

Always have the seat belts checked immediately after an accident at a qualified specialist workshop.

Only use seat belts which have been approved for your vehicle by Mercedes-Benz.

WARNING Risk of injury or death from deployed pyrotechnic Emergency Ten‐ sioning Devices

Pyrotechnic Emergency Tensioning Devices that have been deployed are no longer opera‐ tional and are unable to perform their inten‐ ded protective function.

Therefore, have deployed pyrotechnic Emergency Tensioning Devices immedi‐ ately replaced at a qualified specialist workshop.

Mercedes-Benz recommends that you have the vehicle towed to a qualified specialist workshop after an accident.

NOTE Damage caused by trapping the seat belt

If an unused seat belt is not fully retracted, it may become trapped in the door or in the seat mechanism.

Always ensure that an unused seat belt is fully retracted.

Fastening seat belts

If the seat belt is pulled quickly or sharply, the seat belt retractor locks. The seat belt strap can‐ not be pulled out any further.

Occupant safety

Always engage seat belt tongue 2 of the seat belt into seat belt buckle 1 of the cor‐ responding seat.

Vehicles with automatic front passenger air‐ bag shutoff:

NOTE Deployment of the Emergency Tensioning Device and side air bag when the front passenger seat is unoccupied

If the seat belt tongue is engaged in the seat belt buckle of the unoccupied front passenger seat, the Emergency Tensioning Device and the side air bag may also deploy in the event of an accident along with other systems.

Only one person should use each seat belt at any one time.

Vehicles without automatic front passenger airbag shutoff:

NOTE Deployment of the Emergency Tensioning Device when the frontpassenger seat is unoccupied

If the seat belt tongue is engaged in the seat belt buckle of the unoccupied frontpassenger seat, the Emergency Tensioning Device may also deploy in the event of an accident along with other systems.

Only one person should use each seat belt at any one time.

Seat belt adjustment function

Vehicles with PRE-SAFE®: After a front seat

belt has been fastened, the automatic seat belt adjustment may apply a certain tightening force. Do not hold the seat belt tightly while it is adjusting.

You can activate and deactivate the seat belt adjustment function using the multimedia sys‐ tem (/ page 41 ).

Activating/deactivating seat belt adjustment via the multimedia system

Multimedia system:

Activate or deactivate Belt Adjustment.

Occupant safety

Releasing seat belts

Press the release button in the seat belt buckle and guide the seat belt back with the seat belt tongue.

Seat belt warning function for the driver and front passenger

The ü seat belt warning lamp in the instru‐ ment display is a reminder that all vehicle occu‐ pants must wear their seat belts correctly.

The ü seat belt warning lamp lights up for six seconds every time the vehicle is started.

In addition, a warning tone may sound.

When the driver's and front passenger's doors are closed and the driver and front passenger have fastened their seat belts, the seat belt warning goes out.

In the following cases, the seat belt warning lights up during a journey if:

The vehicle speed exceeds 15 mph (25 km/h) and the driver's or front passenger seat belt is not fastened.

The driver or front passenger unfastens their seat belt while the vehicle is in motion.

Airbags

Overview of airbags

Driver's knee airbag

Driver's airbag

Front passenger airbag

Front passenger knee airbag

Window curtain airbag

Side airbag

The installation location of an airbag is identified by the AIRBAG symbol.

When enabled, an airbag can provide additional protection for the respective vehicle occupant.

Potential protection provided by each airbag:

Knee airbag: thigh, knee and lower leg

Driver's airbag, front passenger airbag: head and ribcage

Window curtain airbag: head

Side airbag: ribcage and pelvis

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement. You could otherwise fail to recognize dangers.

WARNING Risk of injury or death if the co-driver airbag is enabled

If the co-driver airbag is enabled, a child on the co-driver seat may be struck by the codriver airbag during an accident.

Occupant safety

NEVER use a rearward-facing child restraint system on a seat with an ENABLED FRONT AIRBAG; DEATH or SERIOUS INJURY to the CHILD can occur.

When installing a child restraint system on the front passenger seat, observe the vehicle-spe‐ cific information (/ page 61 ). Also, always observe the notes on rearward-facing or forward-facing child restraint systems on the front passenger seat.

Information on automatic front passenger airbag shutoff

The front passenger airbag can only be deployed in an accident if the PASSENGER AIR BAG OFF indicator lamp is off. If the front passenger seat is occupied, make sure, both before and during the journey, that the status of the front passenger airbag is correct (/ page 47 ).

NOTE Important points to remember if the front passenger seat is unoccupied

In an accident, the components of the restraint system may deploy unnecessarily on the front passenger side if:

There are heavy objects on the front passenger seat.

The seat belt tongue is engaged in the seat belt buckle of the front passenger seat and the front passenger seat is unoccupied.

Stow objects in a suitable place.

Only one person should use each seat belt at any one time.

Depending on the detected accident situation, the window curtain airbag on the front passenger side may deploy. The airbag is deployed regardless of whether the front passenger seat is occupied.

Protective capacity of the airbags

Depending on the accident situation, an airbag may supplement the protection offered by a cor‐ rectly fastened seat belt.

WARNING Risk of injury or death due to an incorrect seat position

If you deviate from the correct seat position, the airbag cannot perform its intended pro‐ tective function.

Each vehicle occupant must make sure of the following:

Fasten seat belts correctly. Pregnant women must take particular care to ensure that the lap belt never lies across the abdomen.

Adopt the correct seat position and keep as far away as possible from the airbags.

Observe the following information.

Always make sure that there are no objects between the airbag and vehicle occupant.

Occupant safety

To avoid the risks resulting from the deployment of an airbag, each vehicle occupant must observe the following information in particular:

Before starting your journey, adjust your seat correctly; the driver's seat and front passenger seat should be moved as far back as possible.

When doing so, always observe the informa‐ tion on the correct driver's seat position (/ page 87).

Only hold the steering wheel by the steering wheel rim. This allows the airbag to be fully deployed.

Always lean against the seat backrest when the vehicle is in motion. Do not lean forwards or against the door or side window. You may otherwise be in the deployment area of the airbags.

The occupants must always keep their feet on the floor. Do not put your feet on the cockpit, for example. Yo ur feet may other‐ wise be in the deployment area of the airbag.

If children are traveling in the vehicle, observe the additional notes (/ page 52).

Always store and secure objects correctly.

Objects in the vehicle interior may prevent an airbag from functioning correctly. Each vehicle occupant must always make sure of the follow‐ ing in particular:

There are no people, animals or objects between the vehicle occupants and an air‐ bag.

There are no objects between the seat, door and door pillar (B-pillar).

There are no hard objects, e.g. coat hangers, hanging on the grab handles or coat hooks.

There are no accessory parts, such as mobile navigation devices, mobile phones or cup holders, within the deployment area of an air‐ bag, e.g. on the cockpit, on the door, on the side window or on the side trim.

In addition, no connecting cables, tensioning straps or retaining straps must be routed or attached to the vehicle within the deploy‐ ment area of an airbag. Always comply with the accessory manufacturer's installation instructions and, in particular, the notes on suitable places for installation.

There are no heavy, sharp-edged or fragile objects in the pockets of your clothing. Store such objects in a suitable place.

Limited protection provided by airbags

WARNING Risk of injury due to modifi‐ cations to the cover of an airbag

If you modify the cover of an airbag or affix objects such as stickers to it, the airbag may no longer function correctly.

Never modify the cover of an airbag and do not affix objects to it.

The installation location of an airbag is identified by the AIRBAG symbol (/ page 42).

WARNING Risk of injury or death due to the use of unsuitable seat covers

Due to unsuitable seat covers, the airbags cannot protect vehicle occupants as inten‐ ded.

Occupant safety

In addition, the operation of the automatic front passenger airbag shutoff could be restricted.

You should only use seat covers that have been approved for the correspond‐ ing seats by Mercedes-Benz.

WARNING Risk of injury due to malfunc‐ tioning sensors in the door

The function of the airbags can be impaired due to modifications or incorrect work per‐ formed on the doors or door trim, or if the doors are damaged.

Never modify the doors or parts of the doors.

Always have work on the doors or door trim carried out at a qualified specialist workshop.

WARNING Risk of injury due to deployed airbag

A deployed airbag no longer offers any pro‐ tection.

Have the vehicle towed to a qualified specialist workshop in order to have the deployed airbag replaced.

Have deployed airbags replaced immediately.

Status of the front passenger front airbag

Function of the automatic front passenger airbag shutoff

The automatic front passenger airbag shutoff is able to detect whether the front passenger seat is occupied by a person or a child restraint sys‐ tem. The front passenger airbag and front passenger knee airbag are enabled or disabled accordingly.

WARNING Risk of injury or death due to objects under the co-driver seat

Objects trapped under the co-driver seat can interfere with the function of the automatic co-driver airbag shutoff or damage the sys‐ tem.

Do not store any objects under the codriver seat.

When the co-driver seat is occupied, make sure that no objects are trapped under the co-driver seat.

When installing a child restraint system on the front passenger seat, always make sure of the following:

Ensure that the child restraint system is posi‐ tioned correctly (/ page 51 ).

Always comply with the child restraint sys‐ tem manufacturer's installation instructions.

Never place objects (e.g. cushions) under or behind the child restraint system.

Fully retract the seat cushion length adjust‐ ment.

The entire base of the child restraint system must always rest on the sitting surface of the front passenger seat.

The backrest of the forward-facing child restraint system must, as far as possible, be

Occupant safety

resting on the seat backrest of the front passenger seat.

The child restraint system must not touch the roof or be put under strain by the head restraints. Adjust the seat backrest inclina‐ tion and the head restraint setting accord‐ ingly.

WARNING Risk of injury or death due to objects between the seat surface and the child restraint system

Objects between the sitting surface and the child restraint system could affect the func‐ tion of the automatic co-driver airbag shut‐ off.

Do not place any objects between the sitting surface and the child restraint system.

The entire base of the child restraint system must always rest on the sitting surface of the co-driver seat.

The backrest of the forward-facing child restraint system must, as far as possi‐

ble, be resting on the seat backrest of the co-driver seat.

