Daimler AG: Not to be reprinted, translated
or otherwise reproduced, in whole or in part,
without written permission from Daimler AG.
Vehicle manufacturer
Daimler AG
Mercedesstraße 137
70327 Stuttgart
Germany
Environmental note
H
Environmental notes provide you with information on environmentally aware actions or
disposal.
Notes on material damage alert you to
!
dangers that could lead to damage to your
vehicle.
Practical tips or further information that
i
could be helpful to you.
As at 13.02.2014
Page 3
Welcome to the world of Mercedes-Benz
We urge you to read this Operator's Manual
carefully and familiarize yourself with the
vehicle before driving. For your own safety
and a longer vehicle life, follow the instructions and warning notices in this manual.
Ignoring them could result in damage to the
vehicle or personal injury to you or others.
Vehicle damage caused by failure to follow
instructions is not covered by the MercedesBenz Limited Warranty.
The equipment or product designation of your
vehicle may vary depending on:
R
model
R
order
R
country specification
R
availability
Mercedes-Benz therefore reserves the right
to introduce changes in the following areas:
R
design
R
equipment
R
technical features
The equipment in your vehicle may therefore
differ from that shown in the descriptions and
illustrations.
The following are integral components of the
vehicle:
R
Operator's Manual
R
Maintenance Booklet
R
Equipment-dependent supplements
Keep these documents in the vehicle at all
times. If you sell the vehicle, always pass all
documents on to the new owner.
You can also use the S‑Class Guide smartphone app:
Android™
Please note that the Mercedes-Benz Guides
App may not yet be available in your country.
The technical documentation team at
Daimler AG wishes you safe and pleasant
motoring.
Mercedes-Benz USA, LLC
Mercedes-Benz Canada, Inc.
A Daimler Company
Apple®iOS
2225840803
É2225840803IËÍ
Page 4
Page 5
Contents
3
Index ....................................................... 4
Daimler's declared policy is one of comprehensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmentally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected
by these factors:
R
operating conditions of your vehicle
R
your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
R
avoid short trips as these increase fuel consumption.
R
always make sure that the tire pressures
are correct.
R
do not carry any unnecessary weight.
R
remove roof racks once you no longer need
them.
R
a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
R
always have service work carried out at a
qualified specialist workshop.
Personal driving style:
R
do not depress the accelerator pedal when
starting the engine.
R
do not warm up the engine when the vehicle
is stationary.
R
drive carefully and maintain a safe distance
from the vehicle in front.
R
avoid frequent, sudden acceleration and
braking.
R
change gear in good time and use each gear
only up to Ô of its maximum engine speed.
R
switch off the engine in stationary traffic.
R
keep an eye on the vehicle's fuel consumption.
Environmental note
H
Have a defective high-voltage battery disposed of in an environmentally-responsible
manner. Contact a qualified specialist workshop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use an authorized Mercedes-Benz Center
for this purpose.
Environmental concerns and recommendations
Wherever the operating instructions require
you to dispose of materials, first try to regenerate or re-use them. Observe the relevant
environmental rules and regulations when
disposing of materials. In this way you will
help to protect the environment.
Genuine Mercedes-Benz parts
Environmental note
H
Daimler AG also supplies reconditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
parts.
Air bags and Emergency Tensioning Devi-
!
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
R
doors
R
door pillars
R
door sills
R
seats
R
cockpit
Page 27
Introduction
25
R
instrument cluster
R
center console
Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint systems.
Have aftermarket accessories installed at a
qualified specialist 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.
This could lead to malfunctions in safety-relevant systems, e.g. the brake system. Use
only genuine Mercedes-Benz parts or parts of
equal quality. Only use tires, wheels and
accessories that have been specifically
approved for your vehicle.
Genuine Mercedes-Benz parts are subject to
strict quality control. Every part has been specifically developed, manufactured or selected
for and adapted to Mercedes-Benz vehicles.
Only genuine Mercedes-Benz parts should
therefore be used.
More than 300,000 different genuine
Mercedes-Benz parts are available for
Mercedes-Benz models.
All authorized Mercedes-Benz Centers maintain a supply of genuine Mercedes-Benz parts
for necessary service and repair work. In addition, strategically located parts delivery centers provide quick and reliable parts service.
Always specify the vehicle identification number (VIN) when ordering genuine MercedesBenz parts (Y page 488).
Operator's Manual
Vehicle equipment
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of going to
print. Country-specific differences are possible. Bear in mind that your vehicle may not
feature all functions described here. This also
applies to safety-relevant systems and functions. The equipment in your vehicle may
therefore differ from that shown in the
descriptions and illustrations.
The original purchase agreement lists all systems installed in your vehicle.
Should you have any questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance
Booklet are important documents and should
be kept in the vehicle.
Service and vehicle operation
Warranty
The implied warranty for your vehicle applies
in accordance with the warranty terms and
conditions in the Service and Warranty Information booklet.
Your authorized Mercedes-Benz Center will
replace and repair all factory-installed parts in
accordance with the following warranty terms
and conditions:
R
New Vehicle Limited Warranty
R
Emission System Warranty
R
Emission Performance Warranty
R
California, Connecticut, Maine, Massachusetts, New York, Pennsylvania, Rhode
Island and Vermont Emission Control System Warranty
R
State warranty enforcement laws (lemon
laws)
Replacement parts and accessories are covered by the Mercedes-Benz Parts and Accessories warranties. These are available at any
authorized Mercedes-Benz Center.
Should you lose your Service and War-
i
ranty Information booklet, have an authorized Mercedes-Benz Center arrange for a
replacement. The new Service and Warranty Information booklet will be posted to
you.
Z
Page 28
Introduction
26
Information for customers in California
Under California law you may be entitled to a
replacement of your vehicle or a refund of the
purchase price or lease price, if after a reasonable number of repair attempts
Mercedes-Benz USA, LLC and/or its authorized repair or service facilities fail to fix one or
more substantial defects or malfunctions in
the vehicle that are covered by its express
warranty. During the period of 18 months
from original delivery of the vehicle or the
accumulation of 18,000 miles (approximately
29,000 km) on the odometer of the vehicle,
whichever occurs first, a reasonable number
of repair attempts is presumed for a retail
buyer or lessee if one or more of the following
occurs:
(1) the same substantial defect or malfunc-
tion results in a condition that is likely to
cause death or serious bodily injury if the
vehicle is driven, that defect or malfunction has been subject to repair two or
more times, and you have directly notified Mercedes-Benz USA, LLC in writing
of the need for its repair,
(2) the same substantial defect or malfunc-
tion of a less serious nature than category (1) has been subject to repair four or
more times and you have directly notified
us in writing of the need for its repair, or
(3) the vehicle is out of service by reason of
repair of the same or different substantial
defects or malfunctions for a cumulative
total of more than 30 calendar days.
Please send your written notice to:
Mercedes-Benz USA, LLC
Customer Assistance Center
One Mercedes Drive
Montvale, NJ 07645-0350
Maintenance
The Service and Warranty Booklet describes
all the necessary maintenance work which
should be done at regular intervals.
Always have the Service and Warranty Booklet with you when you bring the vehicle to an
authorized Mercedes-Benz Center. The service advisor will record every service for you
in the Service and Warranty Booklet.
Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program offers technical help in the event of a
breakdown. 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)
For additional information, refer to the
Mercedes-Benz Roadside Assistance Program brochure (USA) or the "Roadside Assistance" section in the Service and Warranty
booklet (Canada). You will find both in your
vehicle literature portfolio.
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) at the hotline number
1-800-FOR-MERCedes(1-800-367-6372) or
Customer Service Center (Canada) at
1-800-387-0100. This will assist us in contacting you in a timely manner should the
need arise.
If you sell your Mercedes, please leave the
entire literature in the vehicle so that it is
available to the next owner.
If you have purchased a used car, please send
us the "Notification of Used Car Purchase" in
Page 29
Introduction
27
the Service and Guarantee booklet or simply
call the Mercedes-Benz Customer Assistance
Center (USA) at the hotline number
1-800-FOR-MERCedes(1-800-367-6372) or
Customer Service (Canada) at
1-800-387-0100.
Vehicle operation outside the USA
and Canada
If you plan to operate your vehicle in foreign
countries, please be aware that:
R
service facilities or replacement parts may
not be readily available.
R
unleaded fuel for vehicles with a catalytic
converter may not be available. Leaded fuel
may cause damage to the catalytic converter.
R
the fuel may have a considerably lower
octane rating. Unsuitable fuel can cause
engine damage.
Some Mercedes-Benz models are available
for delivery in Europe through our European
Delivery Program. For details, consult an
authorized Mercedes-Benz Center or write to
one of the following addresses.
In the USA
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Operating safety
Important safety notes
WARNING
G
If you do not have the prescribed service/
maintenance work or any required repairs
carried out, this can result in malfunctions or
system failures. There is a risk of an accident.
Always have the prescribed service/maintenance work as well as any required repairs
carried out at a qualified specialist workshop.
WARNING
G
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is a risk
of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
WARNING
G
Modifications to electronic components, their
software as well as wiring can impair their
function and/or the function of other networked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as intended and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as electronic components or their software. You
should have all work to electrical and electronic equipment carried out at a qualified
specialist workshop.
If you make any changes to the vehicle electronics, the general operating permit is rendered invalid.
There is a risk of damage to the vehicle if:
!
R
the vehicle becomes stuck, e.g. on a high
curb or an unpaved road
R
you drive too fast over an obstacle, e.g. a
curb or a hole in the road
R
a heavy object strikes the undercarriage
or parts of the chassis
Z
Page 30
Introduction
28
In situations like this, the body, the undercarriage, chassis parts, wheels or tires
could be damaged without the damage
being visible. Components damaged in this
way can unexpectedly fail or, in the case of
an accident, no longer withstand the strain
they are designed to.
If the underbody paneling is damaged,
combustible materials such as leaves,
grass or twigs can gather between the
underbody and the underbody paneling. If
these materials come in contact with hot
parts of the exhaust system, they can catch
fire.
In such situations, have the vehicle
checked and repaired immediately at a
qualified specialist workshop. If on continuing your journey you notice that driving
safety is impaired, pull over and stop the
vehicle immediately, paying attention to
road and traffic conditions. In such cases,
consult a qualified specialist workshop.
Hybrid vehicles have a combustion engine
and an electric motor. The voltage supply for
operating the vehicle electrically is provided
by the vehicle's high-voltage electrical system.
DANGER
G
The vehicle's high voltage electrical system is
under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehicle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any highvoltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
The components of the vehicle's high-voltage
electrical system are marked with yellow
warning stickers. The cables of the vehicle's
high-voltage electrical system are orange in
color.
Vehicles with an electric motor generate
much less driving noise than vehicles with
internal combustion engines. As a result, your
vehicle may not be heard by other road users
in certain situations. This can happen, for
example, when you are parking and your vehicle is not seen by other road users. This
requires you to adopt a particularly anticipatory driving style, as it is necessary to allow
for the possibility that other road users may
behave erratically.
Declarations of conformity
Vehicle components which receive
and/or transmit radio waves
USA: "The wireless devices of this vehicle
comply 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: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the
following 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."
Diagnostics connection
The diagnostics connection is only intended
for the connection of diagnostic equipment at
a qualified specialist workshop.
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Introduction
29
WARNING
G
If you connect equipment to the diagnostics
connection in the vehicle, it may affect the
operation of the vehicle systems. As a result,
the operating safety of the vehicle could be
affected. There is a risk of an accident.
Do not connect any equipment to a diagnostics connection in the vehicle.
WARNING
G
Objects in the driver's footwell can restrict the
pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
If the engine is switched off and equip-
!
ment on the diagnostics connection is
used, the starter battery may discharge.
Connecting equipment to the diagnostics
connection can lead to emissions monitoring
information being reset, for example. This
may lead to the vehicle failing to meet the
requirements of the next emissions test during the main inspection.
Qualified specialist workshop
An authorized Mercedes-Benz Center is a
qualified specialist workshop. It has the necessary specialist knowledge, tools and qualifications to correctly carry out the work
required on your vehicle. This is especially the
case for work relevant to safety.
Observe the notes in the Maintenance Booklet.
Always have the following work carried out at
an authorized Mercedes-Benz Center:
R
work relevant to safety
R
service and maintenance work
R
repair work
R
alterations, installation work and modifications
R
work on electronic components
R
work on the hybrid system
Correct use
If you remove any warning stickers, you or
others could fail to recognize certain dangers.
Leave warning stickers in position.
Observe the following information when driving your vehicle:
R
the safety notes in this manual
R
the Technical Data section in this manual
R
traffic rules and regulations
R
laws and safety standards pertaining to
motor vehicles
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
immediately to have the problem diagnosed
and rectified. If the problem is not resolved to
your satisfaction, please discuss the problem
again with a Mercedes-Benz Center or contact us at one of the following addresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Z
Page 32
Introduction
30
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.
Federal Regulations, Part 575 pursuant to the
"National Traffic 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 Traffic 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 http://www.safercar.gov; or write to:
Administrator, NHTSA, 400 Seventh Street,
SW., Washington, DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
Follow the instructions in this manual
!
about the proper operation of your vehicle
as well as about possible vehicle damage.
Damage to your vehicle that arises from
culpable contraventions against these
instructions is not covered either by the
Mercedes-Benz Limited Warranty or by the
New or Used-Vehicle Warranty.
QR codes for the rescue card
The QR code is secured 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 contains the most important information about your vehicle in a compact form,
e.g. the routing of the electric cables.
You can find more information at https://
portal.aftersales.i.daimler.com.
Data stored in the vehicle
Data recording
This vehicle is capable of recording diagnostic
information relating to vehicle operation, malfunctions, and user settings. This may include
information about the performance or status
of various systems, including but not limited
to, engine, throttle, steering or brake systems, that is stored and can be read out with
suitable devices, particularly when the vehicle is serviced. The data obtained is used to
properly diagnose and service your vehicle or
to further optimize and develop vehicle functions.
COMAND/mbrace
If the vehicle is equipped with COMAND or
mbrace, additional data about the vehicle’s
operation, the use of the vehicle in certain
situations, and the location of the vehicle may
be compiled through COMAND or the mbrace
system.
For additional information please refer to the
COMAND User Manual and/or the mbrace
Terms and Conditions.
