Order No. 6515 1326 13 Part No. 209 584 98 96 USA Edition A 2008
CLK-Class
Page 2
CLK 350
CLK 550
CLK63AMG
Page 3
Our company and staff congratulate you
on the purchase of your new
Mercedes-Benz.
앫 Please read this manual carefully, then
return it to your vehicle where it will be
handy for your reference.
Your selection of our product is a demonstration of your trust in our company
name. Furthermore, it exemplifies your
desire to own an automobile that will be as
easy as possible to operate and provide
years of service.
Your Mercedes-Benz represents the efforts of many skilled engineers and craftsmen. To help assure your driving pleasure,
and also the safety of you and your passengers, we ask you to make a small investment of time:
앫 Please follow the recommendations
contained in this manual. They are designed to acquaint you with the operation of your Mercedes-Benz.
앫 Please pay attention to the warnings
and cautions contained in this manual.
They are designed to help improve the
safety of the vehicle operator and
occupants.
We extend our best wishes for many miles
of safe, pleasurable driving.
Please observe the following in your own
best interest:
We recommend using Genuine
Mercedes-Benz Parts as well as conversion
parts and accessories explicitly approved
by us for your vehicle model.
We have tested these parts to determine
their reliability, safety and special
suitability for Mercedes-Benz vehicles.
We are unable to make an assessment for
other products and therefore cannot be
held responsible for them, even if in individual cases an official approval or authorization by governmental or other agencies
should exist. Use of such parts and accessories could adversely affect the safety,
performance or reliability of your vehicle.
Please do not use them.
Introduction
Product information
Genuine Mercedes-Benz Parts as well as
conversion parts and accessories
approved by us are available at any
authorized Mercedes-Benz Center where
you will receive comprehensive information, also on permissible technical modifications, and where proper installation will
be performed.
9
Page 11
Introduction
Operator’s Manual
This Operator’s Manual contains a great
deal of useful information. We urge you to
read it carefully and familiarize yourself
with the vehicle before driving.
For your own safety and longer service life
of the vehicle, we urge you to follow the instructions and warnings contained 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 Mercedes-Benz Limited Warranty.
Your vehicle may have some or all of the
equipment described in this manual.
Therefore, you may find explanations for
optional equipment not installed in your
vehicle. If you have any questions about
the operation of any equipment, any
authorized Mercedes-Benz Center will be
glad to demonstrate the proper procedures.
We continuously strive to improve our
product, and ask for your understanding
that we reserve the right to make changes
in design and equipment. Therefore, information, illustrations and descriptions in
this Operator’s Manual might differ from
your vehicle.
Optional equipment is also described in
this manual, including operating instructions wherever necessary. Since they are
special-order items, the descriptions and
illustrations herein may vary slightly from
the actual equipment of your vehicle.
If there are any equipment details that are
not shown or described in this Operator’s
Manual, any authorized Mercedes-Benz
Ce nter wil l be glad to i nform y ou o f correc t
care and operating procedures. The
Operator’s Manual and Maintenance
Booklet are important documents and
should be kept with the vehicle.
Service and warranty information
The Service and Warranty Information
Booklet contains detailed information
about the warranties covering your
Mercedes-Benz, including:
앫 New Car Limited Warranty
앫 Emission System Warranty
앫 Emission Performance Warranty
앫 California, Maine, Massachusetts, and
Vermont Emission Control System
Warranty
(California, Maine, Massachusetts, and
Vermont only)
앫 State Warranty Enforcement Laws
(Lemon Laws)
10
Page 12
Introduction
Operator’s Manual
Important notice for California retail
buyers and lessees of Mercedes-Benz
automobiles
Under California law you may be entitled to
a replacement of your vehicle or a refund
of the purchase price or lease price, if
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 after a reasonable
number of repair attempts. During the period of 18 months from original delivery of
the vehicle or the accumulation of
18000 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 mal-
function 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 mal-
function 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.