Always comply with the child restraint system manufacturer's installation instructions.

A person on the front passenger seat must observe the following information:

Fasten seat belts correctly (/ page 38).

Sit in an almost upright seat position with their back against the seat backrest.

Sit with their feet resting on the floor, if pos‐ sible.

The front passenger airbag may otherwise be disabled by mistake, for example, in the follow‐ ing situations:

The front passenger transfers their weight by supporting themselves on a vehicle armrest.

The front passenger sits in such a way that their weight is raised from the sitting sur‐ face.

WARNING Risk of injury or death due to a disabled front passenger airbag

The front passenger airbag is disabled when the PASSENGER AIR BAG OFF indicator lamp is lit.

A person in the front passenger seat could then, for example, come into contact with the vehicle interior, especially if the person is sitting too close to the cockpit.

If the front passenger seat is occupied, always ensure that:

The classification of the person in the front passenger seat is correct and the front passenger airbag is enabled or disa‐ bled in accordance with the person in the front passenger seat.

The front passenger seat has been moved as far back as possible.

The person is seated correctly.

Both before and during the journey, ensure that the status of the front passenger airbag is correct.

Occupant safety

If the front passenger seat is occupied, the clas‐ sification of the person or child restraint system on the front passenger seat takes place after the front passenger airbag shutoff self-test. The PASSENGER AIR BAG indicator lamps display the status of the front passenger airbag.

Always observe the notes on the function of the PASSENGER AIR BAG indicator lamps (/ page 47).

Function of the PASSENGER AIR BAG indica‐ tor lamps

Self-test of automatic front passenger airbag shutoff

When the ignition is switched on, a self-test is performed during which the two PASSENGER AIR BAG ON and OFF indicator lamps light up simultaneously.

The status of the front passenger airbag is dis‐ played via the PASSENGER AIR BAG indicator lamps after the self-test:

ON is lit: the front passenger airbag may deploy during an accident.

The indicator lamp goes out after approx‐ imately 60 seconds.

ON and OFF are not lit: the front passenger airbag may deploy during an accident.

OFF is lit: the front passenger airbag is disa‐ bled. It will then not be deployed in the event of an accident.

If the PA SSENGER AIR BAG ON indicator lamp is off, only the PA SSENGER AIR BAG OFF indicator lamp shows the status of the front passenger airbag. The PASSENGER AIR BAG OFF indicator lamp may be lit continuously or be off.

If the PASSENGER AIR BAG OFF indicator lamp and the 6 restraint system warning lamp light up simultaneously, the front passenger seat may not be used. Also in this case, do not install a child restraint system on the front passenger seat. Have the automatic front passenger airbag

Occupant safety

shutoff checked and repaired immediately at a qualified specialist workshop.

Status display

If the front passenger seat is occupied, ensure, both before and during the journey, that the sta‐ tus of the front passenger airbag is correct for the current situation.

After installing a rearward-facing child restraint system on the front passenger seat: PASSENGER AIR BAG OFF must be lit con‐

tinuously.

WARNING Risk of injury or death when using a rearward-facing child restraint system while the front passenger airbag is enabled

If you secure a child in a rearward-facing child restraint system on the front passenger seat and the PASSENGER AIR BAG OFF indi‐ cator lamp is off, the front passenger airbag can deploy in the event of an accident.

The child could be struck by the airbag.

Always ensure that the front passenger air‐ bag is disabled. The PASSENGER AIR BAG OFF indicator lamp must be lit.

NEVER use a rearward-facing child restraint system on a seat with an ENABLED FRONT AIRBAG; DEATH or SERIOUS INJURY to the CHILD can occur.

When installing a child restraint system on the front passenger seat, observe the vehicle-spe‐ cific information (/ page 61 ).

Depending on the child restraint system and the stature of the child, the PASSENGER AIR BAG OFF indicator lamp may be off. In this case, do not install the rearward-facing child restraint system on the front passenger seat.

Instead, install the rearward-facing child restraint system on a suitable rear seat.

After installing a forward-facing child restraint system on the front passenger seat: depending on the child restraint system

and the stature of the child, PASSENGER AIR BAG OFF may be lit continuously or be off. Always observe the following information.

WARNING Risk of injury or death due to incorrect positioning of the forwardfacing child restraint system

If you secure a child in a forward-facing child restraint system on the front passenger seat that is positioned too close to the cockpit, in the event of an accident, the child could:

come into contact with parts of the vehi‐ cle's interior if the PASSENGER AIR BAG OFF indicator lamp is lit, for example

be struck by the airbag if the PASSENGER AIR BAG OFF indicator lamp is off

Always move the front passenger seat as far back as possible and fully retract the seat cushion length adjustment. While doing so, always make sure that the shoulder belt strap is correctly routed from the seat belt outlet of the vehicle to the shoulder belt guide on the child restraint system. The shoulder belt strap must be routed forwards and downwards from the seat belt outlet. If

Occupant safety

necessary, adjust the front passenger seat accordingly.

Always comply with the child restraint system manufacturer's installation instructions.

When installing a child restraint system on the front passenger seat, observe the vehicle-spe‐ cific information (/ page 61 ).

If a person is sitting on the front passenger seat: PASSENGER AIR BAG OFF may be lit con‐

tinuously or be off, depending on the person's stature.

A person on the front passenger seat must always observe the following information:

If the front passenger seat is occupied by an adult or a person with a stature correspond‐ ing to that of an adult, the PA SSENGER AIR BAG OFF indicator lamp must be off. This indicates that the front passenger airbag is enabled.

If the PA SSENGER AIR BAG OFF indicator lamp is lit continuously, an adult or person

with a build corresponding to that of an adult should not use the front passenger seat.

Instead, they should use a rear seat.

If the front passenger seat is occupied by a person of smaller stature (e.g. a teenager or small adult), the PASSENGER AIR BAG OFF indicator lamp either lights up continuously or remains off, depending on the classifica‐ tion.

If the PA SSENGER AIR BAG OFF indicator lamp is off: move the front passenger seat as far back as possible, or the per‐ son of smaller stature should use a rear seat.

If the PA SSENGER AIR BAG OFF indicator lamp is lit continuously: the person of smaller stature should not use the front passenger seat.

WARNING Risk of injury or death when the PASSENGER AIR BAG OFF indicator lamp is lit

If the PA SSENGER AIR BAG OFF indicator lamp remains lit after the self-test, the front passenger airbag is disabled.

If the front passenger seat is occupied, always ensure that:

The classification of the person in the front passenger seat is correct and the front passenger airbag is enabled or disa‐ bled in accordance with the person in the front passenger seat.

The person is seated properly with a cor‐ rectly fastened seat belt.

Be sure to also observe the following further related subjects:

Child restraint system on the front passenger seat (/ page 61 )

Occupant safety

PRE-SAFE®system

PRE-SAFE®(anticipatory occupant protec‐ tion)

PRE-SAFE®is able to detect certain critical driv‐ ing situations and implement pre-emptive meas‐ ures to protect the vehicle occupants.

PRE-SAFE®can implement the following meas‐ ures independently of each other:

Tightening the seat belts on the driver's seat and front passenger seat.

Closing the side windows.

Vehicles with sliding sunroof: Close the sliding sunroof.

Vehicles with memory function: Move the front passenger seat to a more favorable seat position.

PRE-SAFE®Sound: provided that the multi‐ media system is switched on, generates a brief noise signal to stimulate the innate pro‐ tective mechanism of a person's hearing.

NOTE Damage caused by objects in the footwell or behind the seat

The automatic adjustment of the seat posi‐ tion may result in damage to the seat and/or the object.

Stow objects in a suitable place.

Reversing the PRE-SAFE®system measures

If an accident did not occur, the pre-emptive measures that were taken are reversed.

You will need to perform certain settings your‐ self.

If the seat belt pre-tensioning is not reduced, move the seat backrest back slightly. The locking mechanism releases.

Function of PRE-SAFE®PLUS (anticipatory occupant protection plus)

PRE-SAFE®PLUS can detect certain impacts, particularly an imminent rear impact, and take pre-emptive measures to protect the vehicle

occupants. These measures cannot necessarily prevent an imminent impact.

PRE-SAFE®PLUS can implement the following measures independently of each other:

Tightening the seat belts on the driver's seat and front passenger seat.

Increasing brake pressure when the vehicle is stationary. This brake application is can‐ celed automatically when the vehicle pulls away.

If an accident did not occur, the pre-emptive measures that were taken are reversed.

System limits

The system will not initiate any action in the fol‐ lowing situations:

When backing up

The system will not initiate any braking applica‐ tion in the following situations:

Whilst driving

Occupant safety

When entering or exiting a parking space while using Active Parking Assist

Automatic measures after an accident

Depending on the type and severity of the acci‐ dent, and depending on the vehicle's equipment, the following measures can be implemented, for example:

Automatic braking (post-collision brake)

Activating the hazard warning lights

Triggering an automatic emergency call (/ page 239)

Switching off the engine

To restart the vehicle, switch the ignition off and switch it back on (/ page 126). Depending on the type and severity of the accident, it is possible that the vehicle can no longer be started.

Switching off the fuel supply

Unlocking the vehicle doors

Lowering the side windows

Displaying the emergency guide in the multi‐ media system display

Switching on the interior lighting

Function of the post-collision brake

Depending on the accident situation, the postcollision brake can minimize the severity of a fur‐ ther collision or even avoid it.

If an accident is detected, the post-collision brake can implement automatic braking. When the vehicle has come to a standstill, the electric parking brake is automatically applied.

The driver can cancel automatic braking by tak‐ ing the following actions:

Braking more strongly than automatic brak‐ ing

Fully depressing the accelerator pedal with force

Safely transporting children in the vehicle

Always observe when children are traveling in the vehicle

Also strictly observe the safety notes for the specific situation. In this way you can recog‐ nize potential risks and avoid dangers if chil‐ dren are traveling in the vehicle (/ page 52).

Be diligent

Bear in mind that negligence when securing a child in the child restraint system may have seri‐ ous consequences. Always be diligent in secur‐ ing a child carefully before every journey.