Event data recorders
This vehicle is equipped with an event data
recorder (EDR). The main purpose of an EDR
Page 33
Introduction
31
is to record data that will assist in understanding how a vehicle’s systems performed
in certain crash or near crash-like situations,
such as during air bag deployment or when
hitting a road obstacle. 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:
R
how various systems in your vehicle are
operating
R
whether or not the driver and passenger
seat belts are fastened
R
how far (if at all) the driver is depressing the
accelerator and/or brake pedal and
R
how fast the vehicle is traveling
This data can help provide a better understanding of the circumstances in which
crashes 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 crash location) are recorded. However,
other parties, such as law enforcement, can
combine the EDR data with the type of personal identification data routinely acquired
during a crash investigation.
To read data recorded by an EDR, special
equipment 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
matters as a tool in accident reconstruction,
accident 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.
MBUSA will not share EDR data with others
without the consent of the vehicle owners or,
if the vehicle is leased, without the consent of
the lessee. 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,
altering, modifying or removing the EDR component may result in a malfunction of the
Restraint System 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
February 2013, 13 states have enacted laws
relating to EDRs.
Information on copyright
General information
Information on license for free and opensource software used in your vehicle and its
electronic components is available on the following website:
Children in the vehicle ........................ 69
Pets in the vehicle ............................... 76
Driving safety systems ....................... 76
Protection against theft ..................... 86
45
Safety
Page 48
Hybrid vehicles
46
Useful information
This Operator's Manual describes all
i
models and all standard and optional equipment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
Safety
equipped with all features described. This
also applies to safety-related systems and
functions.
Read the information on qualified special-
i
ist workshops (Y page 29).
Hybrid vehicles
General notes
Hybrid technology combines a fuel efficient
internal combustion engine with a powerful
electric motor.
Important safety notes
Danger of electric shock
DANGER
G
The vehicle's high voltage electrical system is
under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehicle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any highvoltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
When towing a vehicle after an accident, be
sure to observe the following sections:
R
Transporting the vehicle (Y page 437)
R
Towing the vehicle with the rear axle raised
(Y page 437)
R
Towing a vehicle with both axles on the
ground (Y page 436)
Read the safety instructions on towing and
tow-starting (Y page 435).
All components of the hybrid system are
marked with yellow warning stickers that
warn you of the danger of high voltage. The
cables of the vehicle's high-voltage electrical
system are orange in color.
The ignition must be switched off when carrying out general tasks, such as adding
washer fluid to the windshield washer system
or checking the coolant level.
Automatic deactivation of the hybrid
system
DANGER
G
If the restraint system is malfunctioning, individual restraint system components may be
triggered unintentionally or might not be triggered at all in the event of an accident with a
high rate of vehicle deceleration. This could
affect Emergency Tensioning Devices or air
bags, for example. The vehicle's high-voltage
electrical system may also not be deactivated
as intended in the event of an accident. You
could suffer an electric shock if you touch the
damaged components of the vehicle's high-
Page 49
voltage electrical system. This poses an
increased risk of injury or even fatal injury.
Have the restraint system checked and
repaired immediately at a qualified specialist
workshop. Immediately switch off the ignition
and remove the SmartKey from the ignition
lock after an accident.
If components of the restraint system are
activated during an accident, the hybrid system is automatically deactivated.
The hybrid system is not activated when the
vehicle is started if:
R
a short circuit is detected in the hybrid system.
R
one of the hybrid system’s electrical connections is disconnected.
This ensures that you do not come into contact with high voltage.
Manual deactivation of the hybrid system
The hybrid system can be deactivated manually using the high voltage switch-off device.
To prevent damage to the hybrid system
!
please observe the following instructions:
R
only deactivate the hybrid system manually in the following situations.
R
work on the hybrid system may only be
carried out at a qualified specialist workshop, even when it has been deactivated
manually.
R
if the 6 restraint system warning lamp
in the instrument cluster lights up after an
accident.
R
if the vehicle is badly damaged, e.g. after an
accident, and the restraint system components were not activated.
R
if the vehicle is badly damaged and has to
be towed or transported.
Hybrid vehicles
X
If possible, move the vehicle out of the
danger zone: shift the automatic transmis-sion into position N.
X
Release the electric parking brake.
X
Roll the vehicle to a safe place and park it
safely.
Get assistance from others if necessary.
The vehicle is locked automatically when
i
the ignition is switched on and the wheels
are turning. There is therefore a risk of
being locked out if the vehicle is being
pushed or tested on a dynamometer.
X
Switch the ignition off.
X
Shift the automatic transmission to park
position P (Y page 197).
Depress the electric parking brake
(Y page 222).
Secure the vehicle against rolling away
(Y page 466).
X
To use the high-voltage switch-off
device: open the trunk lid.
X
Lift the trunk floor upwards (Y page 377).
X
Remove the right-hand paneling in the
trunk.
X
Press release clip : in the direction of the
arrow and pull it out.
X
Pull the high voltage switch-off device ;
apart until it engages in the stop position.
If the hybrid system has been deactivated due
to reasons mentioned above, have it checked
at a qualified specialist workshop before
reactivation.
47
Safety
Z
Page 50
Hybrid vehicles
48
High-voltage battery
WARNING
G
In the event of a vehicle fire, the internal pressure of the high-voltage battery can exceed a
critical value. In this case flammable gas
escapes through a ventilation valve on the
underbody. The gas can ignite. There is a risk
Safety
of injury.
Leave the danger zone immediately. Secure
the danger area at a suitable distance, whilst
observing legal requirements.
WARNING
G
If the housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out. These are poisonous and caustic.
There is a risk of injury.
Avoid contact with skin, eyes or clothing.
Immediately rinse electrolyte splashes off
with water and seek medical attention
straight away.
Exhaustive discharge caused by the vehi-
!
cle standing idle for lengthy periods can
damage the high-voltage battery.
Hybrid vehicles: if the vehicle is idle for
lengthy periods, run it for a few minutes
once every six weeks to charge up the highvoltage battery. During the charging process, switch off all electrical consumers, e.g.
the automatic climate control or the seat
heating.
Plug-in hybrid vehicles: if the vehicle is
idle for lengthy periods leave the high-voltage battery connected to a charging station.
PLUG-IN HYBRID vehicles: charging the highvoltage battery (Y page 209).
X
Switch the ignition off.
X
Remove the Start/Stop button from the
ignition lock (Y page 189).
or
X
If the SmartKey is inserted in the ignition
lock: remove the SmartKey from the ignition lock.
X
Observe the warning notes on the risk of
electric shock (Y page 46).
X
Observe the warning notices about the
hood (Y page 404).
RBS driving safety system (Recuperative Brake System)
The Recuperative Braking System supports
you when braking with an electronically-controlled brake boost mode and enables the
recovery of kinetic energy (recuperation).
WARNING
G
If the Recuperative Braking System malfunctions, braking resistance may be reduced and
brake pedal travel may be longer than usual. If
you subsequently depress the brake pedal as
usual, the braking effect may not be sufficient.
There is a risk of an accident.
In the event of this malfunction, continue to
depress the brake pedal. Stop the vehicle in
accordance with the traffic conditions. If necessary, contact a qualified specialist workshop.
Further information about the Recuperative
Braking System (Y page 276).
Engine compartment
Before opening the hood:
X
Apply the electric parking brake.
X
Shift the automatic transmission to park
position P.
Page 51
Occupant safety
49
Panic alarm
X
To activate: press ! button : for at
least one second.
An alarm sounds and the exterior lighting
flashes.
X
To deactivate: press ! button :
again.
or
X
Press the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Restraint system: introduction
The restraint system reduces the risk of vehicle occupants coming into contact with parts
of the vehicle's interior in the event of an
accident. The restraint system can also
reduce the forces to which vehicle occupants
are subjected during an accident.
The restraint system comprises:
R
Seat belt system
R
Air bags
R
Child restraint system
R
Child seat securing systems
The components of the restraint system work
in conjunction with each other. They can only
deploy their protective function if, at all times,
all vehicle occupants:
R
have fastened their seat belts correctly
(Y page 53)
R
have adjusted their seat and head restraint
properly (Y page 121).
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct driver's seat position (Y page 120).
You also have to make sure that an air bag can
inflate properly if deployed (Y page 56).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air
bag increases the level of protection for vehicle occupants in the event of an accident. For
example, if, in the event of an accident, the
protection offered by the seat belt is sufficient, the air bags are not deployed. When an
accident occurs, only the air bags that
increase protection in that particular accident
situation are deployed. However, seat belts
and air bags generally do not protect against
objects penetrating the vehicle from the outside.
Information on restraint system operation
can be found under "Deployment of Emergency Tensioning Devices and air bags"
(Y page 65).
For more information about children traveling
with you in the vehicle and on child restraint
systems, see "Children in the vehicle"
(Y page 69).
Important safety notes
WARNING
G
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
Safety
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Page 52
Occupant safety
50
This poses an increased risk of injury or even
fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify an air bag system to
accommodate a person with disabilities, contact an authorized Mercedes-Benz Center for
Safety
details. USA only: for further information contact our Customer Assistance Center at
1-800-FOR-MERCedes (1‑800‑367‑6372).
Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and
at regular intervals while the engine is running. Therefore, malfunctions can be detected in good time.
The 6 restraint system warning lamp in
the instrument cluster lights up when the ignition is switched on. It goes out no later than a
few seconds after the vehicle is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 6
restraint system warning lamp:
R
does not light up after the ignition is
switched on
R
does not go out after a few seconds with
the engine running
R
lights up again while the engine is running
All vehicles, except hybrid vehicles:
WARNING
G
If restraint system is malfunctioning, restraint
system components may be triggered unintentionally or might not be triggered at all in
the event of an accident with a high rate of
vehicle deceleration. This can affect the Emergency Tensioning Device or air bag, for example. This poses an increased risk of injury or
even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible.
Hybrid vehicles:
DANGER
G
If the restraint system is malfunctioning, individual restraint system components may be
triggered unintentionally or might not be triggered at all in the event of an accident with a
high rate of vehicle deceleration. This could
affect Emergency Tensioning Devices or air
bags, for example. The vehicle's high-voltage
electrical system may also not be deactivated
as intended in the event of an accident. You
could suffer an electric shock if you touch the
damaged components of the vehicle's highvoltage electrical system. This poses an
increased risk of injury or even fatal injury.
Have the restraint system checked and
repaired immediately at a qualified specialist
workshop. Immediately switch off the ignition
and remove the SmartKey from the ignition
lock after an accident.
PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG OFF indicator lamp :
and PASSENGER AIR BAG ON indicator
lamp ; are part of the Occupant Classification System (OCS).
The indicator lamps display the status of the
front-passenger front air bag.
R
PASSENGER AIR BAG OFF : lights up: the
front-passenger front air bag is deactiva-
Page 53
Occupant safety
51
ted. It will then not be deployed in the event
of an accident.
R
PASSENGER AIR BAG ON ; lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
Depending on the person in the frontpassenger seat, the front-passenger front air
bag must either be deactivated or enabled;
see the following points. You must make sure
of this both before and during a journey.
R
Children in a child restraint system:
whether the front-passenger front air bag is
enabled or deactivated depends on the
installed child restraint system, and the age
and size of the child. Therefore, be sure to
observe the notes on the "Occupant Classification System (OCS)" (Y page 59) and
on "Children in the vehicle" (Y page 69).
There you will also find instructions on rearward and forward-facing child restraint systems on the front-passenger seat.
R
All other persons: depending on the classification of the person in the frontpassenger seat, the front-passenger front
air bag is enabled or deactivated
(Y page 59). Be sure to observe the notes
on "Seat belts“ (Y page 51) and "Air bags"
(Y page 56). There you can also find information on the correct seat position.
Seat belts
Introduction
Seat belts are the most effective means of
restricting the movement of vehicle occupants in the event of an accident or the vehicle rolling over. This reduces the risk of vehicle occupants coming into contact with parts
of the vehicle interior or being ejected from
the vehicle. Furthermore, the seat belt helps
to keep the vehicle occupant in the best position in relation to the air bag.
The seat belt system comprises:
R
Seat belts
R
Emergency Tensioning Devices for the
front seat belts and the outer seat belts in
the rear
R
Seat belt force limiters for the front seat
belts and the outer seat belts in the rear
R
Belt bags for the outer seat belts in the rear,
depending on the vehicle's equipment
If the seat belt is pulled out of the belt outlet
quickly or with a jerky movement, the belt
retractor locks. The belt strap cannot be
extracted any further.
The Emergency Tensioning Device tightens
the seat belt in an accident, pulling the belt
close against the body. However it does not
pull the vehicle occupant back in the direction
of the backrest.
The Emergency Tensioning Device does not
correct an incorrect seat position or the routing of an incorrectly fastened seat belt.
When triggered, seat belt force limiters help
to reduce the force exerted by the seat belt on
the vehicle occupant.
The seat belt force limiters for the front seats
are synchronized with the front air bags,
which absorb part of the deceleration force.
This can reduce the force exerted on the vehicle occupants during an accident.
If the front-passenger seat is unoccupied,
!
do not insert the belt tongue into the buckle
of the front-passenger seat. This may otherwise lead to the triggering of the Emergency Tensioning Device in the event of an
accident, which will then need to be
replaced.
Important safety notes
The use of seat belts and child restraint systems is required by law in:
R
all 50 states
R
the U.S. territories
R
the District of Columbia
R
all Canadian provinces
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Page 54
Occupant safety
52
Even where this is not required by law, all
vehicle occupants should correctly fasten
their seat belts before starting the journey.
WARNING
G
If the seat belt is incorrectly fastened, it cannot protect as intended. Furthermore, an
incorrectly fastened seat belt can cause addi-
Safety
tional injury, for example, in an accident, during braking or when abruptly changing direction. This poses an increased risk of injury or
even fatal injury.
Make sure that all vehicle occupants are
seated properly with a correctly fastened seat
belt.
WARNING
G
The seat belt does not offer the intended level
of protection if you have not moved the backrest to an almost vertical position. When braking or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal
injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
WARNING
G
Objects next to the front seat that block the
belt buckle or the moving belt anchorage on
the front seat impair the function of the Emergency Tensioning Devices. The Emergency
Tensioning Devices may not function as intended and the seat belt may no longer provide
the intended protection. This poses an
increased risk of injury or even fatal injury.