Written notification should not be sent to a
dealer, it should be addressed to
Mercedes-Benz USA, LLC
Customer Assistance Center
One Mercedes Drive
Montvale, NJ 07645-0350
11
Page 13
Introduction
Operator’s Manual
Maintenance
The Maintenance Booklet describes all the
necessary maintenance work which should
be performed at regular intervals.
Always have the Maintenance Booklet with
you when you take the vehicle to an
authorized Mercedes-Benz Center for service. The service advisor will record each
service in the booklet for you.
Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program provides factory trained technical
help in the event of a breakdown. Calls to
the toll-free Roadside Assistance number
1-800-FOR-MERCedes (in the USA)
1-800-387-0100 (in Canada)
will be answered by Mercedes-Benz
Customer Assistance Representatives
24 hours a day, 365 days a year.
For additional information refer to the
Mercedes-Benz Roadside Assistance
Program Brochure in your vehicle literature
portfolio.
Change of address or ownership
If you change your address, be sure to
send in the “Change of Address Notice”
found in the Service and Warranty
Information Booklet, or simply call the
Mercedes-Benz Customer Assistance
Center (in the USA) at
1-800-FOR-MERCedes, or Customer
Service (in Canada) at 1-800-387-0100. It
is in your own interest that we can contact
you should the need arise.
If you sell your Mercedes, please leave all
literature with the vehicle to make it available to the next operator.
If you bought this vehicle used, be sure to
send in the “Notice of Purchase of Used
Car” found in the Service and Warranty
Information Booklet, or call the
Mercedes-Benz Customer Assistance
Center (in the USA) at
1-800-FOR-MERCedes, or Customer
Service (in Canada) at 1-800-387-0100.
12
Page 14
Introduction
Operator’s Manual
Operating your vehicle outside the USA
or Canada
If you plan to operate your vehicle in foreign countries, please be aware that:
앫 service facilities or replacement parts
may not be readily available,
앫 unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,
앫 gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.
Certain Mercedes-Benz models are available for delivery in Europe under our European Delivery Program. For details, consult
an authorized Mercedes-Benz Center or
write to:
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
13
Page 15
Introduction
Where to find it
This Operator’s Manual is designed to provide comprehensive support information
for you, the vehicle operator. Each section
has its own reference color.
At a glance
Here you will find an overview of your vehicle’s interior and exterior main features.
Controls in detail
Here you will find detailed information
about the equipment installed in your vehicle. This section expands on the “Getting
started” section and also describes technical innovations. If you are already familiar
with the basic functions of your vehicle,
this section will be of particular interest to
you.
Technical data
All important technical data for your vehicle can be found in this section.
Indexes
The table of contents and the index are designed to help you find information quickly
and easily.
Getting started
Here you will find all the information you
need for your first drive. You should read
this section first if this is your first
Mercedes-Benz vehicle or if you are renting or borrowing this vehicle.
Safety and Security
Here you will find descriptions of the safety
and security features of your vehicle.
14
Operation
Here you will find all the information you
need for the proper operation of your
vehicle.
Practical hints
This section provides fast assistance for
dealing with problems you may encounter.
The following publications are part of your
vehicle documentation:
앫 this Operator’s Manual
앫 the Maintenance Booklet
Separate operating instructions will be
provided as required depending on the
equipment options installed in your
vehicle.
Page 16
왔 Symbols
Trademarks:
®
앫 ESP
앫 HomeLink
앫 SIRIUS and related marks are trade-
is a registered trademark of
DaimlerChrysler.
®
is a registered trademark
of Prince, a Johnson Controls
Company.
marks of SIRIUS Satellite Radio Inc.
The following symbols are found in this
Operator’s Manual:
*Optional equipment is identified
with an asterisk. Since standard
equipment varies between models,
the descriptions and illustrations in
this manual may differ slightly from
the actual equipment of your
vehicle.
Warning!G
Introduction
Symbols
왘 This symbol points to instructions for
you to follow.
왘 A number of these symbols appearing
in succession indicates a multiple-step
procedure.
컄 pageThis symbol tells you where to
look for further information on a
topic.