To improve protection for children younger than 12 years old or under 5 ft (1.50 m) in height, Mercedes-Benz recommends you observe the following information:

Always secure the child in a child restraint system suitable for this Mercedes-Benz vehi‐ cle.

The child restraint system must be appropri‐ ate to the age, weight and size of the child.

Occupant safety

The vehicle seat must be suitable for instal‐ ling a child restraint system.

Accident statistics show that children secured on the rear seats are generally safer than chil‐ dren secured on the front seats. For this reason, Mercedes-Benz strongly advises that you install a child restraint system on a rear seat.

The generic term child restraint system

The generic term child restraint system is used in this Operator's Manual. A child restraint sys‐ tem is, for example:

A baby car seat

A rearward-facing child seat

A forward-facing child seat

A child booster seat with a backrest and seat belt guide

Mercedes-Benz recommends using a child booster seat with a backrest.

The child restraint system must be appropriate to the age, weight and size of the child.

Observe laws and legal requirements

Always observe the legal requirements when using a child restraint system in the vehicle.

Observe standards for child restraint sys‐ tems

All child restraint systems must meet the follow‐ ing standards:

U.S. Federal Motor Vehicle Safety Standards 213 and 225

Canadian Motor Vehicle Safety Standards 213 and 210.2

Confirmation that the child restraint system complies with the standards can be found on an instruction label on the child restraint system. This confirmation can also be found in the instal‐ lation instructions that are included with the child restraint system.

Detecting risks, avoiding danger

Securing systems for child restraint systems in the vehicle

Only use the following securing systems for child restraint systems:

The LATCH-type (ISOFIX) securing rings

The vehicle's seat belt system

The To p Tether anchorages

Installing a LATCH-type (ISOFIX) child restraint system is favored.

Simply attaching to the securing rings on the vehicle can reduce the risk of installing the child restraint system incorrectly.

When securing a child with the integrated seat belt of the LATCH-type (ISOFIX) child restraint system, always comply with the permissible gross weight for the child and child restraint sys‐ tem (/ page 56).

A booster seat may be necessary to achieve proper seat belt positioning for children over 40 lbs (18 kg) in weight or until they reach a

Occupant safety

height where a three-point seat belt can be installed properly without a booster seat.

Mercedes-Benz recommends a suitable child booster seat with a backrest and seat belt guide.

Advantage of a rearward-facing child restraint system

It is preferable to transport a baby or a small child in a suitable rearward-facing child restraint system. In this case, the child sits in the oppo‐ site direction to the direction of travel and faces backwards.

Babies and small children have comparatively weak neck muscles in relation to the size and weight of their head. The risk of injury to the cer‐ vical spine during an accident can be reduced in a rearward-facing child restraint system.

Always secure a child restraint system cor‐ rectly

WARNING Risk of injury or death due to incorrect installation of the child restraint system

The child can then not be protected or restrained as intended.

Be sure to comply with the manufactur‐ er's installation instructions for the child restraint system and its correct use.

Make sure that the entire base of the child restraint system always rests on the sitting surface of the seat.

Never place objects (e.g. cushions) under or behind the child restraint sys‐ tem.

Use child restraint systems only with the original cover designed for them.

Always replace damaged covers with genuine covers.

WARNING Risk of injury or death due to unsecured child restraint systems in the vehicle

If the child restraint system is incorrectly installed or not secured, it can come loose.

The child restraint system could be flung around and hit vehicle occupants.

Always install child restraint systems correctly, even when not in use.

Always comply with the child restraint system manufacturer's installation instructions.

Always observe the child restraint system manufacturer's installation and operating instructions as well as the vehicle-specific information:

Installing the LATCH-type (ISOFIX) child restraint system on the rear seat (/ page 56).

Securing the child restraint system with the seat belt on the rear seat (/ page 60).

Occupant safety

Securing the child restraint system with the seat belt on the front passenger seat (/ page 62). Observe the specific

instructions for the rearward-facing and forward-facing child restraint systems (/ page 61 ).

If the front passenger seat is occupied, ensure, both before and during the jour‐ ney, that the status of the front passenger airbag is correct for the cur‐ rent situation (/ page 47).

Observe the warning labels in the vehicle interior and on the child restraint system.

Also secure Top Tether if present.

Do not modify the child restraint system

WARNING Risk of injury due to modifi‐ cations to the child restraint system

The child restraint system can no longer function properly. This poses an increased risk of injury.

Never modify a child restraint system.

Only affix accessories which have been specially approved for this child restraint system by the child restraint system's manufacturer.

Only use child restraint systems which are in proper working condition

WARNING Risk of injury or death caused by the use of damaged child restraint systems

Child restraint systems or their retaining sys‐ tems that have been subjected to stress in an accident may not be able to perform their intended protective function.

It may be the case that the child cannot be properly restrained.

Always immediately replace child restraint systems that have been dam‐ aged or involved in an accident.

Have the securing systems for the child restraint systems checked at a qualified specialist workshop before installing a child restraint system again.

Avoid direct sunlight

WARNING Risk of burns when the child seat is exposed to direct sunlight

If the child restraint system is exposed to direct sunlight or heat, parts could heat up.

Children could suffer burns from these parts, particularly on the metallic parts of the child restraint system.

Always make sure that the child restraint system is not exposed to direct sunlight.

Protect the child restraint system, e.g. with a blanket.

If the child restraint system has been exposed to direct sunlight, allow it to cool before securing a child in it.

Never leave children unattended in the vehicle.

Occupant safety

Observe when stopping or parking

WARNING Risk of accident and injury due to children left unattended in the vehicle

If children are left unsupervised in the vehi‐ cle, they could, in particular:

Open doors, thereby endangering other persons or road users.

Get out and be struck by oncoming traf‐ fic.

Operate vehicle equipment and become trapped, for example.

In addition, the children could also set the vehicle in motion, for example by:

Releasing the parking brake.

Changing the transmission position.

Starting the vehicle.

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

Keep the vehicle SmartKey out of reach of children.

WARNING Danger to life due to expo‐ sure to extreme heat or cold in the vehi‐ cle

If people, particularly children, are exposed to extreme temperatures over an extended period of time, there is a risk of serious injury or danger to life.

Never leave persons, children in partic‐ ular, unattended in the vehicle.

Overview of suitable seats in the vehicle for installing a child restraint system

Left/right rear seat

Preferred securing system:

LATCH-type (ISOFIX) child seat anchor

Also secure Top Tether if present (/ page 58).

Alternative securing system:

Vehicle seat belt

Front passenger seat

Securing system:

Vehicle seat belt

Be sure to observe:

If the front passenger seat is occupied, ensure, both before and during the journey, that the status of the front passenger airbag is correct for the current situation (/ page 47 ).

Observe the notes on automatic front passenger airbag shutoff (/ page 45)

Center rear seat

Securing system:

Vehicle seat belt

Also secure Top Tether if present (/ page 58).

Occupant safety

Activating or deactivating the special seal belt retractor of the seat belt

WARNING Risk of injury or death if a seat belt is unfastened while the vehicle is in motion

If the seat belt is released while the vehicle is in motion, the child safety lock is deactivated and the child restraint system is no longer correctly secured. The seat belt is drawn in slightly by the inertia reel and cannot be immediately closed again.

Stop the vehicle immediately in accord‐ ance with the traffic conditions.

Activate the special seal belt retractor again and correctly secure the child restraint system.

When enabled, the special seal belt retractor ensures that the seat belts of the front passenger seat and rear seats do not slacken once the child restraint system is secured.

The seat belts on the following seats are equip‐ ped with a special seal belt retractor:

Front passenger seat

Rear seats

To install a child restraint system: when installing a child restraint system, always observe the manufacturer's installation and operating instructions as well as the informa‐ tion in this Operator's Manual.

Pull the seat belt smoothly from the seat belt outlet.

Engage the seat belt tongue in the seat belt buckle.

To activate the special seal belt retrac‐ tor: pull the seat belt out fully and let the

inertia reel retract it again. When the special seal belt retractor is activa‐ ted, you will hear a ratcheting sound.

Push the child restraint system down until the seat belt sits tightly.

To deactivate the special seal belt retrac‐ tor: press the release button of the seat belt

buckle.

Hold the seat belt tongue and guide back to the seat belt outlet.

Installing a LATCH-type (ISOFIX) child restraint system on the rear seat

WARNING Risk of accident if the rear bench seat, rear seat and seat backrest are not engaged

The rear bench seat, rear seat and seat back‐ rest may fold forwards, even when you are driving.

As a result, the vehicle occupant will be pushed into the seat belt with increased force. The seat belt will not be able to protect as intended and could cause additional injury.

Objects or loads in the trunk or cargo compartment will not be restrained by the seat backrest.

Occupant safety

Make sure that the rear bench seat, the rear seat and the seat backrest are engaged before every trip.

If the rear seat backrest is not engaged and locked in place, the red lock verification indica‐ tor will be visible.

WARNING Risk of injury or death if the permissible gross mass of the child and child restraint system is exceeded

The LATCH-type (ISOFIX) child seat securing systems may be overloaded and the child may not be restrained in the event of an acci‐ dent, for example.

If the child and the child restraint sys‐ tem together weigh more than the per‐ missible gross mass of 73 lb (33 kg), use only a LATCH-type (ISOFIX) child restraint system that secures the child with the vehicle seat belt.

Also secure the child restraint system with the Top Tether belt, if available.

Always comply with the information about the mass of the child restraint system:

In the manufacturer's installation and operat‐ ing instructions for the child restraint system used

On a label on the child restraint system, if present

Regularly check that the permissible gross mass of the child and child restraint system is still complied with.

When installing a child restraint system, observe the following:

Always observe the correct use of the seats and consider their suitability for attaching a child restraint system.

Always comply with the manufacturer's installation and operating instructions for the child restraint system used.

Make sure that the child's feet do not touch the front seat. If necessary, move the front seat slightly forwards.

® When installing a LATCH-type (ISOFIX) child restraint system, also observe the follow‐ ing:

When using a baby car seat in weight group 0/0+ and a rearward-facing child restraint system in weight group I on a rear seat: adjust the front seat so that the

seat does not touch the child restraint sys‐ tem.