Before starting the journey, make sure that
there are no objects around the belt buckle or
between the front seat and door.
WARNING
G
Persons under 5 ft (1.50 m) in height cannot
fasten the seat belt correctly without an addi-
tional suitable restraint system. If the seat
belt is incorrectly fastened, it cannot protect
as intended. Furthermore, an incorrectly fastened seat belt can cause additional injury, for
example, in an accident, during braking or an
abrupt change of direction. This poses an
increased risk of injury or even fatal injury.
For this reason, always secure persons under
5 ft (1.50 m) in height in suitable restraint
systems.
If a child younger than 12 years and under 5 ft
(1.50 m) in height is traveling in the vehicle:
R
always secure the child in a child restraint
system suitable for this Mercedes-Benz
vehicle. The child restraint system must be
appropriate to the age, weight and size of
the child
R
always observe the instructions and safety
notes on the belt bags for the outer seat
belts in the rear (Y page 53)
R
always observe the instructions and safety
notes in the "Children in the vehicle" section of this Operator's Manual
(Y page 69) in addition to the child
restraint system manufacturer's installation instructions
R
be sure to observe the instructions and
safety notes on the "Occupant classification system (OCS)" (Y page 59)
WARNING
G
The seat belts may not perform their intended
protective function if:
R
they are damaged, modified, extremely
dirty, bleach or dyed
R
the seat belt buckle is damaged or
extremely dirty
R
the Emergency Tensioning Devices, belt
anchorages or inertia reels have been modified
Seat belts may sustain non-visible damage in
an accident, e.g. due to glass splinters. Modified or damaged seat belts may tear or fail,
e.g. in an accident. Modified Emergency Tensioning Devices could accidentally trigger or
Page 55
Occupant safety
53
fail to deploy when necessary. This poses an
increased risk of injury or even fatal injury.
Never modify the seat belts, Emergency Tensioning Devices, belt anchorages or inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean. Following an accident, have the seat belts checked
immediately at a qualified specialist workshop.
Only use seat belts that have been approved
for your vehicle by Mercedes-Benz. Any such
modifications could invalidate the vehicle's
general operating permit.
Proper use of the seat belts
Observe the safety notes on the seat belt
(Y page 51).
All vehicle occupants must be wearing the
seat belt correctly before beginning the journey. Also make sure that all vehicle occupants are always wearing the seat belt correctly while the vehicle is in motion.
When fastening the seat belt, always make
sure that:
R
the seat belt tongue is only inserted to the
belt buckle belonging to that seat.
R
the seat belt is tight across your body.
Avoid wearing bulky clothing, e.g. a winter
coat.
R
the seat belt is not twisted.
Only then can the forces which occur be
distributed over the area of the belt.
R
the shoulder section of the belt is always
routed across the center of your shoulder.
The shoulder section of the belt must not
come into contact with your neck or be
routed under your arm. Where possible,
adjust the seat belt to the appropriate
height.
R
the lap belt passes tightly and as low down
as possible across your lap.
The lap belt must always be routed across
your hip joints and not across your abdomen. This applies particularly to pregnant
women. If necessary, push the lap belt
down to your hip joint and pull it tight using
the shoulder section of the belt.
R
the seat belt is not routed across sharp,
pointed or fragile objects.
If you have such items located on or in your
clothing, e.g. pens, keys or eyeglasses,
store these in a suitable place.
R
only one person is using a seat belt at a
time.
Infants and children must never travel sitting on the lap of a vehicle occupant. In the
event of an accident, they could be crushed
between the vehicle occupant and seat
belt.
R
objects are never secured with a seat belt if
the seat belt is also being used by one of the
vehicle's occupants.
Seat belts are only intended to secure and
restrain vehicle occupants. Always observe
the "Loading guidelines" for securing objects,
luggage or loads (Y page 372).
Rear beltbags
Observe the "Important safety notes" sec-
i
tion (Y page 56).
Depending on the vehicle's equipment, the
outer rear seat belts are equipped with a belt
bag. This can be seen from the BELTBAG identification on the rear seat belt.
WARNING
G
In an accident, the belt bag may damage a
non-approved child restraint system. As a
result, the child restraint system may not be
able to provide the intended level of protection. This poses an increased risk of injury or
even fatal injury.
For this reason, a child restraint system with
an integrated seat belt should always be
installed using LATCH-type (ISOFIX). In a vehicle with optional belt bags for the rear seats,
you should only ever use a booster seat with
integrated backrest that has been tested and
approved by Mercedes-Benz in conjunction
Safety
Z
Page 56
Occupant safety
54
with a belt bag. Never use a seat belt equipped
with a belt bag to secure a forward or rearward-facing child restraint system or a booster seat that has not been approved. For information on approved child restraint systems,
please contact an authorized Mercedes-Benz
Center.
Safety
Further information on child restraint systems (Y page 69).
When triggered, belt bags : open, increasing the protected area of the occupants' ribcages. The beltbags are triggered depending
on the type and severity of the accident.
Fastening and adjusting the seat belts
Observe the safety notes on the seat belt
(Y page 51) and the notes on correct use of
seat belts (Y page 53).
X
Adjust the seat (Y page 120).
The seat backrest must be in an almost
vertical position.
X
Pull the seat belt smoothly from belt outlet
= and engage belt tongue ; into belt
buckle :.
The seat belt on the driver’s seat and the
front-passenger seat may be tightened
automatically, see "Belt adjustment"
(Y page 55).
X
If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
The shoulder section of the seat belt must
always be routed across the center of the
shoulder. Adjust the belt outlet if necessary.
X
To raise: slide the belt outlet upwards.
The belt outlet will engage in various positions.
X
To lower: hold belt outlet release : and
slide the belt outlet downwards.
X
Let go of belt outlet release : in the
desired position and make sure that the
belt outlet engages.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. Further information can be found
under "Special seat belt retractor"
(Y page 69).
Page 57
Rear seat belt buckle extenders
The seat belt extender is an integral part of
the PRE-SAFE®convenience function. It is
used on the outer rear seats.
Always ensure that it is possible to move the
belt buckle freely. Always stow objects in the
vehicle correctly.
To assist you in finding the seat belt buckle
and fastening the seat belt:
R
the belt buckle moves forwards to a convenient position
R
the belt buckle is illuminated
After the seat belt is fastened, the belt buckle
returns to its normal position. The seat belt
then lies tight across the lap and thorax areas.
Incorporation into the PRE-SAFE®system:
the belt buckle is lowered quickly in certain
hazardous situations. This pre-tensions the
seat belt.
Incorporation into the automatic measures after the accident: in this situation, the
belt buckle is illuminated and extended after
a rear door is opened.
Releasing seat belts
Make sure that the seat belt is fully rolled
!
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Damaged seat belts can no longer fulfill their
protective function and must be replaced.
Visit a qualified specialist workshop.
Occupant safety
X
Press release button :, hold belt
tongue ; firmly and guide it back towards
belt outlet =.
Seat belt adjustment
The seat-belt adjustment is an integral part of
the PRE-SAFE®convenience function. This
function adjusts the driver's and frontpassenger seat belt to the upper body of the
occupants.
The belt strap is tightened slightly when:
R
the belt tongue is engaged in the buckle
and
R
the ignition is switched on
The seat-belt adjustment will apply a certain
retraction force if any slack is detected
between the vehicle occupant and the seat
belt. Do not hold on to the seat belt tightly
while it is adjusting.
You can switch the seat-belt adjustment on
and off using COMAND. Information on
switching the belt adjustment function on and
off can be found in the Digital Operator's
Manual or in the separate COMAND operating
instructions.
55
Safety
Z
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Occupant safety
56
Belt warning for the driver and front
passenger
The 7 seat belt warning lamp in the instrument cluster is a reminder that all occupants
must fasten their seat belts. It may light up
continuously or flash. In addition, there may
be a warning tone.
Safety
Regardless of whether the driver's seat belt
has already been fastened, the 7 seat belt
warning lamp lights up for six seconds each
time the engine is started. If, after
six seconds, the driver or front-passenger
seat belt has not been fastened and the doors
are closed, the 7 seat belt warning lamp
lights up. As soon as the driver's and frontpassenger seat belts are fastened or a front
door is opened again, the 7 seat belt
warning lamp goes out.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. This warning tone stops after
six seconds or when the driver's seat belt is
fastened.
If the vehicle's speed exceeds 15 mph
(25 km/h) once and the driver's and frontpassenger seat belts are not fastened, a
warning tone sounds. A warning tone also
sounds with increasing intensity for
60 seconds or until the driver or front
passenger have fastened their seat belts.
If the driver or front passenger unfasten their
seat belts during the journey, the seat belt
warning is activated again.
For more information on the 7 seat
i
belt warning lamp, see "Warning and indicator lamps in the instrument cluster, seat
belts" (Y page 355).
Air bags
Introduction
The installation point of an air bag can be recognized by the AIR BAG symbol.
An air bag complements the correctly fastened seat belt. It is no substitute for the seat
belt. The air bag provides additional protection in applicable accident situations.
Not all air bags are deployed in an accident.
The different air bag systems function independently from one another (Y page 65).
However, no system available today can completely eliminate injuries and fatalities.
It is also not possible to rule out a risk of injury
caused by an air bag due to the high speed at
which the air bag must be deployed.
Important safety notes
WARNING
G
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed. This poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants:
R
have fastened their seat belts correctly,
including pregnant women
R
are sitting correctly and maintain the greatest possible distance to the air bags
R
follow the following instructions
Always make sure that there are no objects
between the air bag and the vehicle's occupants.
R
Adjust the seats properly before beginning
your journey. Always make sure that the
seat is in an almost upright position. The
center of the head restraint must support
the head at about eye level.
R
Move the driver's and front-passenger
seats as far back as possible. The driver's
seat position must allow the vehicle to be
driven safely.
R
Only hold the steering wheel on the outside. This allows the air bag to be fully
deployed.
R
Always lean against the backrest while driving. Do not lean forwards or lean against
the door or side window. You may other-
Page 59
Occupant safety
57
wise be in the deployment area of the air
bags.
R
Always keep your feet in the footwell in
front of the seat. Do not put your feet on the
dashboard, for example. Your feet may otherwise be in the deployment area of the air
bag.
R
For this reason, always secure persons less
than 5 ft (1.50 m) tall in suitable restraint
systems. Up to this height, the seat belt
cannot be worn correctly.
If a child is traveling in your vehicle, also
observe the following notes:
R
Always secure children under 12 years of
age and less than 5 ft (1.50 m) in height in
suitable child restraint systems.
R
Child restraint systems should be installed
on the rear seats.
R
Only secure a child in a rearward-facing
child restraint system on the frontpassenger seat when the front-passenger
front air bag is deactivated. If the
PASSENGER AIR BAG OFF indicator lamp is
permanently lit, the front-passenger front
air bag is deactivated (Y page 50).
R
Always observe the instructions and safety
notes on the "Occupant Classification System (OCS)" (Y page 59) and on "Children
in the vehicle" (Y page 69) in addition to
the child restraint system manufacturer's
installation instructions.
Objects in the vehicle interior may prevent an air bag from functioning correctly.
Before starting your journey and to avoid risks
resulting from the speed of the air bag as it
deploys, make sure that:
R
there are no people, animals or objects
between the vehicle occupants and an air
bag.
R
there are no objects between the seat, door
and B-pillar.
R
no hard objects, e.g. coat hangers, hang on
the grab handles or coat hooks.
R
no accessories, such as cup holders, are
attached to the vehicle within the deploy-
ment area of an air bag, e.g. to doors, side
windows, rear side trim or side walls.
R
no heavy, sharp-edged or fragile objects
are in the pockets of your clothing. Store
such objects in a suitable place.
WARNING
G
If you modify the air bag cover or affix objects
such as stickers to it, the air bag can no longer
function correctly. There is an increased risk
of injury.
Never modify an air bag cover or affix objects
to it.
WARNING
G
Sensors to control the air bags are located in
the doors. Modifications or work not performed correctly to the doors or door paneling, as well as damaged doors, can lead to the
function of the sensors being impaired. The air
bags might therefore not function properly
any more. Consequently, the air bags cannot
protect vehicle occupants as they are
designed to do. There is an increased risk of
injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door paneling carried out at a qualified specialist workshop.
Front air bags
Driver's air bag : deploys in front of the
steering wheel. Front-passenger front air
bag ; deploys in front of and above the glove
box.
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Occupant safety
58
When deployed, the front air bags offer additional head and thorax protection for the
occupants in the front seats.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
inform you about the status of the frontpassenger front air bag (Y page 50).
Front-passenger front air bag ; will only
Safety
deploy if:
R
the system, based on the OCS weight sensor readings, detects that the frontpassenger seat is occupied (Y page 59).
The PASSENGER AIR BAG ON indicator
lamp is lit (Y page 60)
R
the restraint system control unit predicts a
high accident severity
Driver's knee bag
Driver's knee bag : deploys under the steering column. The driver's knee bag is always
deployed along with the driver's front air bag.
The driver's knee bag offers additional thigh,
knee and lower leg protection for the occupant in the driver's seat.
Side impact air bags
WARNING
G
Unsuitable seat covers could restrict or even
prevent the deployment of the air bags integrated into the seats. Consequently, the air
bags cannot protect vehicle occupants as
they are designed to do. In addition, the function of the Occupant Classification System
(OCS) could be restricted. This poses an
increased risk of injury or even fatal injury.
You should only use seat covers that have
been approved for the respective seat by
Mercedes-Benz.
Front side impact air bags : and rear side
impact air bags ; deploy next to the outer
bolster of the seat backrest.
When deployed, the side impact air bag offers
additional thorax protection. It also offers
additional pelvis protection for occupants in
the front seats. However, it does not protect
the:
R
head
R
neck
R
arms
In the event of a side impact, the side impact
air bag is deployed on the side on which the
impact occurs.
The side impact air bag on the frontpassenger side (front) deploys in the following situations:
R
the OCS system detects that the frontpassenger seat is occupied or
R
the belt tongue is engaged in the belt
buckle of the front-passenger seat
If the belt tongue is engaged in the belt
buckle, the side impact air bag on the frontpassenger side deploys if an appropriate accident situation occurs. In this case, deployment is independent of whether the frontpassenger seat is occupied or not.