컄컄This continuation symbol marks
a warning which is continued on
the next page.
Warning notices draw your attention to hazards that may endanger your health or life,
or the health or life of others.
Highlights hazards that may result in dam-
!
age to your vehicle.
Helpful hints or further information you may
i
find useful.
컄컄This continuation symbol marks
a procedure which is continued
on the next page.
->This symbol is used to indicate
cross-references to term definitions.
Display
Words appearing in the multifunction display and Audio display are printed in the type
shown here.
15
Page 17
Introduction
Operating safety
Warning!G
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because
the vehicle’s electronic components are
interconnected, any modifications made
may produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
See an authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore
never turn off the engine while driving.
Warning!G
Heavy blows against the vehicle underbody
or tires / wheels, for example when running
over an obstacle, road debris or a pothole,
may cause serious damage to and impair the
operating safety of your vehicle. If you feel a
sudden significant vibration or ride disturbance, or you suspect that damage to your
vehicle has occurred, you should turn on
your hazard warning flashers, carefully slow
down, and drive with caution to an area
which is a safe distance from the road.
Inspect the vehicle underbody and
tires / wheels for possible damage. If the
vehicle appears unsafe, have it towed to the
nearest authorized Mercedes-Benz Center
or other qualified maintenance or repair
facility for further inspection or repairs.
Proper use of the vehicle
Proper use of the vehicle requires that you
are familiar with the following information
and rules:
앫 the safety precautions in this manual
앫 the “Technical data” section in this
manual
앫 traffic rules and regulations
앫 motor vehicle laws and safety
standards
Warning!G
Various warning labels are attached to your
vehicle. These warning labels are intended
to make you and others aware of various
risks. You should not remove any of these
warning labels unless explicitly instructed to
do so by information on the label itself.
Removal of any of these labels may cause
you and others to be unaware of certain
risks which may result in an accident and/or
personal injury.
16
Page 18
Introduction
Problems with your vehicle
왔 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
immediately contact an authorized Mercedes-Benz Center to have the problem diagnosed and corrected if required. If the matter is
not handled to your satisfaction, please discuss the problem with the Mercedes-Benz Center management, or if necessary 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
Toronto, Ontario M4G 4C9
17
Page 19
Introduction
Reporting safety defects
For the 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”.
Reporting safety defects
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: 1-800-426-9153);
go to http://www.safecar.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.safecar.gov.
18
Page 20
Introduction
Vehicle data recording
왔 Vehicle data recording
Information regarding electronic
recording devices
(Including notice pursuant to California Code § 9951)
Please note that your vehicle is equipped with devices that can record vehicle systems data and, if equipped with the Tele Aid system,
may transmit some data in certain accidents.
This information helps, for example, to diagnose vehicle systems after a collision and to continuously improve vehicle safety.
DaimlerChrysler may access the information and share it with others
앫 for safety research or vehicle diagnosis purposes
앫 with the consent of the vehicle owner or lessee
앫 in response to an official request by law enforcement or other government agency
앫 for use in dispute resolution involving DaimlerChrysler, its affiliates or sales/service organization and/or
앫 as otherwise required or permitted by law.
Please check the Tele Aid subscription service agreement for details regarding the information that may be recorded or transmitted
via that system.