When using a forward-facing child restraint system in weight group I:

remove the head restraint from the respec‐ tive seat, if possible. In addition, the back‐ rest of the child restraint system must lie as flat as possible against the backrest of the vehicle seat.

After the child restraint system has been removed, replace the head restraints again immediately and adjust them correctly.

If the head restraint of the child seat cannot be fully extended when it is installed in the vehicle, this will result in restrictions on the maximum size setting for child restraint sys‐ tems in weight category II or III.

Occupant safety

Contact with the roof when the head restraint is fully extended and locked in place will not result in any restrictions on use.

The child restraint system must not be put under strain between the roof and the seat cushion and/or be installed facing the wrong direction. Where possible, adjust the seat cushion inclination accordingly.

The child restraint system must not be put under strain by the head restraint. Adjust the head restraints as appropriate.

LATCH-type (ISOFIX) mounting bracket

Before every journey, make sure that the LATCHtype (ISOFIX) child restraint system is engaged correctly in both mounting brackets in the vehi‐ cle.

NOTE Damage to the seat belt for the center seat during installation of the child restraint system

Make sure that the seat belt is not trap‐ ped.

Attach the LATCH-type (ISOFIX) child restraint system to both mounting brackets in the vehicle.

Securing Top Tether

WARNING Risk of injury or death if the rear seat backrests are not locked after Top Tether belts are installed

The rear seat backrests may fold forwards when you are driving.

As a result, child restraint systems will no longer be able to perform their intended pro‐ tective function. This may also cause addi‐ tional injuries.

Occupant safety

Always lock rear seat backrests after installing To p Tether belts.

Observe the lock verification indicator.

If the rear seat backrest is not engaged and locked in place, the red lock verification indica‐ tor will be visible.

If the child restraint system is equipped with a Top Tether belt:

The risk of injury may be reduced by To p Tether. The Top Tether belt enables an additional connection between the child restraint system attached with LATCHtype (ISOFIX) and the vehicle.

Fold up cover 2 of Top Tether anchorage

Vehicles with adjustable head restraints:

If necessary, slide head restraint 1 upwards (/ page 92).

Guide To p Tether belt 4 under head restraint 1 between the two head restraint bars.

Vehicles without adjustable head restraints:

Top Tether belt with one seat belt strap: guide To p Tether belt 4 over the center of head restraint 1.

Top Tether belt with two seat belt straps: guide one Top Tether belt 4 past head restraint 1 on the right and left sides respectively.

All vehicles:

Install the LATCH-type (ISOFIX) child restraint system with Top Tether. In doing so, comply with the child restraint system manufactur‐ er's installation instructions.

Occupant safety

Hook To p Tether hook 5 of Top Tether belt

4 into Top Tether anchorage 3 without

twisting.

Tension Top Tether belt 4. In doing so, com‐ ply with the child restraint system manufac‐ turer's installation instructions.

Fold down cover 2 of Top Tether anchorage

Vehicles with adjustable head restraints:

If necessary, slide head restraint 1 down‐ wards (/ page 92). Make sure that you do not interfere with the correct routing of Top Tether belt 4.

Securing the child restraint system with the seat belt

Securing the child restraint system with the seat belt on the rear seat

WARNING Risk of accident if the rear bench seat, rear seat and seat backrest are not engaged

The rear bench seat, rear seat and seat back‐ rest may fold forwards, even when you are driving.

As a result, the vehicle occupant will be pushed into the seat belt with increased force. The seat belt will not be able to protect as intended and could cause additional injury.

Objects or loads in the trunk or cargo compartment will not be restrained by the seat backrest.

Make sure that the rear bench seat, the rear seat and the seat backrest are engaged before every trip.

If the rear seat backrest is not engaged and locked in place, the red lock verification indica‐ tor will be visible.

When installing a belt-secured child restraint system, observe the following:

Always comply with the manufacturer's installation and operating instructions for the child restraint system used.

When using a weight category 0/0+ baby car seat and a weight category I rearward-facing child restraint system on a rear seat: adjust the front seat so that

the seat does not touch the child restraint system.

When using a weight category I forwardfacing child restraint system: remove the

head restraint from the respective seat, if possible.

After the child restraint system has been removed, replace the head restraints again immediately and adjust them correctly.

The backrest of the forward-facing child restraint system must, as far as possible, be

Occupant safety

resting on the seat backrest of the rear seat.

Contact with the roof when the head restraint is fully extended and locked in place will not result in any restrictions on use.

The child restraint system must not be put under strain by the head restraint. Adjust the head restraints as appropriate.

Make sure that the child's feet do not touch the front seat. If necessary, move the front seat slightly forwards.

The seat belts on the following seats are equip‐ ped with a special seat belt retractor:

Front passenger seat

Rear seats

When enabled, the special seat belt retractor ensures that the seat belts of the front passenger seat and rear seats do not slacken once the child restraint system is secured (/ page 56).

Install the child restraint system. The entire base of the child restraint system must always rest on the sitting surface of the rear seat.

Always make sure that the shoulder belt strap is correctly routed from the seat belt outlet of the vehicle to the shoulder belt guide on the child restraint system. The shoulder belt strap must be routed for‐ wards and downwards from the seat belt out‐ let.

Notes on rearward-facing and forward-facing child restraint systems on the front passenger seat

WARNING Risk of injury or death when using a rearward-facing child restraint system while the front passenger airbag is enabled

The child could be struck by the airbag.

Always ensure that the front passenger air‐ bag is disabled. The PASSENGER AIR BAG OFF indicator lamp must be lit.

NEVER use a rearward-facing child restraint system on a seat with an ENABLED FRONT AIRBAG; DEATH or SERIOUS INJURY to the CHILD can occur.

Occupant safety

Observe the specific instructions for the rear‐ ward-facing and forward-facing child restraint systems (/ page 62).

Always observe the status of the front passenger airbag on the PASSENGER AIR BAG OFF indica‐ tor lamp:

When using a rearward-facing child restraint system on the front passenger seat, the front passenger airbag must always be disabled. This is only the case if the PA SSENGER AIR BAG OFF indicator lamp is lit continuously (/ page 47).

If the PA SSENGER AIR BAG OFF indicator lamp is off, the front passenger airbag is ena‐ bled. The front passenger airbag may deploy during an accident.

Securing the child restraint system with the seat belt on the front passenger seat

When installing a belt-secured child restraint system on the front passenger seat, always observe the following:

Observe the notes on rearward-facing and forward-facing child restraint systems on the front passenger seat (/ page 61 ).

Observe the child restraint system manufac‐ turer's installation and operating instruc‐ tions.

When using a forward-facing child restraint system in weight category I: remove the head restraint from the respective seat, if possible.

After the child restraint system has been removed, replace the head restraints again immediately and adjust them correctly.

The backrest of the forward-facing child restraint system must, as far as possible, be resting on the seat backrest of the front passenger seat.

If the head restraint of the child seat cannot be fully extended when it is installed in the

vehicle, this will result in restrictions on the maximum size setting for child restraint sys‐ tems in weight category II or III.

Contact with the roof when the head restraint is fully extended and locked in place will not result in any restrictions on use.

The child restraint system must not be put under strain between the roof and the seat cushion and/or be installed facing the wrong direction.

The child restraint system must not be put under strain by the head restraint. Adjust the head restraints as appropriate.

Never place objects (e.g. cushions) under or behind the child restraint system.

The seat belt on the front passenger side is equipped with a special seat belt retractor.

When enabled, the special seat belt retractor ensures that the seat belt does not slacken once the child seat is secured (/ page 56).

Occupant safety

Set the front passenger seat as far back as possible and move the seat into the highest position if possible.

Adjust the seat cushion inclination so that the front edge of the seat cushion is in the highest position and the back edge of the seat cushion is in the lowest position.

Set the seat backrest to the most vertical position possible.

Install the child restraint system. The entire base of the child restraint system must always rest on the sitting surface of the front passenger seat.

If necessary, adjust the front passenger seat accordingly.

Child safety locks

Activating or deactivating the child safety lock for the rear doors

WARNING Risk of accident and injury due to children left unattended in the vehicle

If children are left unsupervised in the vehi‐ cle, they could, in particular:

Open doors, thereby endangering other persons or road users.

Get out and be struck by oncoming traf‐ fic.

Operate vehicle equipment and become trapped, for example.

In addition, the children could also set the vehicle in motion, for example by:

Releasing the parking brake.

Changing the transmission position.

Starting the vehicle.

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

Keep the vehicle SmartKey out of reach of children.

WARNING Danger to life due to expo‐ sure to extreme heat or cold in the vehi‐ cle

If people, particularly children, are exposed to extreme temperatures over an extended period of time, there is a risk of serious injury or danger to life.

Never leave persons, children in partic‐ ular, unattended in the vehicle.

Occupant safety

WARNING Risk of accident and injury due to children left unattended in the vehicle

If children are traveling in the vehicle, they could, in particular:

Open doors, thereby endangering other persons or road users.

Get out and be struck by oncoming traf‐ fic.

Operate vehicle equipment and become trapped, for example.

Always activate the installed child safety locks if children are traveling in the vehicle.

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

There are child safety locks for the rear doors and the rear passenger compartment side win‐ dows.

The child safety lock on the rear doors secures each door separately. The doors can no longer be opened from the inside.

Press the lever in direction 1 (activate) or

2 (deactivate).

Make sure that the child safety locks are working properly.

Activating or deactivating the child safety lock for the rear side windows

To activate/deactivate: press button 2.

The rear side window can be opened or closed in the following cases:

Indicator lamp 1 is lit: via the switch on the driver's door

Occupant safety

Indicator lamp 1 is off: via the switch on the corresponding rear door or driver's door

Notes on pets in the vehicle

WARNING Risk of accident and injury due to animals left unsecured or unat‐ tended in the vehicle

If you leave animals in the vehicle unatten‐ ded or unsecured, they could possibly press buttons or switches.

An animal may:

Activate vehicle equipment and become trapped, for example

Switch systems on or off and endanger other road users

Unsecured animals may be thrown around in the vehicle in the event of an accident or sudden steering and braking maneuvers and injure vehicle occupants in the process.