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Occupant safety
59
Window curtain air bags
Window curtain air bags : are integrated
into the side of the roof frame and deployed in
the area from the A-pillar to the C-pillar.
When deployed, the window curtain air bag
enhances the level of protection for the head.
However, it does not protect the chest or
arms.
In the event of a side impact, the window curtain air bag is deployed on the side on which
the impact occurs.
If the system determines that they can offer
additional protection to that provided by the
seat belt, a window curtain air bag may be
deployed in other accident situations
(Y page 65).
Cushion air bags
Observe the "Important safety notes" sec-
i
tion (Y page 56).
The rear reclining seat is equipped with a
cushion air bag. If the seat backrest is
reclined, the cushion air bag can provide additional occupant protection in the event of
frontal collision situations. When triggered,
the cushion air bag deploys under the seat
cushion. This helps prevent the occupant
from slipping off the seat cushion.
WARNING
G
If a child restraint system is installed and the
seat backrest is reclined too far backwards,
the cushion air bag may deploy by mistake in
the event of an accident. There is an increased
risk of injury.
When using a child restraint system, always
ensure that the seat is correctly adjusted and
that the backrest is almost vertical.
If you install a child restraint system on the
rear reclining seat, always observe:
R
the instructions and safety notes in "Children in the vehicle" (Y page 69)
R
the child restraint system manufacturer's
installation instructions.
Occupant Classification System
(OCS)
Introduction
The Occupant Classification System (OCS)
categorizes the person in the front-passenger
seat. Depending on that result, the frontpassenger front air bag is either enabled or
deactivated.
The system does not deactivate:
R
the side impact air bag
R
the window curtain air bag
R
the Emergency Tensioning Devices
Prerequisites
To be classified correctly, the front passenger
must sit:
R
with the seat belt fastened correctly
R
in an almost upright position with their
back against the seat backrest
R
with their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classification, e.g. because the front passenger:
R
transfers their weight by supporting themselves on a vehicle armrest
R
sits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat,
be sure to observe the correct positioning of
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Page 62
Occupant safety
60
the child restraint system. Never place
objects under or behind the child restraint
system, e.g. cushions. Fully retract the seat
cushion length. The entire base of the child
restraint system must always rest on the seat
cushion of the front-passenger seat. The
backrest of the forwards-facing child restraint
system must, as far as possible, be resting on
Safety
the backrest of the front-passenger seat.
The child restraint system must not touch the
roof or be put under strain by the head
restraint. Adjust the angle of the seat backrest and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint
system manufacturer's installation instructions.
Occupant Classification System operation (OCS)
:
PASSENGER AIR BAG OFF indicator lamp
;
PASSENGER AIR BAG ON indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
X
Press the Start/Stop button once or twice,
or turn the SmartKey to position 1 or 2 in
the ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
must light up simultaneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag.
R
PASSENGER AIR BAG OFF : lights up: the
front-passenger front air bag is deactivated. It will then not be deployed in the event
of an accident.
R
PASSENGER AIR BAG ON ; lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
If the status of the front-passenger front air
bag changes while the vehicle is in motion, an
air bag display message appears in the instrument cluster (Y page 332). When the frontpassenger seat is occupied, always pay attention to the PASSENGER AIR BAG ON and
PASSENGER AIR BAG OFF indicator lamps. Be
aware of the status of the front-passenger
front air bag both before and during the journey.
WARNING
G
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is
disabled. It will not be deployed in the event of
an accident and cannot perform its intended
protective function. A person in the frontpassenger seat could then, for example, come
into contact with the vehicle's interior, especially if the person is sitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
R
the classification of the person in the frontpassenger seat is correct and the frontpassenger front air bag is enabled or disabled in accordance with the person in the
front-passenger seat
R
the front-passenger seat has been moved
back as far back as possible.
R
the person is seated correctly.
Make sure, both before and during the journey, that the status of the front-passenger
front air bag is correct.
Page 63
Occupant safety
61
WARNING
G
If you secure a child in a rearward-facing child
restraint system on the front-passenger seat
and the PASSENGER AIR BAG ON indicator
lamp is lit up, the front-passenger front air bag
may deploy in an accident. The child could be
struck by the air bag. This poses an increased
risk of injury or even fatal injury.
Make sure that the front-passenger front air
bag has been disabled. The PASSENGER AIR
BAG OFF indicator lamp must be lit.
If the PASSENGER AIR BAG OFF indicator
lamp remains off and/or the PASSENGER AIR
BAG ON indicator lamp lights up, do not install
a rearward-facing child restraint system on
the front-passenger seat. You can find more
information on OCS under "Problems with the
Occupant Classification System"
(Y page 64).
WARNING
G
If you secure a child in a forward-facing child
restraint system on the front-passenger seat
and you position the front-passenger seat too
close to the dashboard, in the event of an
accident, the child could:
R
come into contact with the vehicle's interior if the PASSENGER AIR BAG OFF indicator lamp is lit, for example
R
be struck by the air bag if the PASSENGER
AIR BAG ON is lit up
This poses an increased risk of injury or even
fatal injury.
Always move the front-passenger seat as far
back as possible and fully retract the seat
cushion length. Always make sure that the
shoulder belt strap is correctly routed from
the vehicle belt sash guide to the shoulder
belt guide on the child restraint system. The
shoulder belt strap must be routed forwards
and downwards from the vehicle belt sash
guide. If necessary, adjust the vehicle belt
sash guide and the front-passenger seat
accordingly. Always observe the child
restraint system manufacturer's installation
instructions.
If OCS determines that:
R
the front-passenger seat is unoccupied, the
PASSENGER AIR BAG OFF indicator lamp
lights up after the system self-test and
remains lit. This indicates that the frontpassenger front air bag is deactivated.
R
the front-passenger seat is occupied by a
child of up to 12 months old in a standard
child restraint system, the PASSENGER AIR
BAG OFF indicator lamp lights up after the
system self-test and remains lit. This indicates that the front-passenger front air bag
is deactivated.
But in the case of a 12-month-old child in a
standard child restraint system, the
PASSENGER AIR BAG ON can light up permanently after the system self-test. This
indicates that the front-passenger front air
bag is activated. The result of the classification is dependent on, among other factors, the child restraint system and the
child's stature. It is recommended that you
install the child restraint system on a suitable rear seat.
R
the front-passenger seat is occupied by a
person of smaller stature (e.g. a teenager
or small adult), either the PASSENGER AIR
BAG ON or PASSENGER AIR BAG OFF indicator lamp lights up and remains lit after
the system self-test depending on the
result of the classification.
-
If the PASSENGER AIR BAG ON indicator
lamp lights up, move the front-passenger
seat as far back as possible. Alternatively, a person of smaller stature can sit
on a rear seat.
-
If the PASSENGER AIR BAG OFF indicator
lamp is lit, a person of smaller stature
should not use the front-passenger seat.
R
the front-passenger seat is occupied by an
adult or a person of a stature corresponding to that of an adult, the PASSENGER AIR
BAG ON indicator lamp lights up after the
system self-test and remains lit. This indicates that the front-passenger front air bag
is activated.
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Page 64
Occupant safety
62
If children are traveling in the vehicle, be sure
to observe the notes on "Children in the vehicle" (Y page 69).
When OCS is malfunctioning, the red 6
restraint system warning lamp in the instrument cluster and the PASSENGER AIR BAG
OFF indicator lamp light up simultaneously.
The front-passenger front air bag is deactiva-
Safety
ted in this case and does not deploy during an
accident. Have the system checked by qualified technicians as soon as possible. Consult
an authorized Mercedes-Benz Center. The
front-passenger seat should only be repaired
at an authorized Mercedes-Benz Center.
If the front-passenger seat, the seat cover or
the seat cushion is damaged, have the necessary repair work carried out at an authorized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz recommends that you only use seat accessories
that have been approved by Mercedes-Benz.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy. The Occupant Classification
System (OCS) categorizes the occupant in the
front-passenger seat. Depending on that
result, the front-passenger front air bag is
either enabled or deactivated.
System self-test
DANGER
G
If both the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps do
not light up during the system self-test, the
system is malfunctioning. The frontpassenger front air bag might be triggered
unintentionally or might not be triggered at all
in the event of an accident with high deceleration. This poses an increased risk of injury or
even fatal injury.
In this case the front-passenger seat may not
be used. Do not install a child restraint system
on the front-passenger seat. Have the Occupant Classification System (OCS) checked
and repaired immediately at a qualified specialist workshop.
DANGER
G
If the PASSENGER AIR BAG OFF indicator
lamp remains lit after the system self-test, the
front-passenger front air bag is disabled. It will
not be deployed in the event of an accident. In
this case, the front-passenger front air bag
cannot perform its intended protective function, e.g. when a person is seated in the frontpassenger seat.
That person could, for example, come into
contact with the vehicle's interior, especially
if the person is sitting too close to the dashboard. This poses an increased risk of injury or
even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
R
the classification of the person in the frontpassenger seat is correct and the frontpassenger front air bag is enabled or disabled in accordance with the person in the
front-passenger seat
R
the person is seated properly with a correctly fastened seatbelt
R
the front-passenger seat has been moved
back as far back as possible
If the PASSENGER AIR BAG OFF indicator
lamp remains lit when it should not, the frontpassenger seat may not be used. Do not
install a child restraint system on the frontpassenger seat. Have the Occupant Classification System (OCS) checked and repaired
immediately at a qualified specialist workshop.
WARNING
G
Objects between the seat surface and the
child restraint system could affect OCS operation. This could result in the front-passenger
air bag not functioning as intended during an
accident. This poses an increased risk of
injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. The
entire base of the child restraint system must
always rest on the seat cushion of the frontpassenger seat. The backrest of the forward-
Page 65
facing child restraint system must, as far as
possible, be resting on the backrest of the
front-passenger seat. Always comply with the
child restraint system manufacturer's installation instructions.
After the system self-test, the PASSENGER
AIR BAG OFF or PASSENGER AIR BAG ON
indicator lamp display the status of the frontpassenger front air bag (Y page 60).
For more information about the OCS, see
"Problems with the Occupant Classification
System" (Y page 64).
Occupant safety
63
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Occupant safety
64
Problems with the Occupant Classification System (OCS)
Be sure to observe the notes on "System self-test" (Y page 62).
Problem
Possible causes/consequences and MM Solutions
The PASSENGER AIR
BAG OFF indicator
lamp lights up and
Safety
remains lit, even
though the frontpassenger seat is occupied by an adult or a
person of a stature corresponding to that of an
adult.
The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or does not stay
on.
The front-passenger
seat is:
R
unoccupied
R
occupied by the
weight of a child up
to 12 months old in a
child restraint system
The classification of the person on the front-passenger seat is
incorrect.
X
Make sure the conditions for a correct classification of the person on the front-passenger seat are met (Y page 59).
X
If the PASSENGER AIR BAG OFF indicator lamp remains lit, the
front-passenger seat may not be used.
X
Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center.
OCS is malfunctioning.
X
Make sure there is nothing between the seat cushion and the
child seat.
X
Make sure that the entire base of the child restraint system rests
on the seat cushion of the front-passenger seat. The backrest of
the forward-facing child restraint system must lie as flat as possible against the backrest of the front-passenger seat. If necessary, adjust the position of the front-passenger seat.
X
Make sure that the seat cushion length is fully retracted.
X
When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight using the frontpassenger seat adjustment. This could result in the seat belt and
the child restraint system being pulled too tightly.
X
Check for correct installation of the child restraint system.
Make sure that the head restraint does not apply a load to the
child restraint system. If necessary, adjust the head restraint
accordingly.
X
Make sure that no objects are applying additional weight onto
the seat.
X
If the PASSENGER AIR BAG OFF indicator lamp remains off and/
or the PASSENGER AIR BAG ON indicator lamp lights up, do not
install a child restraint system on the front-passenger seat. It is
recommended that you install the child restraint system on a
suitable rear seat.
X
Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center.
Page 67
Occupant safety
65
Deployment of Emergency Tensioning
Devices and air bags
Important safety notes
WARNING
G
The air bag parts are hot after an air bag has
been deployed. There is a risk of injury.
Do not touch the air bag parts. Have a
deployed air bag replaced at a qualified specialist workshop as soon as possible.
WARNING
G
A deployed air bag no longer offers any protection and cannot provide the intended protection in an accident. There is an increased
risk of injury.
Have the vehicle towed to a qualified specialist workshop in order to have a deployed air
bag replaced.
It is important for your safety and that of your
passenger to have deployed air bags replaced
and to have any malfunctioning air bags
repaired. This will help to make sure the air
bags continue to perform their protective
function for the vehicle occupants in the
event of a crash.
WARNING
G
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer operational and are unable to perform their intended protective function. This poses an
increased risk of injury or even fatal injury.
Therefore, have pyrotechnic Emergency Tensioning Devices which have been triggered
immediately replaced at a qualified specialist
workshop.
An electric motor is used by PRE-SAFE®to
trigger the tightening of the seat belt in hazardous situations. This procedure is reversible.
If Emergency Tensioning Devices are triggered or air bags are deployed, you will hear a
bang, and a small amount of powder may also
be released. The 6 restraint system warning lamp lights up.
Only in rare cases will the bang affect your
hearing. The powder that is released generally does not constitute a health hazard, but it
may cause short-term breathing difficulties in
people with asthma or other respiratory problems. To avoid this, you may wish to get out of
the vehicle or open the windows as soon as it
is safe to do so.
Air bags and pyrotechnic Emergency Tensioning Devices (ETDs) contain perchlorate material, which may require special handling and
regard for the environment. National guidelines must be observed during disposal. In
California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Method of operation
During the first stage of a collision, the
restraint system control unit evaluates important physical data relating to vehicle deceleration or acceleration, such as:
R
duration
R
direction
R
intensity
Based on the evaluation of this data, the
restraint system control unit triggers the
Emergency Tensioning Devices during a frontal or rear collision.
An Emergency Tensioning Device can only be
triggered, if:
R
the ignition is switched on
R
the components of the restraint system are
operational; see "Restraint system warning
lamp" (Y page 50)
R
the belt tongue is engaged in the buckle on
the respective front-passenger seat
The Emergency Tensioning Devices in the
rear compartment are triggered independently of the lock status of the seat belts.