19
Page 21
20
Page 22
At a glance
Exterior view (Coupe)
Exterior view (Cabriolet)
Cockpit
Instrument cluster
Multifunction steering wheel
Center console
Overhead control panel
Door control panel
21
Page 23
At a glance
Exterior view (Coupe)
22
Page 24
At a glance
Exterior view (Coupe)
ItemPage
1 Trunk
Unlocking
Opening and closing
Minispare wheel
Vehicle tool kit
2 Rear lamps444
3 Rear window, defrosting189
4 Fuel filler flap
Refueling
Gasoline
5 Doors
Locking and unlocking
Opening
Locking/unlocking in an
emergency
36
110,
112
425
423
320
320
492
36, 62,
100
109
427
ItemPage
6 Exterior rear view mirror
Adjusting
Auto-dimming rear view
mirrors
7 Tires and wheels
Checking tire inflation pressure
Run Flat Indicator
(Canada only)
Tire Pressure Monitoring
(USA only)
General information
Vehicle tool kit
Minispare wheel
Flat tire
8 Towing
Installing towing eye bolt
9 Front lamps446
47
186
331
341
342
344
331
422
425
452
469
470
ItemPage
a Hood, opening
Engine oil
Coolant
Battery
b Windshield wipers
Wiper blades, replacing
Wiper blades, cleaning
c Windshield
Front window, defrosting
Cleaning with wiper fluid
Cleaning
d Power tilt/sliding sunroof
Opening and closing
Opening and closing in an
emergency
323
325
328
329
56
450
373
191,
201
57
373
257
430
23
Page 25
At a glance
Exterior view (Cabriolet)
24
Page 26
At a glance
Exterior view (Cabriolet)
ItemPage
1 Trunk
Unlocking
Opening and closing
TIREFIT Kit (CLK 63 AMG)
Minispare wheel
Vehicle tool kit
2 Rear lamps448
3 Rear window, defrosting189
4 Fuel filler flap
Refueling
Gasoline
5 Doors
Locking and unlocking
Locking/unlocking in an
emergency
103
110, 112
422
425
422
320
320
492
36, 62,
100
427
ItemPage
6 Exterior rear view mirror
Adjusting
Auto-dimming rear view
mirrors
7 Tires and wheels
Checking tire inflation
pressure
Run Flat Indicator
(Canada only)
Tire Pressure Monitoring
(USA only)
General information
TIREFIT Kit (CLK 63 AMG)
Vehicle tool kit
Minispare wheel
Flat tire
8 Towing
Installing towing eye bolt
9 Front lamps446
47
186
331
341
342
344
331
452
422
458
452
469
470
ItemPage
a Hood, opening
Engine oil
Coolant
Battery
b Windshield wipers
Wiper blades, replacing
Wiper blades, cleaning
c Windshield
Front window, defrosting
Cleaning with wiper fluid
Cleaning
d Soft top
Opening and closing
Opening and closing in
an emergency
Roll bars
Cleaning
323
325
328
329
56
450
373
191, 201
57
373
260
420
82
370
25
Page 27
At a glance
Cockpit
26
Page 28
At a glance
Cockpit
ItemPage
1 Steering wheel gearshift
180
paddles*
2 Combination switch
앫 Turn signals
앫 Windshield wipers
앫 High beam
56
56
55
3 Cruise control lever267
4 Multifunction steering
wheel
30,
142
5 Instrument cluster28,
138
6 Starter switch38
7 Front Parktronic* warning
271
indicator (Canada all vehicles, USA only CLK 63 AMG
cabriolet)
ItemPage
8 Overhead control panel33
9 Glove box285
a Storage box285
b Center console31, 32
c Hood lock release324
d Horn
e Steering wheel adjustment
45
stalk
f Parking brake pedal53
g Door control panel34
h Parking brake release53
j Exterior lamp switch55,
129
k Exterior rear view mirror ad-
47
justment
l Headlamp washer switch*185
27
Page 29
At a glance
Instrument cluster
28
Page 30
At a glance
Instrument cluster
ItemPage
1 L Left turn signal indica-
56
tor lamp
2 v ESP® warning lamp384
3 Speedometer
4 Multifunction display141
5 l Distance warning
lamp
Warning lamp without function. It illuminates with the ignition on. It should go out
when the engine is running.