Never leave animals in the vehicle unat‐ tended.

Always correctly secure animals while driving, e.g. using a suitable animal car‐ rier.

Occupant safety

SmartKey

Overview of SmartKey functions

WARNING Risk of accident and injury due to children left unattended in the vehicle

If children are left unsupervised in the vehi‐ cle, they could, in particular:

Open doors, thereby endangering other persons or road users.

Get out and be struck by oncoming traf‐ fic.

Operate vehicle equipment and become trapped, for example.

In addition, the children could also set the vehicle in motion, for example by:

Releasing the parking brake.

Changing the transmission position.

Starting the vehicle.

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

Keep the vehicle SmartKey out of reach of children.

NOTE Damage to the SmartKey caused by magnetic fields

Keep the SmartKey away from strong magnetic fields.

Locks

Indicator lamp

Unlocks

Opens the trunk lid

Panic alarm

If indicator lamp 2 does not light up after pressing the Ü or ß button, the bat‐ tery is weak or possibly discharged. Replace the battery as soon as possible.

Replace the SmartKey battery (/ page 68).

The SmartKey locks and unlocks the following components:

Doors

Fuel filler flap

Trunk lid

If the vehicle is not opened within approximately 40 seconds after unlocking, it locks again. Antitheft protection is armed again.

Do not keep the SmartKey together with elec‐ tronic devices or metal objects. This can affect the SmartKey's functionality.

Opening and closing

Activating/deactivating the acoustic locking verification signal

Multimedia system:

Activate or deactivate Acoustic Lock.

Activating/deactivating the panic alarm

Requirements:

The ignition is switched off.

To activate: press button 1 for approx‐ imately one second. A visual and audible alarm is triggered.

To deactivate: briefly press button 1 again.

Press the start/stop button on the cockpit, with the SmartKey inside the vehicle.

Changing the unlocking settings

Possible unlocking functions of the SmartKey:

Central unlocking

Unlocking the driver's door and fuel filler flap

To switch between settings: press the

Ü and ß buttons simultaneously for approximately six seconds until the indicator lamp flashes twice.

Options if the unlocking function for the driver's door and fuel filler flap has been selected:

To unlock the vehicle centrally: press the

Ü button twice.

Vehicles with KEYLESS-GO: if you touch the inner surface of the door handle on the driver's door, only the driver's door and fuel filler flap are unlocked.

Deactivating the SmartKey functions

If you do not use the vehicle or a SmartKey for an extended period of time, you can reduce the energy consumption of the respective SmartKey. To do so, deactivate the SmartKey functions.

To deactivate: press the ß button on the SmartKey twice in quick succession. The SmartKey indicator lamp flashes twice briefly and lights up once.

To activate: press any button on the Smart‐ Key.

When the vehicle is started with the Smart‐ Key in the storage compartment of the cen‐ ter console, the SmartKey functions are automatically activated (/ page 12 7).

Opening and closing

Removing/inserting the emergency key

Removing the emergency key

Press release knob 1. Emergency key 2 is pushed out slightly.

Pull out emergency key 2 until it engages in the intermediate position.

Depending on the vehicle's equipment, the intermediate position is not available.

Press release knob 1 again and fully remove emergency key 2.

Inserting the emergency key

Press release knob 1.

Insert emergency key 2 to the intermediate position or fully until it engages.

You can use the intermediate position of emergency key 2 to attach the SmartKey to a key ring.

Replacing the SmartKey battery

DANGER Serious damage to health caused by swallowing batteries

Batteries contain toxic and corrosive sub‐ stances. Swallowing batteries may cause serious damage to health.

There is a risk of fatal injury.

Keep batteries out of the reach of chil‐ dren.

If batteries are swallowed, seek medical attention immediately.

ENVIRONMENTAL NOTE Environmental damage due to improper disposal of bat‐ teries

Batteries contain pollutants. It is illegal to dispose of them with the household rubbish.

Dispose of batteries in an environmentally responsible manner. Take discharged batteries to a qualified specialist workshop or to a collection point for used batteries.

Requirements:

You require a CR 2032 3 V cell battery.

Mercedes-Benz recommends that you have the battery replaced at a qualified specialist work‐ shop.

Opening and closing

Remove the emergency key (/ page 68).

Press release knob 2 down fully and slide cover 1 in the direction of the arrow.

Fold out cover 1 in the direction of the arrow and remove.

Remove battery compartment 3 and take out the discharged battery.

Insert the new battery into battery compart‐ ment 3. Observe the positive pole marking in the battery compartment and on the bat‐ tery when doing this.

Push in battery compartment 3.

Re-attach cover 1 and push it until it engages.

Problems with the SmartKey, troubleshoot‐ ing

You can no longer lock or unlock the vehicle

Possible causes:

The SmartKey battery is weak or discharged.

The SmartKey is faulty.

Check the battery using the indicator lamp (/ page 66).

Replace the SmartKey battery, if necessary (/ page 68).

Use the emergency key to lock or unlock (/ page 72).

Have the SmartKey checked at a qualified specialist workshop.

There is interference from a powerful radio signal source

The SmartKey function is impaired by, for exam‐ ple:

High voltage power lines

Mobile phones

Electronic devices (notebooks, tablets)

Shielding due to metal objects or induction loops for electrical gate systems or auto‐ matic barriers

Make sure that there is sufficient distance between the SmartKey and the potential source of interference.

You have lost a SmartKey

Have the SmartKey deactivated at a qualified specialist workshop.

If necessary, have the mechanical lock replaced as well.

Opening and closing

Doors

Unlocking/opening the doors from the inside

To unlock and open a front door: pull door handle 1.

To unlock a rear door: pull the rear door handle.

To open a rear door: pull the rear door han‐ dle again.

Centrally locking and unlocking the vehicle from the inside

To unlock: press button 1.

To lock: press button 2. The red indicator lamp on button 2 on the driver or front passenger door lights up once the vehicle is locked.

You can also lock and unlock the vehicle with the buttons on the front passenger door and rear doors.

This does not lock or unlock the fuel filler flap.

The vehicle is not unlocked:

If you have locked the vehicle using the SmartKey.

If you have locked the vehicle using KEY‐ LESS-GO.

Locking/unlocking the vehicle with KEY‐ LESS-GO

Requirements:

The SmartKey is outside the vehicle.

The distance between the SmartKey and the vehicle does not exceed 3 ft (1 m).

The driver's door and the door at which the door handle is used are closed.

Opening and closing

To unlock the vehicle: touch the inner sur‐ face of the door handle.

To lock the vehicle: touch sensor surface

1 or 2.

Convenience closing: touch recessed sen‐ sor surface 2 until the closing process has been completed.

Further information on convenience closing (/ page 79).

If you open the trunk lid from outside, the trunk lid is automatically unlocked.

Problems with KEYLESS-GO, troubleshooting

You can no longer lock or unlock the vehicle using KEYLESS-GO

Possible causes:

The SmartKey functions have been deactiva‐ ted.

The SmartKey battery is weak or discharged.

The SmartKey is faulty.

Activate the SmartKey functions (/ page 67).

Check the battery using the indicator lamp (/ page 66).

Replace the SmartKey battery, if necessary (/ page 68).

Use the emergency key to lock or unlock (/ page 72).

Have the vehicle and SmartKey checked at a qualified specialist workshop.

There is interference from a powerful radio signal source

The KEYLESS-GO function is impaired by, for example:

High voltage power lines

Mobile phones

Electronic devices (notebooks, tablets)

Shielding due to metal objects or induction loops for electrical gate systems or auto‐ matic barriers

Make sure that there is sufficient distance between the SmartKey and the potential source of interference.

Activating/deactivating the automatic lock‐ ing feature

The vehicle is locked automatically when the ignition is switched on and the wheels are turn‐ ing faster than walking pace.

Opening and closing

To activate: press and hold button 2 for approximately five seconds until an acoustic signal sounds.

To deactivate: press and hold button 1 for approximately five seconds until an acoustic signal sounds.

The red indicator lamp on button 2 lights up once the vehicle is locked.

In the following situations, there is a danger of being locked out when the function is activated:

While the vehicle is being tow started/ pushed.

If the vehicle is being tested on a roller dyna‐ mometer.

Locking/unlocking the vehicle with the emergency key

Locking/unlocking the driver's door with the emergency key

If you wish to lock the vehicle entirely using the emergency key, first press the button for locking from the inside while the driver's door is open. Then proceed to lock the driv‐ er's door using the emergency key.

Remove the emergency key (/ page 68).

Insert the emergency key as far as it will go into opening 1 in the cover.

Pull and hold the door handle.

Pull the cover on the emergency key as straight as possible away from the vehicle until it releases.

Release the door handle.

Opening and closing

To unlock: turn the emergency key counterclockwise to position 1.

To lock: turn the emergency key clockwise to position 1.

Carefully press the cover onto the lock cylin‐ der until it engages and is seated firmly.

Locking the front passenger door and rear doors

Insert a suitable object, e.g. the emergency key, into opening 1 on the door lock.

To lock the left-hand side of the vehicle:

turn the emergency key counter-clockwise as far as it will go.

To lock the right-hand side of the vehicle:

turn the emergency key clockwise as far as it will go.

If the locked door is then closed, it can no longer be opened from the outside.

Trunk

Opening the trunk lid

DANGER Risk of exhaust gas poisoning

Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the vehicle interior if the trunk lid is open when the engine is running, especially if the vehicle is in motion.

Always switch off the engine before opening the trunk lid.

Never drive with the trunk lid open.

Opening and closing

NOTE Damage to the trunk lid by obsta‐ cles above the vehicle

The trunk lid swings upwards when it is opened.

Therefore, make sure that there is suffi‐ cient clearance above the trunk lid.

Pull the trunk lid handle.

Vehicles with HANDS-FREE ACCESS: Make a kicking movement with your foot below the bumper (/ page 75).

Pull trunk lid remote operating switch 1.

Press and hold the p button on the SmartKey.