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Occupant safety
66
Vehicles with belt bags: the belt bags are
also deployed depending on the type and
severity of the accident.
Vehicles with a rear reclining seat: the
Emergency Tensioning Device is only triggered if the belt buckle tongue is engaged in
the belt buckle.
If the seat backrest is reclined, the cushion air
Safety
bag will also be deployed depending on the
type and severity of the accident.
If the restraint system control unit detects a
more severe accident, further components of
the restraint system are activated independently of each other in certain frontal collision
situations:
R
Front air bags and driver's knee bag
R
Window curtain air bag, if the system determines that deployment can offer additional
protection to that provided by the seat belt
The front-passenger front air bag is activated
or deactivated depending on the person on
the front-passenger seat. The frontpassenger front air bag can only deploy in an
accident if the PASSENGER AIR BAG ON indicator lamp is lit. Observe the information on
the PASSENGER AIR BAG indicator lamps
(Y page 50).
Your vehicle has two-stage front air bags.
During the first deployment stage, the front
air bag is filled with propellant gas to reduce
the risk of injuries. The front air bag is fully
deployed with the maximum amount of propellant gas if a second deployment threshold
is reached within a few milliseconds.
The activation threshold of the Emergency
Tensioning Devices and the air bag are determined by evaluating the rate of vehicle deceleration or acceleration which occurs at various points in the vehicle. This process is preemptive in nature. Deployment should take
place in good time at the start of the collision.
The rate of vehicle deceleration or acceleration and the direction of the force are essentially determined by:
R
the distribution of forces during the collision
R
the collision angle
R
the deformation characteristics of the vehicle
R
the characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after a collision has occurred do not play a
decisive role in the deployment of an air bag.
Nor do they provide an indication of air bag
deployment.
The vehicle can be deformed considerably,
without an air bag being deployed. This is the
case if only parts which are relatively easily
deformed are affected and the rate of deceleration is not high. Conversely, air bags may
be deployed even though the vehicle suffers
only minor deformation. This is the case if, for
example, very rigid vehicle parts such as longitudinal body members are hit, and sufficient
deceleration occurs as a result.
If the restraint system control unit detects a
side impact or that the vehicle is rolling over,
the relevant restraint system components are
activated independently of one another
depending on the apparent type of accident.
If the system determines a need for additional
protection for the vehicle occupants, the
Emergency Tensioning Devices are triggered.
R
Side impact air bags on the side of impact,
independently of the Emergency Tensioning Device and the use of the seat belt on
the driver's seat and outer seats in the second row
Page 69
Occupant safety
67
The side impact air bag on the frontpassenger side (front) deploys in the following situations:
-
the OCS system detects that the frontpassenger seat is occupied or
-
the belt tongue is engaged in the belt
buckle of the front-passenger seat
R
Window curtain air bag on the side of
impact, independently of the use of the
seat belt and independently of whether the
front-passenger seat is occupied
R
Window curtain air bags on the driver's and
front-passenger side in certain situations
when the vehicle rolls over, if the system
determines that deployment can offer additional protection to that provided by the
seat belt
Not all air bags are deployed in an acci-
i
dent. The different air bag systems work
independently of each other.
How the air bag system works is determined by the severity of the accident detected, especially the vehicle deceleration or
acceleration and the apparent type of accident:
In certain hazardous situations, PRE-SAFE
takes pre-emptive measures to protect the
vehicle occupants.
Important safety notes
Make sure that there are no objects in the
!
footwell under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be damaged.
Despite your vehicle being equipped with the
PRE-SAFE®system, the possibility of personal injuries occurring as a result of an accident cannot be eliminated. Always adapt your
driving style to suit the prevailing road and
weather conditions and maintain a safe distance from the vehicle in front. Drive carefully.
Function
PRE-SAFE®intervenes:
R
in emergency braking situations, e.g. when
BAS is activated
R
in critical driving situations, e.g. when physical limits are exceeded and the vehicle
understeers or oversteers severely
R
vehicles with the Driving Assistance package: when a driver assistance system intervenes powerfully or the radar sensor system detects an imminent danger of collision in certain situations
PRE-SAFE®takes the following measures
depending on the hazardous situation detected:
R
the front seat belts are pre-tensioned.
R
if the vehicle skids, the panorama roof with
power tilt/sliding panel and the side windows are closed so that only a small gap
remains.
R
the front-passenger seat is adjusted if it is
in an unfavorable position.
R
for vehicles with electrically adjustable rear
seats: the outer rear seats are adjusted if
®
they are in an unfavorable position.
R
vehicles with a multicontour seat: the air
pressure in the side bolsters of the seat
backrest is increased.
R
vehicles with seat belt extenders: the seat
belts of the outer rear seats are pre-tensioned.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE®slackens
the belt pre-tensioning. On vehicles with multicontour seats, the air pressure in the side
Safety
Z
Page 70
Occupant safety
68
bolsters is reduced again. All settings made
by PRE-SAFE®can then be reversed.
If the seat belt pre-tensioning is not reduced:
X
Move the seat backrest or seat back
slightly when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
Safety
The seat-belt adjustment is an integral part of
the PRE-SAFE®convenience function. Information about the convenience function can
be found under "Belt adjustment"
(Y page 55).
PRE-SAFE®PLUS (anticipatory occupant protection system PLUS)
Introduction
PRE-SAFE®PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
PLUS is able to detect that a head-on or rearend collision is imminent. In certain hazardous situations, PRE-SAFE®PLUS takes preemptive measures to protect the vehicle
occupants.
Important safety notes
The intervention of PRE-SAFE®PLUS cannot
prevent an imminent collision.
The driver is not warned when PRE-SAFE
PLUS intervenes.
PRE-SAFE®PLUS does not intervene if the
vehicle is backing up.
PRE-SAFE®PLUS does not perform braking
actions while the vehicle is in motion or when
Parking Guidance is active.
Function
PRE-SAFE®PLUS intervenes in certain situations if the radar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE®PLUS takes the following measures depending on the hazardous situation
detected:
R
if the radar sensor system detects that a
head-on collision is imminent, the seat
belts are pre-tensioned.
R
if the radar sensor system detects that a
rear-end collision is imminent:
-
the brake pressure is increased if the
driver applies the brakes when the vehicle is stationary.
-
the seat belts are pre-tensioned.
The PRE-SAFE®PLUS braking application is
canceled:
R
if the accelerator pedal is depressed when
a gear is engaged
R
if the risk of a collision passes or is no longer detected
R
if DISTRONIC PLUS indicates an intention
®
to pull away
If the hazardous situation passes without
resulting in an accident, the original settings
are restored.
Automatic measures after an accident
Immediately after an accident, the following
measures are implemented, depending on
the type and severity of the impact:
®
R
the hazard warning lamps are activated
R
the emergency lighting is activated
R
the vehicle doors are unlocked
R
the front side windows are lowered
R
the electrically adjustable steering wheel is
raised
R
the engine is switched off and the fuel supply is cut off
R
vehicles with seat belt extenders: the seatbelt buckles for the outer rear seats are
illuminated and extend forwards
Page 71
R
vehicles with mbrace: automatic emergency call
R
vehicles with the hybrid drive system: the
hybrid system and the high-voltage electrical system are deactivated
Children in the vehicle
WARNING
G
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
69
Children in the vehicle
Important safety notes
Accident statistics show that children
secured in the rear seats are safer than children secured in the front-passenger seat. For
this reason, Mercedes-Benz strongly advises
that you install a child restraint system on a
rear seat. Children are generally better protected there.
If a child younger than 12 years and under 5 ft
(1.50 m) in height is traveling in the vehicle:
R
always secure the child in a child restraint
system suitable for Mercedes-Benz vehicles. The child restraint system must be
appropriate to the age, weight and size of
the child
R
be sure to observe the instructions and
safety notes in this section in addition to
the child restraint system manufacturer's
installation instructions
R
be sure to observe the instructions and
safety notes on the "Occupant classification system (OCS)" (Y page 59)
WARNING
G
If you leave children unsupervised in the vehicle, they could set it in motion by, for example:
R
release the parking brake.
R
shift the automatic transmission out of the
parking position P.
R
start the engine.
In addition, they may operate vehicle equipment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
WARNING
G
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Children may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Protect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting properly. Particular attention must be
paid to children.
Observe the safety notes on the seat belt
(Y page 51) and the notes on correct use of
seat belts (Y page 53).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
41 lbs (18 kg) or until they reach a height
where a lap/shoulder belt can be fastened
properly without a booster seat.
Special seat belt retractor
WARNING
G
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retractor is disabled and the inertia real draws in a
portion of the seat belt. The seat belt cannot
be immediately refastened. There is an
increased risk of injury, possibly even fatal.
Safety
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Children in the vehicle
70
Stop the vehicle immediately, paying attention to road and traffic conditions. Reactivate
the special seat belt retractor and secure the
child restraint system properly.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor.
When activated, the special seat belt retrac-
Safety
tor ensures that the seat belt will not slacken
once the child restraint system has been
secured.
Installing a child restraint system:
X
Always comply with the child restraint system manufacturer's installation instructions.
X
Pull the seat belt smoothly from the belt
outlet.
X
Engage the seat belt tongue in the belt
buckle.
Activating the special seat belt retractor:
X
Pull the seat belt out fully and let the inertia
reel retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is activated.
X
Push the child seat restraint system down
so that the seat belt is tight and does not
loosen.
Removing a child restraint system/deactivating the special seat belt retractor:
X
Always comply with the child restraint system manufacturer's installation instructions.
X
Press the release button on the belt buckle,
hold the belt tongue firmly and guide it back
towards the belt outlet.
The special seat belt retractor is deactivated.
Child restraint system
The use of seat belts and child restraint systems is required by law in:
R
all 50 states
R
the U.S. territories
R
the District of Columbia
R
all Canadian provinces
You can obtain further information about the
correct child restraint system from any
authorized Mercedes-Benz Center.
WARNING
G
If the child restraint system is installed incorrectly on a suitable seat, it cannot protect as
intended. The child cannot then be restrained
in the event of an accident, heavy braking or
sudden changes of direction. There is an
increased risk of injury, possibly even fatal.
Make sure that you observe the child restraint
system manufacturer's installation instructions and the notes on use. Please ensure,
that the base of the child restraint system is
always resting completely on the seat cushion. Never place objects, e.g. cushions, under
or behind the child restraint system. Only use
child restraint systems with the original cover
designed for them. Only replace damaged
covers with genuine covers.
WARNING
G
If the child restraint system is installed incorrectly or is not secured, it can come loose in
the event of an accident, heavy braking or a
sudden change in direction. The child
restraint system could be thrown about, striking vehicle occupants. There is an increased
risk of injury, possibly even fatal.
Always install child restraint systems properly, even if they are not being used. Make
sure that you observe the child restraint system manufacturer's installation instructions.
You will find further information on stowing
objects, luggage or loads under "Loading
guidelines" (Y page 372).
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Children in the vehicle
71
WARNING
G
Child restraint systems or their securing systems which have been damaged or subjected
to a load in an accident can no longer protect
as intended. The child cannot then be
restrained in the event of an accident, heavy
braking or sudden changes of direction. There
is an increased risk of injury, possibly even
fatal.
Replace child restraint systems which have
been damaged or subjected to a load in an
accident as soon as possible. Have the securing systems on the child restraint system
checked at a qualified specialist workshop,
before you install a child restraint system
again.
The securing systems of child restraint systems are:
R
the seat belt system
R
the LATCH-type (ISOFIX) securing rings
R
the Top Tether anchorages
If it is absolutely necessary to carry a child on
the front-passenger seat, be sure to observe
the information on the "Occupant Classification System (OCS)" (Y page 59). There you
will also find information on deactivating the
front-passenger front air bag.
All child restraint systems must meet the following standards:
R
U.S. Federal Motor Vehicle Safety Standards 213 and 225
R
Canadian Motor Vehicle Safety Standards
213 and 210.2
Confirmation that the child restraint system
corresponds to the standards can be found
on an instruction label on the child restraint
system. This confirmation can also be found
in the installation instructions that are included with the child restraint system.
Observe the warning labels in the vehicle interior and on the child restraint system.
Vehicles with seat belt extenders: when
securing a child in a child restraint system on
a rear seat, observe the following instructions:
R
make sure that the seat belt on the child
restraint system is fastened according to
the manufacturer's installation instructions for the child restraint system.
R
for child restraint systems with a belt
clamp: engage the belt tongue in the buckle
before you tighten the seat belt using the
belt clamp.
Vehicles with a rear reclining seat: when
installing a child restraint system, move the
rear reclining seat backrest to an almost vertical position. The rear reclining seat backrest
must rest against the child restraint system.
Observe the notes on the cushion air bag
(Y page 59).
Vehicles with belt bags: only use a child
restraint system which has been approved by
Mercedes-Benz. Always observe the instructions and safety notes on belt bags for the
outer seat belts in the rear (Y page 53).
LATCH-type (ISOFIX) child seat securing system
WARNING
G
LATCH-type (ISOFIX) child restraint systems
do not offer sufficient protective effect for
children whose weight is greater than 48 lbs
(22 kg) who are secured using the safety belt
integrated in the child restraint system. In the
event of an accident, a child might not be
restrained correctly. This poses an increased
risk of injury or even fatal injury.
If the child weighs more than 48 lbs (22 kg),
only use LATCH-type (ISOFIX) child restraint
systems with which the child is also secured
with the vehicle seat belt. Also secure the
child restraint system with the Top Tether
belt, if available.
Safety
Z
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Children in the vehicle
72
Always comply with the manufacturer's
installation and operating instructions for the
child restraint system used.
Before every trip, make sure that the LATCHtype (ISOFIX) child restraint system is
engaged correctly in both LATCH-type (ISOFIX) securing rings
When installing the child restraint system,
!
Safety
make sure that the seat belt for the middle
seat does not get trapped. The seat belt
could otherwise be damaged.
LATCH-type (ISOFIX) securing rings ; on the
rear seats are covered by a Velcro-fastened
upholstered lining :.
X
Vehicles with a rear reclining seat:
adjust the rear reclining seat backrest
down a little before installing the LATCHtype (ISOFIX) child restraint system.