6 K Right turn signal indi-
56
cator lamp
7 Coolant temperature
139
indicator with:
• Coolant temperature
382
warning lamp
8 Tachometer with:140
1 Supplemental
Restraint System
64,
387
(SRS) indicator lamp
ItemPage
- Antilock Brake Sys-
378
tem (ABS) indicator
lamp
< Seat belt telltale79,
385
A High beam headlamp
133
indicator lamp
B Low beam headlamp
129
indicator lamp
9 Main odometer with:
앫 Gear selector lever
174
position
앫 Program mode178
a Clock with:140
; Brake warning lamp,
380
USA only
3 Brake warning lamp,
380
Canada only
ItemPage
ú Engine malfunction in-
dicator lamp,
USA only
± Engine malfunction in-
dicator lamp,
Canada only
H Combination low tire
pressure/TPMS
malfunction telltale
C Roll bar warning lamp
(CLK cabriolet)
b Fuel display with:
A Fuel reserve warning
lamp
c Reset button for:
앫 Resetting trip odometer139
앫 Adjusting instrument
cluster illumination
앫 Confirming new time set-
tings
381
381
388
385
385
138
160
29
Page 31
At a glance
Multifunction steering wheel
ItemPage
1 Multifunction display141
Operating control system142
2 Selecting the submenu or
setting the volume:
Press button
æ up / to increase
ç down / to decrease
3 Telephone*:
Press button
s to take a call
to dial a call
t to end a call
to reject an incoming
call
170
170
170
170
ItemPage
4 Menu systems:
Press button
è for next menu
ÿ for previous menu
5 Moving within a menu:
Press button
j for next display
k for previous display
30
Page 32
왔 Center console
Upper part
CLK coupe
ItemPage
1 Seat heater*, driver’s side
Seat ventilation*, driver’s
side
2 Parktronic system* deacti-
vation switch (Canada all
vehicles, USA only CLK 63
AMG cabriolet)
3 Rear window sunshade*
switch (CLK coupe Canada
only)
4 ESP® control switch92
5 Hazard warning flasher
on/off switch
6 Central unlocking switch
Central locking switch
7 Switch for folding
(CLK coupe) or lowering
(CLK cabriolet) rear seat
head restraints
125
126
274
188
135
119
119
121
At a glance
Center console
ItemPage
8 Anti-theft alarm system
indicator lamp
9 Seat heater*,
passenger side
Seat ventilation*,
passenger side
a Front passenger front air
bag off indicator lamp
b Audio system,
or
COMAND* (see separate
operating instructions)
c Climate control
Automatic climate control
Rear window defroster
97
125
126
76,
390
151
190
200
189
31
Page 33
At a glance
Center console
Lower part
CLK cabriolet
ItemPage
1 Ashtray
Cigarette lighter
2 KEYLESS-GO* start/stop
button
3 Cup holder287
4 Storage compartment
with cup holder
and
telephone* compartment
in center armrest.
5 Soft top switch
(CLK cabriolet)
6 Program mode selector
switch for automatic transmission
앫 Automatic shift program
앫 Manual shift program
(CLK 63 AMG cabriolet)
7 Gear selector lever for
automatic transmission
289
290
39
287
288
287
260
178
182
172
32
Page 34
왔 Overhead control panel
CLK coupe
ItemPage
1 Rear interior lighting on/off
(CLK coupe)
2 Power tilt/sliding sunroof*
(CLK coupe)
3 Right reading lamp on/off137
4 Interior lighting control136
5 Interior rear view mirror47,
6 Garage door opener*301
7 Hands-free microphone for
Tele Aid (emergency call
system) and telephone*
8 Left reading lamp on/off137
9 Tele Aid (emergency call
system) button
137
256
185
292
295
At a glance
Overhead control panel
33
Page 35
At a glance
Door control panel
ItemPage
1 Inside door handle109
2 Seat adjustment42,
120
3 Memory function (for stor-
ing seat, exterior mirror and
steering wheel settings)
4 Switches for opening/clos-
ing front door windows
5 Rear window override
switch
6 Switches for opening/clos-
ing rear windows
7 Remote trunk opening
switch
Remote trunk
opening/closing* switch
127
250
88
250
111
111
34
Page 36
Getting started
Unlocking
Adjusting
Driving
Parking and locking
35
Page 37
Getting started
Unlocking
The “Getting started” section provides an
overview of the vehicle’s most basic functions. First-time Mercedes-Benz owners
should pay special attention to the information given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will provide you with further
information. The corresponding page
references are located at the end of each
segment.