Closing the trunk lid

WARNING Risk of injury from unsecured items in the vehicle

If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip over or be thrown around and thereby hit vehicle occupants.

There is a risk of injury, particularly in the event of sudden braking or a sudden change in direction.

Always stow objects in such a way that they cannot be thrown around.

Before the journey, secure objects, lug‐ gage or loads against slipping or tipping over.

Observe the notes on loading the vehicle.

Pull the trunk lid downwards using the han‐ dle recess and push it closed.

Opening and closing

HANDS-FREE ACCESS function

With HANDS-FREE ACCESS you can open the trunk lid by performing a kicking movement under the bumper.

Observe the notes when opening the trunk lid (/ page 73).

WARNING Risk of burns caused by a hot exhaust system

The vehicle exhaust system can become very hot. If you use HANDS-FREE ACCESS, you could burn yourself by touching the exhaust system.

Always ensure that you only make a kicking movement within the detection range of the sensors.

NOTE Damage to the vehicle caused by unintentionally opening the trunk lid

When using an automatic car wash

When using a high pressure cleaner

Deactivate KEYLESS-GO or make sure that the SmartKey located is at least 10 ft (3 m) away from the vehicle in such situations.

When making the kicking movement, make sure that you are standing firmly on the ground. You could otherwise lose your balance, e.g. on ice.

Observe the following notes:

The SmartKey is behind the vehicle.

Stand at least 12 in (30 cm) away from the vehicle while performing the kicking move‐ ment.

Do not come into contact with the bumper while making the kicking movement.

Do not carry out the kicking movement too slowly.

The kicking movement must be towards the vehicle and back again.

Detection range of the sensors

Opening and closing

If several consecutive kicking movements are not successful, wait ten seconds.

System limits

The system may be impaired or may not function in the following cases:

The sensors are dirty, e.g. due to road salt or snow.

The kicking movement is made using a pros‐ thetic leg.

The trunk lid could be opened unintentionally, in the following situations:

A person's arms or legs are moving in the sensor detection range, e.g. when polishing the vehicle or picking up objects.

Objects are moved or placed behind the vehi‐ cle, e.g. tensioning straps or luggage.

Clamping straps, tarps or other coverings are pulled over the bumper.

A protective mat with a length reaching over the trunk sill down into the detection range of the sensors is used.

The protective mat is not secured correctly.

Work is being done on the trailer hitch, trail‐ ers or rear-mounted bicycle racks.

Deactivate the SmartKey functions (/ page 67 ) or do not carry the SmartKey about your person in such situations.

Unlocking and opening the trunk from inside with the emergency release

Requirements:

The 12 V vehicle battery is connected and charged.

Press emergency release button 1 briefly.

Opening and closing

Side windows

Opening and closing the side windows

WARNING Risk of entrapment when opening a side window

When opening a side window, parts of the body could be drawn in or become trapped between the side window and window frame.

When opening, make sure that nobody is touching the side window.

If someone is trapped, release the but‐ ton immediately or pull it in order to close the side window again.

WARNING Risk of becoming trapped when closing a side window

When closing a side window, body parts could be trapped in the closing area in the process.

When closing, make sure that no body parts are in the closing area.

If someone is trapped, release the but‐ ton immediately or press the button in order to reopen the side window.

WARNING Risk of becoming trapped when children operate the side windows

Children could become trapped if they oper‐ ate the side windows, particularly when unat‐ tended.

Activate the child safety lock for the rear passenger compartment side win‐ dows.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

Never leave children unattended in the vehicle.

Requirements:

The power supply or the ignition is switched on.

To close

To open

The buttons on the driver's door take prece‐ dence.

To start automatic operation: press the

W button beyond the point of resistance or pull and release it.

Opening and closing

To interrupt automatic operation: press or pull the W button again.

When the vehicle is switched off, you can con‐ tinue to operate the side windows.

This function is available for around four minutes or until a front door is opened.

Automatic reversing function of the side win‐ dows

If an obstacle impedes a side window during the closing process, the side window will open again automatically. The automatic reversing function is only an aid and is not a substitute for your attentiveness.

During the closing process, make sure that no body parts are in the closing area.

WARNING Risk of becoming trapped despite there being reversing protection on the side window

The reversing function does not react:

To soft, light and thin objects, e.g. fin‐ gers.

During resetting.

The reversing function cannot prevent some‐ one from becoming trapped in these situa‐ tions.

During the closing process, make sure that no body parts are in the closing area.

If someone becomes trapped, press the W button to open the side window again.

Convenience opening (ventilating the vehicle before starting a journey)

WARNING Risk of entrapment when opening a side window

When opening a side window, parts of the body could be drawn in or become trapped between the side window and window frame.

When opening, make sure that nobody is touching the side window.

Release the button immediately if somebody becomes trapped.

Press and hold the Ü button on the SmartKey.

The following functions are performed:

The vehicle is unlocked.

The side windows are opened.

The panoramic sliding roof is opened.

The seat ventilation of the driver's seat is switched on.

If the roller sunblind of the panoramic sliding sunroof is closed, the roller sunblind is opened first.

To interrupt convenience opening: release the Ü button.

To continue convenience opening: press and hold the Ü button again.

Opening and closing

Convenience closing (closing the vehicle from outside)

WARNING Risk of entrapment due to not paying attention during convenience closing

When the convenience closing feature is operating, parts of the body could become trapped in the closing area of the side win‐ dow and the sliding sunroof.

When the convenience closing feature is operating, monitor the entire closing process and make sure that no body parts are in the closing area.

Press and hold the ß button on the SmartKey.

The following functions are performed:

The vehicle is locked.

The side windows are closed.

The panoramic sliding roof is closed.

To interrupt convenience closing: release the ß button.

To close the roller sunblinds: press and hold the ß button again.

Convenience closing also functions with KEYLESS-GO (/ page 70).

Resolving problems with the side windows

WARNING Risk of becoming trapped or fatally injured if reversing protection is not activated

If you close a side window again immediately after it has been blocked, the side window will close with increased or maximum force. The reversing function is then not active and body parts may become trapped.

Make sure that no parts of the body are in the closing area.

To stop the closing process, release the button or press the button again to reopen the side window.

A side window cannot be closed and you can‐ not see the cause.

Check to see whether any objects are in the window guide.

Adjust the side windows.

Adjusting the side windows

If a side window is obstructed during closing and reopens again immediately:

Immediately after this, pull and hold the cor‐ responding button again until the side win‐ dow has closed and hold the button for at least one more second (re-adjustment). The side window will be closed without the automatic reversing function.

If the side window is obstructed again and reopens again immediately:

Immediately after this, pull and hold the cor‐ responding button again until the side win‐ dow has closed and hold the button for at

Opening and closing

least one more second (follow-up adjust‐ ment). The side window will be closed without the automatic reversing function.

The side windows cannot be opened or closed using the convenience opening fea‐ ture.

Possible cause:

The SmartKey battery is weak or discharged.

Check the battery using the indicator lamp (/ page 66).

Replace the SmartKey battery, if necessary (/ page 68).

Sliding sunroof

Opening and closing the sliding sunroof

The term "sliding sunroof" also refers to the panorama roof with power tilt/sliding panel.

WARNING Risk of becoming trapped when the sliding sunroof is being opened and closed

Body parts may become trapped in the range of movement.

During opening and closing, make sure that no body parts are in the range of movement.

Release the button immediately if somebody becomes trapped.

Briefly press the button in any direction during automatic operation. The opening or closing process will be stopped.

WARNING Risk of becoming trapped if the sliding sunroof is operated by chil‐ dren

Children operating the sliding sunroof could get caught in the moving parts, particularly if unattended.

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the key with you and lock the vehicle.

WARNING Risk of becoming trapped when the roller sunblind is being opened and closed

Body parts may become trapped between the roller sunblind and frame or sliding roof.

When opening or closing, make sure that no body parts are in the roller sun‐ blind's range of movement.

Release the button immediately if somebody becomes trapped.

Briefly press the button in any direction during automatic operation. The opening or closing process will be stopped.

Opening and closing

NOTE Malfunction due to snow and ice

Snow and ice may cause the sliding sunroof to malfunction.

Open the sliding sunroof only if it is free of snow and ice.

NOTE Damage caused by protruding objects

Objects that protrude from the sliding sun‐ roof may damage the sealing strips.

Do not allow anything to protrude from the sliding sunroof.

NOTE Important points to remember when a roof luggage rack is installed

When a roof luggage rack is installed, raising or opening the sliding sunroof may be limi‐ ted.

Check whether the sliding sunroof can be raised or opened when a roof lug‐ gage rack is installed.

If in doubt, do not raise or open the sliding sunroof.

To raise

To open

To close/lower

Use the 3 button to operate the panorama roof with power tilt/sliding panel and the roller sunblind.

The panorama roof with power tilt/sliding panel can be operated only when the roller sunblind is open.

Check whether the sliding sunroof can be raised or opened when a roof luggage rack is installed.

To start automatic operation: press the

3 button beyond the point of resistance or pull and release it.

To interrupt automatic operation: briefly press the 3 button in any direction. The opening/closing process will be stop‐ ped.

Vehicles with a panorama roof with power tilt/sliding panel: The automatic raising feature

is available only when the sliding sunroof is closed or raised.

Opening and closing

Automatic reversing function of the sliding sunroof

If an obstacle obstructs the sliding sunroof dur‐ ing the closing process, the sliding sunroof will open again automatically. The automatic revers‐ ing function is only an aid and is not a substitute for your attentiveness.

During the closing process, make sure that no body parts are in the closing area.

WARNING Risk of becoming trapped despite the reversing function being active

In particular, the reversing function does not react:

To soft, light and thin objects, e.g. fin‐ gers.

Towards the end of the closing proce‐ dure.

During resetting.

During the closing process, make sure that no body parts are in the closing area.

Release the button immediately if somebody becomes trapped.

Briefly press the button in any direction during automatic operation. The closing process will be stopped.

Automatic reversing function of the roller sunblind

If an obstacle obstructs the roller sunblind dur‐ ing the closing process, the roller sunblind will open again automatically. The automatic revers‐ ing function is only an aid and is not a substitute for your attentiveness.