X
Vehicles without rear reclining seat:
fold upholstered lining : upwards.
X
Vehicles with a rear reclining seat:
remove upholstered lining :.
X
Vehicles without a rear reclining seat:
turn the support on the rear side of upholstered lining : by 90°.
Upholstered lining : remains folded
upwards.
X
Install the LATCH-type (ISOFIX) child
restraint system on both LATCH-type (ISOFIX) securing rings ;.
X
Vehicles with a rear reclining seat: move
the rear reclining seat backrest to an
upright position. The rear reclining seat
backrest must rest against the child
restraint system.
WARNING
G
Vehicles with electrically adjustable rear
bench seats:
If you adjust the seat after installing a child
restraint system:
R
the seat belt could slacken or become too
tight
R
the child restraint system could become
loose, incorrectly positioned or damaged
As a result, the child restraint system may not
be able to provide the intended level of protection. This poses an increased risk of injury
or even fatal injury.
Never adjust the seat after installing the child
restraint system.
Vehicles without rear reclining seat: after
you have removed the LATCH-type (ISOFIX)
child restraint system, you must turn the support on the rear side of upholstered lining :
by 90° again. Then fold upholstery lining :
down.
ISOFIX is a standardized securing system for
specially designed child restraint systems on
the rear seats. LATCH-type (ISOFIX) securing
rings ; for two LATCH-type (ISOFIX) child
restraint systems are installed on the left and
right rear seats.
Vehicles with rear seat armrest: adjust the
rear seat armrest so that LATCH-type (ISOFIX) securing rings ; for the LATCH-type
(ISOFIX) child restraint system are accessible.
Non-LATCH-type (ISOFIX) child seats may
also be used and can be installed using the
vehicle's seat belt system. Install the child
seat according to the manufacturer's instructions.
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Children in the vehicle
73
Top Tether
Introduction
Top Tether provides an additional connection
between the child restraint system secured
with a LATCH-type (ISOFIX) child seat mount
and the vehicle. This helps reduce the risk of
injury even further. If the child restraint system is equipped with a Top Tether belt, this
should always be used.
Important safety notes
WARNING
G
If the rear seat backrests are not locked, they
could fold forwards in the event of an accident, heavy braking or sudden changes of
direction. As a result, child restraint systems
cannot perform their intended protective
function. Rear seat backrests that are not
locked can also cause additional injuries, e.g.
in the event of an accident. This poses an
increased risk of injury or even fatal injury.
Always lock rear seat backrests after installing a Top Tether belt. Observe the lock verification indicator. Adjust the rear seat backrests so that they are in an upright position.
display in the instrument cluster. A warning
tone also sounds.
Top Tether anchorages
Safety
The Top Tether anchorage points are installed
in the rear compartment behind the head
restraints on the parcel shelf.
WARNING
G
Vehicles with electrically adjustable rear
bench seats:
If you adjust the seat after installing a child
restraint system:
R
the seat belt could slacken or become too
tight
R
the child restraint system could become
loose, incorrectly positioned or damaged
As a result, the child restraint system may not
be able to provide the intended level of protection. This poses an increased risk of injury
or even fatal injury.
Never adjust the seat after installing the child
restraint system.
If the rear seat backrest is not engaged and
locked, this will be shown in the multifunction
X
Move the head restraint upwards.
X
Fold up cover : of the Top Tether anchorage.
X
Install the LATCH-type (ISOFIX) child
restraint system with Top Tether. Always
comply with the child restraint system
manufacturer's installation instructions
when doing so.
X
Route Top Tether belt ? under the head
restraint between the two head restraint
bars.
X
Hook Top Tether hook = of Top Tether
belt ? into Top Tether anchorage ;.
Make sure that Top Tether belt ? is not
twisted.
Z
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Children in the vehicle
74
X
Tension Top Tether belt ?. Always comply
with the child restraint system manufacturer's installation instructions when doing so.
X
Fold down cover : of the Top Tether
anchorage.
X
If necessary, move the head restraint back
down again slightly (Y page 133). Make
sure that you do not interfere with the cor-
Safety
rect routing of Top Tether belt ?.
Child restraint system on the frontpassenger seat
General notes
Accident statistics show that children
secured in the rear seats are safer than children secured in the front-passenger seat. For
this reason, Mercedes-Benz strongly advises
that you install the child restraint system on a
rear seat.
If it is absolutely necessary to install a child
restraint system on the front-passenger seat,
be sure to observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" (Y page 59).
You can thus avoid the risks that could arise
as a result of:
R
an incorrectly categorized person in the
front-passenger seat
R
the unintentional deactivation of the frontpassenger front air bag
R
the unsuitable positioning of the child
restraint system, e.g. too close to the dashboard
Rearward-facing child restraint system
If it is absolutely necessary to install a rearward-facing child restraint system on the
front-passenger seat, always make sure that
the front-passenger front air bag is deactivated. Only if the PASSENGER AIR BAG OFF
indicator lamp is permanently lit (Y page 50)
is the front-passenger front air bag deactivated.
Always observe the child restraint system
manufacturer's installation and operating
instructions.
Forward-facing child restraint system
If it is absolutely necessary to install a
forward-facing child restraint system on the
front-passenger seat, always move the frontpassenger seat as far back as possible. Fully
retract the seat cushion length. The entire
base of the child restraint system must
always rest on the seat cushion of the frontpassenger seat. The backrest of the child
restraint system must lie as flat as possible
against the backrest of the front-passenger
seat. The child restraint system must not
touch the roof or be subjected to a load by the
head restraint. Adjust the angle of the seat
backrest and the head restraint position
accordingly. Always make sure that the shoulder belt strap is correctly routed from the
vehicle belt outlet to the shoulder belt guide
on the child restraint system. The shoulder
belt strap must be routed forwards and downwards from the vehicle belt outlet. If necessary, adjust the vehicle belt outlet and the
front-passenger seat accordingly.
Always observe the child restraint system
manufacturer's installation and operating
instructions.
Child-proof locks
Important safety notes
WARNING
G
If children are traveling in the vehicle, they
could:
R
open doors, thus endangering other people
or road users
R
exit the vehicle and be caught by oncoming
traffic
R
operate vehicle equipment and become
trapped
There is a risk of an accident and injury.
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Children in the vehicle
75
Always activate the child-proof locks and
override feature if children are traveling in the
vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
Override feature for:
R
the rear doors (Y page 75)
R
the rear side windows (Y page 75)
WARNING
G
If you leave children unsupervised in the vehicle, they could set it in motion by, for example:
R
release the parking brake.
R
shift the automatic transmission out of the
parking position P.
R
start the engine.
In addition, they may operate vehicle equipment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
WARNING
G
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
Child-proof locks for the rear doors
You secure each door individually with the
child-proof locks on the rear doors. A door
secured with a child-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
X
To activate: press the child-proof lock
lever up in the direction of arrow :.
X
Make sure that the child-proof locks are
working properly.
X
To deactivate: press the child-proof lock
lever down in the direction of arrow ;.
Override feature for the rear side windows
Safety
WARNING
G
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Children may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Protect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
X
To activate/deactivate: press button ;.
If indicator lamp : is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the driver's door. If indicator lamp : is off, operation is possible using the switches in the
rear compartment.
Z
Page 78
Driving safety systems
76
When the override feature is activated, the
controls in the rear compartment are disabled
for:
R
the rear side windows
R
adjustment of the front-passenger seat
from the rear compartment
R
the sunblinds:
Safety
-
of the rear side windows
-
of the rear window
-
in the roof
R
COLLISION PREVENTION ASSIST PLUS
(distance warning function and Adaptive
Brake Assist) (Y page 79)
R
ESP®(Electronic Stability Program)
(Y page 81)
R
EBD (Electronic Brake force Distribution)
(Y page 83)
R
ADAPTIVE BRAKE (Y page 84)
R
PRE-SAFE®Brake (Y page 84)
R
STEER CONTROL (Y page 86)
Pets in the vehicle
WARNING
G
If you leave animals unattended or unsecured
in the vehicle, they could press buttons or
switches, for example.
As a result, they could:
R
activate vehicle equipment and become
trapped, for example
R
activate or deactivate systems, thereby
endangering other road users
Unsecured animals could also be flung around
the vehicle in the event of an accident or sudden steering or braking, thereby injuring vehicle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehicle. Always secure animals properly during
the journey, e.g. use a suitable animal transport box.
Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
R
ABS (Anti-lock Braking System)
(Y page 76)
R
BAS (Brake Assist System) (Y page 77)
R
BAS PLUS (Brake Assist System PLUS) with
Cross-Traffic Assist (Y page 77)
Important safety notes
If you fail to adapt your driving style or if you
are inattentive, the driving safety systems can
neither reduce the risk of an accident nor
override the laws of physics. Driving safety
systems are merely aids designed to assist
driving. You are responsible for maintaining
the distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in lane. Always adapt your driving style to
suit the prevailing road and weather conditions and maintain a safe distance from the
vehicle in front. Drive carefully.
The driving safety systems described only
work as effectively as possible when there is
adequate contact between the tires and the
road surface. Please pay special attention to
the notes on tires, recommended minimum
tire tread depths, etc. (Y page 442).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow
chains. Only in this way will the driving safety
systems described in this section work as
effectively as possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the vehicle when braking.
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Driving safety systems
77
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
Important safety notes
Observe the "Important safety notes" sec-
i
tion (Y page 76).
WARNING
G
If ABS is faulty, the wheels could lock when
braking. The steerability and braking characteristics may be severely impaired. Additionally, further driving safety systems are deactivated. There is an increased danger of skidding and accidents.
Drive on carefully. Have ABS checked immediately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (Y page 358) and
display messages which may be shown in the
instrument cluster (Y page 317).
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions. ABS works on slippery surfaces, even
when you only brake gently.
BAS (Brake Assist System)
General information
BAS operates in emergency braking situations. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
Important safety notes
Observe the "Important safety notes" sec-
i
tion (Y page 76).
WARNING
G
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
X
Keep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Safety
Braking
X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking situation is over.
X
To make a full brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication of hazardous road conditions, and functions as a reminder to take extra care while
driving.
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
General information
Observe the "Important safety notes" sec-
i
tion (Y page 76).
BAS PLUS is only available on vehicles with
the Driving Assistance package.
For BAS PLUS to assist you when driving, the
radar sensor system and the camera system
must be operational.
With the help of a sensor system and a camera system, BAS PLUS can detect obstacles:
R
that are in the path of your vehicle for an
extended period of time
R
that cross the path of your vehicle
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Page 80
Driving safety systems
78
In addition, pedestrians in the path of your
vehicle can be detected.
BAS PLUS detects pedestrians by using typical characteristics such as the body contours
and posture of a person standing upright.
If the radar sensor system or the camera system is malfunctioning, BAS PLUS functions
are restricted or no longer available. The
Safety
brake system is still available with complete
brake boosting effect and BAS.
Observe the restrictions described in the
i
"Important safety notes" section“ (Y page 78).
BAS PLUS can help you to minimize the risk of
a collision with a vehicle or a pedestrian and
reduce the effects of such a collision. If BAS
PLUS detects a danger of collision, you are
assisted when braking.
Important safety notes
WARNING
G
BAS PLUS cannot always clearly identify
objects and complex traffic situations.
In such cases, BAS PLUS may:
R
intervene unnecessarily
R
not intervene
There is a risk of an accident.
Always pay careful attention to the traffic situation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
WARNING
G
BAS PLUS does not react:
R
to small people, e.g. children
R
to animals
R
to oncoming vehicles
R
when cornering
As a result, BAS PLUS may not intervene in all
critical situations. There is a risk of an accident.
Always pay careful attention to the traffic situation and be ready to brake.
In the event of snowfall or heavy rain, the recognition can be impaired.
Recognition by the radar sensor system is
also impaired in the event of:
R
there is dirt on the sensors or anything else
covering the sensors
R
there is interference by other radar sources
R
there are strong radar reflections, for
example in parking garages
R
a narrow vehicle traveling in front, e.g. a
motorbike
R
a vehicle traveling in front on a different line
R
vehicles quickly moving into the radar sensor system detection range
Recognition by the camera system is also
impaired in the event of:
R
dirt on the camera or if the camera is covered
R
there is glare on the camera system, e.g.
from the sun being low in the sky
R
darkness
R
if:
-
pedestrians move quickly, e.g. into the
path of the vehicle
-
the camera system no longer recognizes
a pedestrian as a person due to special
clothing or other objects
-
a pedestrian is concealed by other
objects
-
the typical outline of a person is not distinguishable from the background
Following damage to the front end of the vehicle, have the configuration and operation of
the radar sensors checked at a qualified specialist workshop. This also applies to collisions at low speeds where there is no visible
damage to the front of the vehicle.
Following damage to the windshield, have the
configuration and operation of the camera
system checked at a qualified specialist workshop.
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Driving safety systems
79
Function
To avoid a collision, BAS PLUS calculates the
brake force necessary if:
R
you approach an obstacle, and
R
BAS PLUS has detected a risk of collision
When driving at a speed under 20 mph
(30 km/h): if you depress the brake pedal,
BAS PLUS is activated. The increase in brake
pressure will be carried out at the last possible moment.
When driving at a speed above 20 mph
(30 km/h): if you depress the brake pedal
sharply, BAS PLUS automatically raises the
brake pressure to a value adapted to the traffic situation.
BAS PLUS provides braking assistance in hazardous situations with vehicles in front within
a speed range between 4 mph (7 km/h) and
155 mph (250 km/h).
At speeds of up to approximately 44 mph
(70 km/h), BAS PLUS can react to:
R
stationary objects in the path of your vehicle, e.g. stopped or parked vehicles
R
pedestrians in the path of your vehicle
R
objects crossing your path and that are
recognized in the detection range of the
sensors
If BAS PLUS demands particularly high
i
braking force, preventative passenger protection measures (PRE-SAFE®) are activated simultaneously.
X
Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS PLUS is deactivated and the brakes function as usual again, if:
R
you release the brake pedal.
R
there is no longer a risk of collision.
R
no obstacle is detected in front of your
vehicle.
R
you depress the accelerator pedal.
R
you activate kickdown.
COLLISION PREVENTION ASSIST
PLUS
General information
COLLISION PREVENTION ASSIST PLUS consists of a distance warning function with an
autonomous braking function and adaptive
Brake Assist.
COLLISION PREVENTION ASSIST PLUS can
help you to minimize the risk of a front-end
collision with a vehicle ahead or reduce the
effects of such a collision.
If COLLISION PREVENTION ASSIST PLUS
detects that there is a risk of a collision, you
will be warned visually and acoustically. If you
do not react to the visual and audible collision
warning, autonomous braking can be initiated
in critical situations. If you apply the brake
yourself in a critical situation, the COLLISION
PREVENTION ASSIST PLUS adaptive Brake
Assist assists you.
Important safety notes
In particular, the detection of obstacles can
be impaired if:
R
there is dirt on the sensors or anything else
covering the sensors
R
there is snow or heavy rain
R
there is interference by other radar sources
R
there are strong radar reflections, for
example in parking garages
R
a narrow vehicle traveling in front, e.g. a
motorbike
R
a vehicle traveling in front on a different line
R
new vehicles or after a service on the COLLISION PREVENTION ASSIST PLUS system
Observe the notes in the section on breaking-in (Y page 188).
Following damage to the front end of the vehicle, have the configuration and operation of
the radar sensor checked at a qualified specialist workshop. This also applies to collisions at low speeds where there is no visible
damage to the front of the vehicle.
Safety
Z
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Driving safety systems
80
Distance warning function
Important safety notes
Observe the "Important safety notes" sec-
i
tion for driving safety systems (Y page 76).
WARNING
G
The distance warning function does not react:
Safety
R
to people or animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic situation and be ready to brake.
WARNING
G
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
R
give an unnecessary warning
R
not give a warning
There is a risk of an accident.
Always pay careful attention to the traffic situation and do not rely solely on the distance
warning function.
Function
X
To activate/deactivate: activate or deactivate the distance warning function in the
on-board computer (Y page 309).
If the distance warning function is not activated, the æ symbol appears in the assistance graphics display.
The distance warning function can help you to
minimize the risk of a front-end collision with
a vehicle ahead or reduce the effects of such
a collision. If the distance warning function
detects that there is a risk of a collision, you
will be warned visually and acoustically.
Starting at a speed of around 4 mph (7 km/h),
the distance warning function warns you if
you rapidly approach a vehicle in front. An
intermittent warning tone will then sound,
and the · distance warning lamp will light
up in the instrument cluster.
X
Brake immediately in order to increase the
distance from the vehicle in front.
or
X
Take evasive action, provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving conditions may also cause the system to display a
warning.
With the help of the radar sensor system, the
distance warning function can detect obstacles that are in the path of your vehicle for an
extended period of time.
Up to a speed of around 44 mph (70 km/h),
the distance warning function can also react
to stationary obstacles, such as stopped or
parked vehicles.
If you approach an obstacle and the distance
warning function detects a risk of a collision,
the system will initially alert you both visually
and acoustically.
Autonomous braking function
If the driver does not react to the distance
warning signal in a critical situation, COLLISION PREVENTION ASSIST PLUS can assist
with the autonomous braking function.
The autonomous braking function:
R
gives the driver more time to react to critical driving situations
R
can help the driver to avoid an accident or
R
reduces the effects of an accident
The autonomous braking function is available
in the following speed ranges:
R
from 5 mph (7 km/h) to approx. 65 mph
(105 km/h) for moving objects
R
from 5 mph (7 km/h) to approx. 31 mph
(50 km/h) for stationary objects
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Driving safety systems
81
If the autonomous braking function requires a
particularly high braking force, preventative
passenger protection measures (PRE-SAFE®)
are activated simultaneously.
Adaptive Brake Assist
Observe the "Important safety notes" sec-
i
tion (Y page 76).
Adaptive Brake Assist provides braking assistance in hazardous situations at speeds
above 4 mph (7 km/h). It uses radar sensor
technology to assess the traffic situation.
Always pay careful attention to the traffic situation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
WARNING
G
Adaptive Brake Assist does not react:
R
to people or animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
As a result, the Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic situation and be ready to brake.
brake system remains available with full
brake boosting effect and BAS.
With the help of adaptive Brake Assist, the
distance warning signal can detect obstacles
that are in the path of your vehicle for an
extended period of time.
If adaptive Brake Assist detects a risk of collision with the vehicle in front, it calculates
the braking force necessary to avoid a collision. If you apply the brakes forcefully, adaptive Brake Assist will automatically increase
the braking force to a level suitable for the
traffic conditions.
X
Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
R
you release the brake pedal.
R
there is no longer any danger of a collision.
R
no obstacle is detected in front of your
vehicle.
Adaptive Brake Assist is then deactivated.
If adaptive Brake Assist demands particularly
high braking force, preventative passenger
protection measures (PRE-SAFE®) are activated simultaneously.
Up to a speed of approximately 155 mph
(250 km/h), adaptive Brake Assist is capable
of reacting to moving objects that have
already been detected as such at least once
over the period of observation.
Up to a speed of approximately 44 mph
(70 km/h), adaptive Brake Assist reacts to
stationary obstacles.
ESP®(Electronic Stability Program)
Safety
Due to the nature of the system, particularly
complicated but non-critical driving conditions may also cause Brake Assist to intervene.
If adaptive Brake Assist is not available due to
a malfunction in the radar sensor system, the
General notes
Observe the "Important safety notes" sec-
i
tion (Y page 76).
ESP®monitors driving stability and traction,
i.e. power transmission between the tires and
the road surface.
Z
Page 84
Driving safety systems
82
If ESP®detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. The engine output is also modified to
keep the vehicle on the desired course within
physical limits. ESP®assists the driver when
pulling away on wet or slippery roads. ESP
can also stabilize the vehicle during braking.
Safety
ETS/4ETS (Electronic Traction System)
Observe the "Important safety notes" sec-
i
tion (Y page 76).
ETS traction control is part of ESP®. On vehicles with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels individually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transferred to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP®.
Important safety notes
WARNING
G
If ESP®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further driving safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP®checked at a
qualified specialist workshop.
Vehicles without 4MATIC: observe the notes
on ESP®(Y page 437) when towing the vehicle with a raised rear axle.
ESP®is only deactivated if the å warning
lamp is lit continuously.
If the ÷ warning lamp lights up continuously, ESP®is not available due to a malfunction.
Observe the information on warning lamps
(Y page 360) and display messages which
may be shown in the instrument cluster
(Y page 317).
Only use wheels with the recommended tire
sizes. Only then will ESP®function properly.
Characteristics of ESP
®
General information
®
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP®is automatically
active.
If ESP®intervenes, the ÷ ESP®warning
lamp flashes in the instrument cluster.
If ESP®intervenes:
X
Do not deactivate ESP®under any circumstances.
X
Only depress the accelerator pedal as far as
necessary when pulling away.
X
Adapt your driving style to suit the prevailing road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle
stops moving. The engine starts automatically when the driver wants to pull away again.
ESP®remains in its previously selected status. Example: if ESP®was deactivated before
the engine was switched off, ESP®remains
deactivated when the engine is switched on
again.
Deactivating/activating ESP
Important safety notes
Observe the "Important safety notes" sec-
i
tion (Y page 76).
You can select between the following states
of ESP®:
R
ESP®is activated.
R
ESP®is deactivated.
WARNING
G
If you deactivate ESP®, ESP®no longer stabilizes the vehicle. There is an increased risk
of skidding and an accident.
®
Page 85
Driving safety systems
83
Only deactivate ESP®in the situations described in the following.
It may be best to deactivate ESP®in the following situations:
R
when using snow chains
R
in deep snow
R
on sand or gravel
Activate ESP®as soon as the situations
i
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehicle if the vehicle starts to skid or a wheel
starts to spin.
Avoid spinning the driven wheels for an
!
extended period with ESP®deactivated.
You could otherwise damage the drivetrain.
Deactivating/activating ESP
®
You can deactivate or activate ESP®via the
on-board computer.
X
To deactivate: (Y page 82).
The å ESP®OFF warning lamp in the
instrument cluster lights up.
X
To activate: (Y page 82).
The å ESP®OFF warning lamp in the
instrument cluster goes out.
Characteristics when ESP®is deactivated
If ESP®is deactivated and one or more wheels
start to spin, the ÷ ESP®warning lamp in
the instrument cluster flashes. In such situations, ESP®will not stabilize the vehicle.
If you deactivate ESP®:
R
ESP®no longer improves driving stability.
R
engine torque is no longer limited and the
drive wheels are able to spin.
The spinning of the wheels results in a cutting action for better traction on loose surfaces.
R
traction control is still activated.
R
ESP®still provides support when you
brake.
Crosswind Assist (vehicles without
MAGIC BODY CONTROL)
General information
Vehicles with MAGIC BODY CONTROL: information on stabilizing the vehicle in the event
of crosswind (Y page 243).
Strong crosswinds can cause your vehicle to
deviate from a straight course. The crosswind
driving assistance function integrated into
ESP®significantly reduces these effects.
ESP®intervenes automatically according to
the direction and intensity of the crosswinds
affecting your vehicle.
ESP intervenes with stabilizing braking to
assist you in keeping the vehicle in the lane.
Crosswind Assist is active at vehicle speeds
above 50 mph (80 km/h) when driving
straight ahead or cornering gently.
Important safety notes
Crosswind Assist does not work if ESP®is
deactivated or disabled because of a malfunction.
EBD (electronic brake force distribution)
General information
EBD monitors and controls the brake pressure on the rear wheels to improve driving
stability while braking.
Important safety notes
Observe the "Important safety notes" sec-
i
tion (Y page 76).
WARNING
G
If EBD is malfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the
risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified specialist workshop.
Safety
Z
Page 86
Driving safety systems
84
Observe information regarding indicator and
warning lamps (Y page 358) as well as display messages (Y page 320).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In addi-
Safety
tion to the braking function, ADAPTIVE BRAKE
also has the HOLD function (Y page 242) and
hill start assist (Y page 192).
PRE-SAFE®Brake
General information
Pay attention to the important safety
i
notes in the "Driving safety systems" section (Y page 76).
PRE‑SAFE®Brake is only available for vehicles with the Driving Assistance package.
For PRE-SAFE®Brake to assist you when driving, the radar sensor system and the camera
system must be switched on and be operational.
With the help of the radar sensor system and
the camera system, PRE-SAFE®Brake can
detect obstacles that are in front of your vehicle for an extended period of time.
In addition, pedestrians in the path of your
vehicle can be detected.
PRE-SAFE®Brake detects pedestrians using
typical characteristics such as the body contours and posture of a person standing
upright.
Observe the restrictions described in the
"Important safety notes" section“ (Y page 84).
PRE-SAFE®Brake can help you to minimize
the risk of a collision with a vehicle ahead or a
pedestrian, and reduce the effects of such a
collision. If PRE-SAFE®Brake has detected a
risk of collision, you will be warned visually
and acoustically as well as by automatic braking.
Important safety notes
WARNING
G
PRE-SAFE®Brake will initially brake your vehicle by a partial application of the brakes if a
danger of collision is detected. There may be
a collision unless you brake yourself. Even
after subsequent full application of the brakes
a collision cannot always be avoided, particularly when approaching at too high a speed.
There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action, provided it is safe to do
so.
WARNING
G
PRE-SAFE®Brake cannot always clearly identify objects and complex traffic conditions.
In these cases, PRE-SAFE®Brake may:
R
give an unnecessary warning and then
brake the vehicle
R
not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE®Brake warns you. Terminate the
intervention in a non-critical driving situation.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a collision, you must apply the brakes yourself.
PRE-SAFE®Brake can also brake the vehicle
automatically under the following conditions:
R
the driver and front-passenger have their
seat belts fastened
and
R
the vehicle speed is between approximately 4 mph (7 km/h) and 124 mph
(200 km/h)
At a speed of up to approximately 44 mph
(70 km/h), PRE-SAFE®Brake can also detect:
R
stationary objects in the path of your vehicle, e.g. stopped or parked vehicles
R
pedestrians in the path of your vehicle
Page 87
Driving safety systems
85
WARNING
G
PRE-SAFE®Brake does not react:
R
to small people, e.g. children
R
to animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
As a result, PRE-SAFE®Brake may neither
give warnings nor intervene in all critical situations. There is a risk of an accident.
Always pay careful attention to the traffic situation and be ready to brake.
In the event of snowfall or heavy rain, the recognition can be impaired.
Recognition by the radar sensor system is
also impaired in the event of:
R
there is dirt on the sensors or anything else
covering the sensors
R
there is interference by other radar sources
R
there are strong radar reflections, for
example in parking garages
R
a narrow vehicle traveling in front, e.g. a
motorbike
R
a vehicle traveling in front on a different line
relative to the center of your vehicle
Recognition by the camera system is also
impaired in the event of:
R
dirt on the camera or if the camera is covered
R
there is glare on the camera system, e.g.
from the sun being low in the sky
R
darkness
R
if:
-
pedestrians move quickly, e.g. into the
path of the vehicle
-
the camera system no longer recognizes
a pedestrian as a person due to special
clothing or other objects
-
a pedestrian is concealed by other
objects
-
the typical outline of a person is not distinguishable from the background
Following damage to the front end of the vehicle, have the configuration and operation of
the radar sensors checked at a qualified specialist workshop. This also applies to collisions at low speeds where there is no visible
damage to the front of the vehicle.
Following damage to the windshield, have the
configuration and operation of the camera
system checked at a qualifiedspecialist workshop.
Function
X
To activate/deactivate: activate or deactivate PRE-SAFE®Brake in the on-board
computer (Y page 309).
If the PRE-SAFE®Brake is not activated, the
æ symbol appears in the multifunction
display.
Starting at a speed of around 4 mph (7 km/h),
this function warns you if you rapidly
approach a vehicle in front. An intermittent
warning tone will then sound and the ·
distance warning lamp will light up in the
instrument cluster.
X
Brake immediately to defuse the situation.
or
X
Take evasive action provided it is safe to do
so.
If there is an increased risk of collision,
i
preventive passenger protection measures
(PRE-SAFE®) are activated.
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking,
up to the point of full brake application. Automatic emergency braking is not performed
until immediately prior to an imminent accident.
You can prevent the intervention of the PRESAFE®Brake at any time by:
R
depressing the accelerator pedal further.