When closing the roller sunblind, make sure that no body parts are in the range of move‐ ment.

WARNING Risk of becoming trapped despite reversing function

In particular, the reversing function does not react to soft, light and thin objects, e.g. fin‐ gers.

When closing the roller sunblind, make sure that no body parts are in the range of movement.

Release the button immediately if somebody becomes trapped.

Briefly press the button in any direction during the automatic closing process. The closing process will be stopped.

Automatic functions of the sliding sunroof

The term "sliding sunroof" also refers to the panorama roof with power tilt/sliding panel.

Rain closing function when driving Vehicles with a panorama roof with power tilt/sliding panel: If it starts to rain, the raised

sliding sunroof will automatically be lowered while the vehicle is in motion.

Automatic lowering function Vehicles with a panorama roof with power tilt/sliding panel: If the sliding sunroof is raised

at the rear, it will automatically be lowered

Opening and closing

slightly at higher speeds. At low speeds, it will be raised again automatically.

WARNING Risk of becoming trapped by automatic lowering of the sliding sunroof

At higher speeds, the raised sliding sunroof will automatically be lowered slightly at the rear.

Make sure that nobody reaches into the sliding sunroof's range of movement while the vehicle is in motion.

If somebody becomes trapped, briefly push the sliding sunroof button for‐ wards or backwards.

By pushing or pulling the 3 button, you can interrupt the automatic functions: "Rain closing function when driving" and "Auto‐ matic lowering".

Rectifying problems with the sliding sunroof

WARNING Risk of becoming trapped or fatal injuries when the sliding sunroof is closed again

If the sliding sunroof is closed again immedi‐ ately after it has been blocked or reset, it will close with increased force.

Make sure that no parts of the body are in the closing area.

Release the button immediately if somebody becomes trapped.

Briefly press the button in any direction during the automatic closing process. The closing process will be stopped.

The sliding sunroof cannot be closed and you cannot see the cause.

The term "sliding sunroof" also refers to the panorama roof with power tilt/sliding panel.

If the sliding sunroof is obstructed during closing and reopens again slightly:

Immediately after automatic reversing, pull and hold the 3 button down again to the point of resistance until the sliding sunroof is closed. The sliding sunroof will be closed with increased force.

If the sliding sunroof is obstructed again and opens again slightly:

Repeat the previous step. The sliding sunroof will be closed again with increased force.

Vehicles with a panorama roof with power tilt/sliding panel: The sliding sunroof or the roller sunblind is not operating smoothly.

Reset the sliding sunroof and the roller sun‐ blind.

Resetting the sliding sunroof and the roller sunblind

Pull and hold the 3 button little by little until the sliding sunroof is fully closed.

Pull and hold the 3 button little by little until the roller sunblind is fully closed.

Opening and closing

Use automatic operation to fully open and then close the sliding sunroof.

Anti-theft protection

Function of the immobilizer

The immobilizer prevents your vehicle from being started without the correct SmartKey.

The immobilizer is automatically activated when the ignition is switched off and deactivated when the ignition is switched on.

When leaving the vehicle, always take the Smart‐ Key with you and lock the vehicle. Anyone can start the engine if a valid SmartKey has been left inside the vehicle.

In the event the engine cannot be started (yet the vehicle’s battery is charged), the system is not operational. Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in the USA) or 1-800-387-0100 (in Canada).

ATA (anti-theft alarm system)

Function of the ATA system

If the ATA system is armed, a visual and audible alarm is triggered in the following situations:

When a door is opened

When the trunk lid is opened

When the hood is opened

When the interior motion sensor is triggered (/ page 86)

When the tow-away alarm is triggered (/ page 85)

The ATA system is armed automatically after approximately ten seconds in the following situa‐ tions:

After locking the vehicle with the SmartKey

After locking the vehicle using KEYLESS-GO

Indicator lamp 1 flashes when the ATA system is armed.

The ATA system is deactivated automatically in the following situations:

After unlocking the vehicle with the Smart‐ Key

After unlocking the vehicle using KEYLESSGO

Opening and closing

After pressing the start/stop button with the SmartKey in the storage compartment (/ page 127)

When the Mercedes‑Benz emergency call system is active and the alarm stays on for more than 30 seconds, a message is auto‐ matically sent to the Customer Assistance Center (/ page 239).

In the case of severe battery discharging, the anti-theft alarm system is automatically deactivated to facilitate the next engine start.

Deactivating the ATA

Press the Ü, ß or p button on the SmartKey.

Press the start/stop button with the Smart‐ Key in the marked space (/ page 127)

Deactivating the alarm using KEYLESS-GO

Grasp the outside door handle with the SmartKey outside the vehicle.

Function of the tow-away alarm

This function may not be available in all countries.

An audible and visual alarm is triggered if an alteration to your vehicle's angle of inclination is detected while the tow-away alarm is armed.

The tow-away alarm is automatically armed after approximately 60 seconds:

After locking the vehicle with the SmartKey

After locking the vehicle using KEYLESS-GO

The tow-away alarm is only armed when the fol‐ lowing components are closed:

Doors

Trunk lid

The tow-away alarm is automatically deactiva‐ ted:

After pressing the Ü or p button on the SmartKey

After pressing the start/stop button with the SmartKey in the storage compartment (/ page 127)

After unlocking the vehicle using KEYLESSGO

When using HANDS-FREE ACCESS

Information on collision detection on a parked vehicle (/ page 150).

Arming/disarming the tow-away alarm

Multimedia system:

Arm or disarm Tow-away Protection.

The tow-away alarm is armed again in the follow‐ ing cases:

The vehicle is unlocked again.

A door is opened.

The vehicle is locked again.

If quick access is unavailable, select the

Vehicle submenu in the Settings main menu

to arm or disarm the tow-away alarm.

Opening and closing

Function of the interior motion sensor

This function may not be available in all countries.

When the interior motion sensor is armed, a vis‐ ual and audible alarm is triggered if movement is detected in the vehicle interior.

The interior motion sensor is armed automati‐ cally after approximately ten seconds:

After locking the vehicle with the SmartKey

After locking the vehicle using KEYLESS-GO

The interior motion sensor is only armed when the following components are closed:

Doors

Trunk lid

The interior motion sensor is automatically deac‐ tivated:

After pressing the Ü or p button on the SmartKey

After pressing the start/stop button with the SmartKey in the storage compartment (/ page 127)

After unlocking the vehicle using KEYLESSGO

When using HANDS-FREE ACCESS

The following situations can lead to a false alarm:

Moving objects such as mascots in the vehi‐ cle interior

When the side window is open

When the panoramic sliding sunroof is open

Arming/deactivating the interior motion sen‐ sor

Multimedia system:

Activate or deactivate Interior Motion Sen-

sor.

The interior motion sensor is activated again in the following cases:

The vehicle is unlocked again.

A door is opened.

The vehicle is locked again.

If quick access is unavailable, select the

Vehicle menu under Settings to activate or

deactivate the interior motion sensor.

Opening and closing

Notes on the correct driver's seat position

WARNING Risk of accident due to adjusting vehicle settings while the vehi‐ cle is in motion

You could lose control of the vehicle in the following situations in particular:

If you adjust the driver's seat, the head restraints, the steering wheel or the mir‐ ror while the vehicle is in motion.

If you fasten your seat belt while the vehi‐ cle is in motion.

Before starting the engine: adjust the driver's seat, the head restraints, the steering wheel and the mirror and fas‐ ten your seat belt.

Ensure the following when adjusting steering wheel 1, seat belt 2 and driver's seat 3:

You are sitting as far away from the driver's airbag as possible, taking the following points into consideration.

You are sitting in an upright position

Your thighs are slightly supported by the seat cushion

Your legs are not fully extended and you can depress the pedals properly

The back of your head is supported at eye level by the center of the head restraint

You can hold the steering wheel with your arms slightly bent

You can move your legs freely

You can see all the displays on the instru‐ ment cluster clearly

You have a good overview of the traffic con‐ ditions

Your seat belt sits snugly against your body and passes across the center of your shoul‐ der and across your hips in the pelvic area

Seats and stowing

Seats

Adjusting the front seat mechanically (with‐ out Seat Comfort Package)

WARNING Risk of becoming trapped if the seats are adjusted by children

Children could become trapped if they adjust the seats, particularly when unattended.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

Never leave children unattended in the vehicle.

WARNING Risk of becoming trapped when adjusting the seat

When you adjust a seat, you or other vehicle occupants could become trapped, e.g. on the seat guide rail.

When adjusting a seat, make sure that no one has any part of their body within the sweep of the seat.

Observe the safety notes on "Airbags" and "Chil‐ dren in the vehicle".

WARNING Risk of accident due to the driver's seat not being engaged

The driver's seat may move unexpectedly while driving.

This could cause you to lose control of the vehicle.

Always make sure that the driver's seat is engaged before starting the vehicle.

WARNING Risk of accident due to adjusting vehicle settings while the vehi‐ cle is in motion

You could lose control of the vehicle in the following situations in particular:

If you adjust the driver's seat, the head restraints, the steering wheel or the mir‐ ror while the vehicle is in motion.

If you fasten your seat belt while the vehi‐ cle is in motion.

Before starting the engine: adjust the driver's seat, the head restraints, the steering wheel and the mirror and fas‐ ten your seat belt.

WARNING Risk of becoming trapped if the seat height is adjusted carelessly

If you adjust the seat height carelessly, you or other vehicle occupants could be trapped and thereby injured.

Children in particular could accidentally press the electrical seat adjustment buttons and become trapped.

While moving the seats, make sure that hands or other body parts do not get under the lever assembly of the seat adjustment system.

Seats and stowing

WARNING Risk of injury due to head restraints not being installed or being adjusted incorrectly

If head restraints have not been installed or have not been adjusted correctly, there is an increased risk of injury in the head and neck area, e.g. in the event of an accident or when braking.

Always drive with the head restraints installed.

Before driving off, make sure for every vehicle occupant that the center of the head restraint supports the back of the head at about eye level.

Do not interchange the head restraints of the front and rear seats. Otherwise, you will not be able to adjust the height and angle of the head restraints correctly.