R
activating kickdown.
R
releasing the brake pedal.
Z
Safety
Page 88
Protection against theft
86
The braking action of PRE-SAFE®Brake is
ended automatically if:
R
you maneuver to avoid the obstacle.
R
there is no longer a risk of collision.
R
there is no longer an obstacle detected in
front of your vehicle.
Safety
STEER CONTROL
General information
STEER CONTROL helps you by transmitting a
noticeable steering force to the steering
wheel in the direction required for vehicle
stabilization.
This steering assistance is provided in particular if:
R
both right wheels or both left wheels are on
a wet or slippery road surface when you
brake.
R
the vehicle starts to skid.
Important safety notes
Observe the "Important safety notes" sec-
i
tion (Y page 76).
No steering support is provided from STEER
CONTROL, if:
R
ESP®is malfunctioning.
R
the lighting is faulty.
Power steering will, however, continue to
function.
Protection against theft
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
X
To activate with the SmartKey: remove
the SmartKey from the ignition lock.
X
To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X
To deactivate: switch on the ignition.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Anyone can start the engine if a valid SmartKey
has been left inside the vehicle.
The immobilizer is always deactivated
i
when you start the engine.
In the event that 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)
X
To arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp : flashes. The alarm system is armed after approximately
15 seconds.
X
To disarm: unlock the vehicle with the
SmartKey or KEYLESS-GO.
or
X
Insert the SmartKey into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R
a door
R
the vehicle with the mechanical key
R
the trunk lid
R
the hood
Page 89
X
To turn the alarm off with the SmartKey:
press the % or & button on the
SmartKey.
The alarm is switched off.
or
X
Remove the Start/Stop button from the
ignition lock.
X
Insert the SmartKey into the ignition lock.
The alarm is switched off.
X
To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The SmartKey must be outside the vehicle.
The alarm is switched off.
or
X
Press the Start/Stop button on the dashboard. The SmartKey must be inside the
vehicle.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that triggered it, for
example.
i If the alarm stays on for more than
30 seconds, the mbrace emergency call
system automatically sends a message to
the Customer Assistance Center. This is
done either by text message or data connection. The emergency call system sends
the message or data provided that:
R
you have subscribed to the mbrace service.
R
the mbrace service has been activated
properly.
R
the necessary mobile phone network is
available.
Protection against theft
87
Safety
Z
Page 90
88
Page 91
Useful information .............................. 90
models and all standard and optional equipment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
Read the information on qualified special-
i
ist workshops (Y page 29).
SmartKey
Important safety notes
Opening and closing
WARNING
G
If children are left unsupervised in the vehicle,
they could:
R
open the doors, thus endangering other
people or road users.
R
get out and disrupt traffic.
R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R
release the parking brake.
R
shifting the automatic transmission out of
park position P
R
Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Do not attach any heavy or large objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
Keep the SmartKey away from strong
!
magnetic fields. Otherwise, the remote
control function could be affected.
Strong magnetic fields can occur in the
vicinity of powerful electrical installations.
Do not keep the SmartKey:
R
with electronic devices, e.g. a mobile
phone or another SmartKey
R
with metallic objects, e.g. coins or metal
foil
R
inside metallic objects, e.g. a metal case
This can affect the functionality of the
SmartKey.
Do not keep the SmartKey in the temperature-controlled cup holder (Y page 380). On
vehicles with the KEYLESS-GO start function,
do not keep it on the parcel shelf or in the
trunk. Otherwise, the SmartKey may not be
detected, e.g. when starting the engine using
the Start/Stop button.
A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid SmartKey is in the vehicle. This occurs, for example:
R
when starting the engine
R
whilst driving
R
when using HANDS-FREE ACCESS
R
when the external door handles are
touched
R
during convenience closing
WARNING
G
If you attach heavy or large objects to the
SmartKey, the SmartKey could be unintentionally turned in the ignition lock. This could
cause the engine to be switched off. There is a
risk of an accident.
Page 93
SmartKey functions
:
& To lock the vehicle
;
F To open/close the trunk lid
=
% To unlock the vehicle
X
To unlock centrally: press button =.
If you do not open the vehicle within
approximately 40 seconds of unlocking:
R
the vehicle is locked again.
R
the anti-theft alarm system is armed
again.
X
To lock centrally: press button :.
The SmartKey centrally locks/unlocks:
R
the doors
R
the trunk lid
R
the fuel filler flap
The turn signals flash once when unlocking
and three times when locking.
You can also set an audible signal to con-
i
firm that the vehicle has been locked. The
audible signal can be activated and deactivated using COMAND (see the separate
operating instructions).
When the surround lighting is activated in
i
COMAND, it comes on when it is dark after
the vehicle is unlocked using the remote
control. Information on activating and
deactivating the surround lighting can be
found in the separate operating instructions.
SmartKey
X
To open the trunk lid automatically
from outside the vehicle: press and hold
button ; until the trunk lid opens.
KEYLESS-GO
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle.
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry
the SmartKey with you. You can combine the
functions of KEYLESS-GO with those of a conventional SmartKey. Unlock the vehicle by
using KEYLESS-GO, for instance, and lock it
using the & button on the SmartKey.
The driver's door and the door at which the
handle is used, must both be closed. The
SmartKey must be outside the vehicle. When
locking or unlocking with KEYLESS-GO, the
distance between the SmartKey and the corresponding door handle must not be greater
than 3 ft (1 m).
A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid SmartKey is in the vehicle. This occurs, for example:
R
when starting the engine
R
whilst driving
R
when using HANDS-FREE ACCESS
R
when the external door handles are
touched
R
during convenience closing
91
Opening and closing
Z
Page 94
SmartKey
92
X
To unlock the vehicle: touch the inner
surface of the door handle.
X
To lock the vehicle: touch sensor surface : or ;.
Make sure that you do not touch the inner
surface of the door handle.
Opening and closing
X
Convenience closing feature: touch
recessed sensor surface ; for an extended period.
Further information on the convenience
closing feature (Y page 108).
X
To unlock the trunk lid: pull the handle on
the trunk lid.
Deactivating
If you do not intend to use the vehicle for a
longer period of time, you can deactivate KEYLESS-GO. The SmartKey will then use very little power, thereby conserving battery power.
For the purposes of activation/deactivation,
the vehicle must not be nearby.
X
To deactivate: press the & button on
the SmartKey twice in rapid succession.
The battery check lamp of the SmartKey
lights up twice briefly and KEYLESS-GO is
deactivated.
X
To activate: press any button on the
SmartKey or insert the SmartKey into the
ignition lock.
KEYLESS-GO and all of its associated features are available again.
KEYLESS-GO start function
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle.
Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door
and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you frequently travel on your own.
X
To change the setting: press and hold
down the % and & buttons simultaneously for approximately six seconds until
the battery check lamp flashes twice
(Y page 94).
i If the setting of the locking system is
changed within the signal range of the vehicle, pressing the & or % button:
R
locks or
R
unlocks the vehicle
The SmartKey now functions as follows:
X
To unlock the driver's door: press the
% button once.
X
To unlock centrally: press the % but-
ton twice.
X
To lock centrally: press the & button.
The KEYLESS-GO function is changed as follows:
X
To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X
To unlock centrally: touch the inner surface of the door handle on the frontpassenger door or the rear door.
X
To lock centrally: touch the outer sensor
surface on one of the door handles.
X
To restore the factory settings: press
and hold down the % and & buttons
simultaneously for approximately six sec-
Page 95
SmartKey
93
onds until the battery check lamp flashes
twice (Y page 94).
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 86).
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
X
To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
SmartKey battery
Important safety notes
WARNING
G
Batteries contain toxic and corrosive substances. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
Environmental note
H
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified specialist workshop or a special
collection point for used batteries.
Opening and closing
X
Push release catch : in the direction of
the arrow and at the same time remove
mechanical key ; from the SmartKey.
For further information about:
R
unlocking the driver's door (Y page 98)
R
unlocking the trunk (Y page 105)
R
locking the vehicle (Y page 99)
Inserting the mechanical key
X
Push mechanical key ; completely into
the SmartKey until it engages and release
catch : is back in its basic position.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
Z
Page 96
94
SmartKey
Checking the battery
X
Press the & or % button.
The battery is working properly if battery
check lamp : lights up briefly.
The battery is discharged if battery check
lamp : does not light up briefly.
Opening and closing
X
Change the battery (Y page 94).
i If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the & or % button:
R
locks or
R
unlocks the vehicle
You can get a battery at any qualified spe-
i
cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
X
Take the mechanical key out of the SmartKey (Y page 93).
opens. Do not hold battery compartment
cover : closed while doing so.
X
Remove battery compartment cover :.
X
Repeatedly tap the SmartKey against your
palm until battery = falls out.
X
Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth
to do so.
X
Make sure that the surface of the battery is
free of lint, grease and other contaminants.
X
Insert the front tabs of battery compartment cover : into the housing first and
then press to close it.
X
Insert mechanical key ; into the SmartKey.
X
Check the function of all SmartKey buttons
on the vehicle.
X
Press mechanical key ; into the opening
in the SmartKey in the direction of the
arrow until battery compartment cover :
Page 97
Problems with the SmartKey
SmartKey
95
Problem
You can no longer lock
or unlock the vehicle
using the SmartKey.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.
Possible causes/consequences and MM Solutions
The SmartKey battery is discharged or nearly discharged.
X
Check the SmartKey battery (Y page 94) and replace it if necessary (Y page 94).
If this does not work:
X
Unlock (Y page 98) or lock (Y page 99) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
X
Unlock (Y page 98) or lock (Y page 99) the vehicle using the
mechanical key.
The SmartKey is faulty.
X
Unlock (Y page 98) or lock (Y page 99) the vehicle using the
mechanical key.
X
Have the SmartKey checked at a qualified specialist workshop.
KEYLESS-GO was deactivated.
X
Reactivate KEYLESS-GO (Y page 91).
The SmartKey battery is discharged or nearly discharged.
X
Check the SmartKey battery (Y page 94) and replace it if necessary (Y page 94).
If this does not work:
X
Unlock (Y page 98) or lock (Y page 99) the vehicle using the
mechanical key.
Opening and closing
There is interference from a powerful source of radio waves.
X
Unlock (Y page 98) or lock (Y page 99) the vehicle using the
mechanical key.
KEYLESS-GO is malfunctioning.
X
Lock/unlock the vehicle using the remote control function of
the SmartKey.
X
Have the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote
control function:
X
Lock (Y page 98) or unlock (Y page 99) the vehicle using the
mechanical key.
X
Have the vehicle and SmartKey checked at a qualified specialist
workshop.
Z
Page 98
96
SmartKey
Problem
The engine cannot be
started using the
SmartKey.
The engine cannot be
started using the Start/
Stop button. The
SmartKey is in the vehi-
Opening and closing
cle.
Possible causes/consequences and MM Solutions
The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X
Check the starter battery and charge it if necessary
(Y page 430).
or
X
Jump-start the vehicle (Y page 432).
or
X
Consult a qualified specialist workshop.
The vehicle is locked.
X
Unlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
X
Check the SmartKey battery (Y page 94) and replace it if necessary (Y page 94).
If this does not work:
X
Start your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock.
You have lost a SmartKey.
You have lost the
mechanical key.
X
Have the SmartKey deactivated at a qualified specialist workshop.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
Page 99
Doors
Important safety notes
WARNING
G
If children are left unsupervised in the vehicle,
they could:
R
open the doors, thus endangering other
people or road users.
R
get out and disrupt traffic.
R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R
release the parking brake.
R
shifting the automatic transmission out of
park position P
R
Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
You should preferably place luggage or loads
in the trunk. Observe the loading guidelines
(Y page 372).
Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked. You can only open
the rear doors from inside the vehicle if they
are not secured by the child-proof locks
(Y page 75). If the vehicle has been locked
with the SmartKey or with KEYLESS-GO,
opening a door from the inside will trigger the
anti-theft alarm system. Switch off the alarm
(Y page 86).
Doors
X
To unlock and open a front door: pull
door handle ;.
If the door is locked, locking knob : pops
up. The door is unlocked and opens.
X
To unlock a rear door: pull door handle ;.
Locking knob : pops up and the door
unlocks.
X
To open a rear door: pull door handle ;
again.
The door opens.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock and unlock the vehicle
from the inside. The buttons are located on
both front doors.
X
To unlock: press button :.
X
To lock: press button ;.
If the front-passenger door is closed, the
vehicle locks.
97
Opening and closing
Z
Page 100
98
Doors
If the driver's door is open, the door stays
unlocked.
Meanwhile, the fuel filler flap will not be
locked or unlocked.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the SmartKey or KEYLESS-GO.
The doors can be opened from the inside. You
can only open the rear doors from inside the
vehicle if they are not secured by the childproof locks (Y page 75).
If the vehicle has been locked with the SmartKey or with KEYLESS-GO, opening a door from
the inside will trigger the anti-theft alarm system. Switch off the alarm (Y page 86).
i If a locked door is opened from the inside,
the previous unlock status of the vehicle
Opening and closing
will be taken into consideration if:
R
the vehicle was locked using the locking
button for the central locking, or
R
if the vehicle was locked automatically
The vehicle will be fully unlocked if it had
previously been fully unlocked. If only the
driver's door had been previously
unlocked, only the door which has been
opened from the inside is unlocked.
If you press one of the two buttons and do
i
not hear a tone, the relevant setting has
already been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore be locked out if:
R
the vehicle is being pushed.
R
the vehicle is being towed.
R
the vehicle is on a roller dynamometer.
You can switch the automatic locking
i
function on and off using COMAND (see the
separate operating instructions).
Power closing
Power closing pulls the doors and trunk lid
into their locks automatically even if they are
only partly closed.
X
To power close a door: push the door into
the lock up to the first detent position.
Power closing will pull the door fully closed.
X
To power close the trunk lid: lightly push
the trunk lid closed.
The power closing function pulls the trunk
lid closed.
Automatic locking feature
X
To deactivate: press and hold button :
for about five seconds until a tone sounds.
X
To activate: press and hold button ; for
about five seconds until a tone sounds.
Unlocking the driver's door (mechanical key)
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
X
Take the mechanical key out of the SmartKey (Y page 93).
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