Adjust the head restraint fore-and-aft position so that it is as close as possible to the back of your head.

WARNING Risk of injury or death due to an incorrect seat position

The seat belt does not offer the intended level of protection if you have not moved the seat backrest to an almost vertical position.

You could slip beneath the seat belt and injure yourself.

Adjust the seat properly before com‐ mencing your journey.

Always ensure that the seat backrest is in an almost vertical position and that the shoulder belt is routed across the center of your shoulder.

To adjust the seat fore-and-aft position:

lift lever 1 and slide the seat into the desired position.

Make sure that the seat is engaged.

To adjust the seat height: push or pull lever

2 until the desired position has been

reached.

Seats and stowing

To adjust the seat backrest inclination:

turn handwheel 3 forwards and backwards until the desired position has been reached.

Adjusting the front seat mechanically (with Seat Comfort Package)

To adjust the seat cushion length: lift lever

1 and slide the front section of the seat

cushion forwards or backwards.

To adjust the seat fore-and-aft position:

lift lever 2 and slide the seat into the desired position.

Make sure that the seat is engaged.

To adjust the seat cushion inclination:

turn handwheel 3 forwards and backwards until the desired position has been reached.

To adjust the seat height: push or pull lever

4 until the desired position has been

reached.

To adjust the seat backrest inclination:

turn handwheel 5 forwards and backwards until the desired position has been reached.

Adjusting the front seat electrically

Seat backrest inclination

Seat height

Seat cushion inclination

Seat fore-and-aft position

Save the settings with the memory function (/ page 98).

Seats and stowing

Adjusting the 4-way lumbar support

Higher

Softer

Lower

Firmer

Using buttons 1 to 4, adjust the contour of the backrest individually to suit your back.

Head restraints

Adjusting the front seat head restraints man‐ ually

WARNING Risk of accident due to adjusting vehicle settings while the vehi‐ cle is in motion

You could lose control of the vehicle in the following situations in particular:

If you adjust the driver's seat, the head restraints, the steering wheel or the mir‐ ror while the vehicle is in motion.

If you fasten your seat belt while the vehi‐ cle is in motion.

Before starting the engine: adjust the driver's seat, the head restraints, the steering wheel and the mirror and fas‐ ten your seat belt.

WARNING Risk of injury due to head restraints not being installed or being adjusted incorrectly

If head restraints have not been installed or have not been adjusted correctly, there is an increased risk of injury in the head and neck area, e.g. in the event of an accident or when braking.

Always drive with the head restraints installed.

Before driving off, make sure for every vehicle occupant that the center of the head restraint supports the back of the head at about eye level.

Do not interchange the head restraints of the front and rear seats. Otherwise, you will not be able to adjust the height and angle of the head restraints correctly.

Adjust the head restraint fore-and-aft position so that it is as close as possible to the back of your head.

Seats and stowing

To raise: pull the head restraint up.

To lower: press release knob 1 in the direc‐ tion of the arrow and push the head restraint down.

To move forwards: press release knob 2 and pull the head restraint forwards.

To move backwards: press release knob 2 and push the head restraint backwards.

Adjusting the head restraints of the rear seats mechanically

To raise: pull the head restraint up.

To lower: press release knob 1 in the direc‐ tion of the arrow and push the head restraint down.

Installing/removing the rear seat head restraints

Removing

Release the rear seat backrest and fold it for‐ wards slightly (/ page 101).

Pull the head restraint upwards as far as it will go.

Seats and stowing

Push release knob 1 in the direction of the arrow and pull out the head restraint.

Installing

Insert the head restraint such that the notches on the bar are on the left when viewed in the direction of travel.

Push the head restraint down until it engages.

Fold the rear seat backrest back until it engages.

Configuring the seat settings

Multimedia system:

Adjusting the backrest contour in the lumbar region of the seat backrest (lumbar)

Select Lumbar.

Select the settings Z for the desired seat.

Adjust the air cushions.

Adjusting the backrest side bolsters

Select Side Bolsters.

Adjust the air cushion for the desired seat.

Selecting the massage program for the front seats

Multimedia system:

Select Wave Massage or Pulsating Massage.

Start the program for the desired seat ;.

To set the massage intensity: switch High

Intensity on or off .

Resetting seat settings

Multimedia system:

Select ß for the desired seat.

Confirm the prompt.

Switching seat heating on/off

WARNING Risk of burns due to repeat‐ edly switching on the seat heating

Repeatedly switching on the seat heating can cause the seat cushion and seat backrest padding to become very hot.

In particular, the health of persons with limi‐ ted temperature sensitivity or a limited ability to react to high temperatures may be affec‐ ted or they may even suffer burn-like injuries.

Do not repeatedly switch on the seat heating.

To protect against overheating, the seat heating may be temporarily deactivated after it is switched on repeatedly.

NOTE Damage to the seats caused by objects or documents when the seat heating is switched on

When the seat heating is switched on, over‐ heating may occur due to objects or docu‐

Seats and stowing

ments placed on the seats, e.g. seat cush‐ ions or child seats. This could cause damage to the seat surface.

Make sure that no objects or docu‐ ments are on the seats when the seat heating is switched on.

Requirements:

The power supply is switched on.

Press button 1 repeatedly until the desired heating level is set. Depending on the heating level, up to three indicator lamps will light up. If all indicator lamps are off, the seat heating is switched off.

The seat heating will automatically switch down from the three heating levels after 8, 10 and 20 minutes until the seat heating switches off.

Switching the seat ventilation on/off

Requirements:

The power supply is switched on.

Press button 1 repeatedly until the desired blower setting has been reached. Depending on the blower setting, up to three indicator lamps will light up. If all indicator lamps are off, the seat ventilation is switched off.

Seats and stowing

Steering wheel

Adjusting the steering wheel mechanically

WARNING Risk of accident due to adjusting vehicle settings while the vehi‐ cle is in motion

You could lose control of the vehicle in the following situations in particular:

If you adjust the driver's seat, the head restraints, the steering wheel or the mir‐ ror while the vehicle is in motion.

If you fasten your seat belt while the vehi‐ cle is in motion.

Before starting the engine: adjust the driver's seat, the head restraints, the steering wheel and the mirror and fas‐ ten your seat belt.

WARNING Risk of entrapment for chil‐ dren when adjusting the steering wheel

Children could injure themselves if they adjust the steering wheel.

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

To unlock: push release lever 1 down as far as it will go.

Adjust height 2 and distance 3 to the steering wheel.

To lock: push release lever 1 up as far as it will go.

Check and make sure that the steering col‐ umn is locked by moving the steering wheel.

Switching the steering wheel heating on/off

Requirements:

The ignition is switched on.

Seats and stowing

Push the switch into position 1 or 2. If indicator lamp 3 lights up, the steering wheel heating is switched on.

When you switch the ignition off, the steering wheel heating switches off.

Easy entry and exit feature

Using the easy entry and exit feature

WARNING Risk of accident when pulling away during the adjustment process for the easy exit feature

You could lose control of the vehicle.

Always wait until the adjustment proc‐ ess is complete before pulling away.

WARNING Risk of becoming trapped during adjustment of the easy entry and exit feature

You and other vehicle occupants could become trapped.

Ensure that no-one has any body parts in the range of movement of the seat.

If there is a risk of becoming trapped by the driver's seat:

Press the seat adjustment switch. The adjustment process will be stop‐ ped.

You can stop the adjustment process by press‐ ing one of the memory function position switches.

WARNING Risk of becoming trapped if children activate the easy entry and exit feature‑

Children could become trapped if they acti‐ vate the easy entry‑ and exit feature, particu‐ larly when unattended.

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

Seats and stowing

When the easy entry and exit feature is active, the driver's seat will move backwards and the backrest will be moved to a steeper position when:

You switch the ignition off with the driver's door open.

You open the driver's door with the ignition switched off.

The driver's seat will then move backwards only if it is not already at the rear of the seat adjustment range. The seat backrest will then move forwards only if it is not already at the front of the backrest adjustment range.

The driver's seat will move back to the last drive position when:

You switch the ignition on with the driver's door closed.

You close the driver's door with the ignition switched on.

The last drive position will be saved when:

You switch the ignition off.

You call up the seat settings via the memory function.

You save the seat settings via the memory function.

Setting the easy entry and exit feature

Multimedia system:

Automatic Seat Adjustment

Easy Entry/Exit

Activate or deactivate the function.

Memory function

Function of the memory function

WARNING Risk of an accident if the memory function is used while driving

If you use the memory function on the driv‐ er's side while driving, you could lose control of the vehicle as a result of the adjustments being made.

Only use the memory function on the driver's side when the vehicle is station‐ ary.

WARNING Risk of entrapment when set‐ ting the seat with the memory function

When the memory function adjusts the seat, you and other vehicle occupants – particu‐ larly children – could become trapped.

During the adjustment process of the memory function, make sure that no one has any body parts in the sweep of the seat.

If someone becomes trapped, press a preset position button or seat adjust‐ ment switch immediately.

WARNING Risk of entrapment if the memory function is activated by children

Children could become trapped if they acti‐ vate the memory function, particularly when unattended.

Seats and stowing

Never leave children unattended in the vehicle.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle.

You can use the memory function when the igni‐ tion is switched off. Seat adjustments for up to three people can be stored and called up using the memory function.

You can save settings for the following systems:

Seat

Seat contour

Outside mirrors

Head-up Display

Operating the memory function

Storing

Set the desired position for all systems.

Briefly press memory button V and then press preset position 4, T or U within three seconds.

To call up: press and briefly hold one of pre‐ set position buttons 4, T or U. After releasing the button, all systems are moved into the stored position.

Stowage areas

Notes on loading the vehicle

DANGER Risk of exhaust gas poisoning

Always switch off the engine before opening the trunk lid.

Never drive with the trunk lid open.

WARNING Risk of injury from unsecured items in the vehicle

If objects, luggage or loads are not secured or not secured sufficiently, they could slip,

Seats and stowing

Mercedes Benz A-Class (2021) Owner’s Manual

Specifications and Main Features

Frequently Asked Questions

User Manual