Unlocking with the SmartKey
SmartKey with remote control
1 ‹ Lock button
2 Š Opening button for trunk
3 Œ Unlock button
4 Â Panic button (
컄 page 89)
왘 Press unlock button Œ on the
SmartKey.
앫 All turn signal lamps flash once.
앫 An acoustic signal sounds once.
For more information, see “Factory
setting” (
앫 The locking knobs in the doors
컄 page 106).
move up.
앫 The anti-theft alarm system is dis-
armed.
왘 Enter the vehicle and insert the
SmartKey in the starter switch.
36
Page 38
Getting started
Unlocking
Warning!G
When leaving the v ehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
Opening a door causes the windows on that
i
side of the car to open slightly. They will return to
the up position when the door is closed.
For more information, see “SmartKey”
(
컄 page 100).
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without inserting the SmartKey in the starter switch.
To unlock the vehicle, the SmartKey with
i
KEYLESS-GO must be outside the vehicle, no further than approximately 3 feet (1 meter) away
from the door to be opened.
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you, and
lock the vehicle. Do not leave children unattended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an accident and/or serious personal injury.
왘 Pull an outside door handle.
앫 All turn signal lamps flash once.
앫 An acoustic signal sounds once.
For more information, see “Factory
setting” (
앫 The locking knobs in the doors
컄 page 106).
move up.
앫 The anti-theft alarm system is dis-
armed.
왘 Enter the vehicle.
Opening a door causes the windows on that
i
side of the car to open slightly. They will return to
the up position when the door is closed.
For more information, see “SmartKey with
KEYLESS-GO*” (
컄 page 103).
37
Page 39
Getting started
Unlocking
Starter switch positions
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unattended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
SmartKey
0 For removing SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1 Power supply for some electrical
consumers, such as seat adjustment
2 Ignition (power supply for all electrical
consumers) and driving position
All lamps (except low beam headlamp
indicator lamp, high beam headlamp indicator lamp, and turn signal indicator
lamps unless activated) in the instrument cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If
a lamp in the instrument cluster remains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
컄 page 378).
3 Starting position
When you switch on the ignition, the
i
indicator and warning lamps (except low beam
headlamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps
unless activated) in the instrument cluster come
on. The indicator and warning lamps (except low
beam headlamp indicator lamp, high beam headlamp indicator lamp, and turn signal indicator
lamps if activated) will go out when the engine is
running. This indicates that the respective systems are operational.
The SmartKey can only be removed from the
i
starter switch with the gear selector lever in
position P.
If the SmartKey is left in starter switch
i
position 0 for an extended period of time, it can
no longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
SmartKey from starter switch and reinsert.
Starter switch
38
Page 40
Getting started
Unlocking
If the SmartKey cannot be turned in the
!
starter switch, the battery may not be sufficiently charged.
앫 Check the battery and charge it if necessary
(컄 page 464).
앫 Get a jump start (컄 page 467).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.
For more information, see “SmartKey”
(
컄 page 100).
For information on starting the engine using the SmartKey, see “Starting with the
SmartKey” (
컄 page 52).
SmartKey with KEYLESS-GO*
Pressing the KEYLESS-GO start/stop button on the gear selector lever corresponds
to turning the SmartKey to the various
starter positions.
If you firmly depress the brake pedal during pressing the KEYLESS-GO start/stop
button, the engine starts automatically.
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey.
The function of the SmartKey overrules the
i
KEYLESS-GO function.
KEYLESS-GO start/stop button
1 USA only
2 Canada only
The SmartKey with KEYLESS-GO must be
located in the vehicle.
왘 Make sure the gear selector lever is set
to P.
왘 Do not depress the brake pedal.
39
Page 41
Getting started
Unlocking
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status 0 (as with
SmartKey removed).
Position 1
왘 Press the KEYLESS-GO start/stop
button once.
This supplies power for some electrical
consumers, such as seat adjustment.
If you now press the KEYLESS-GO
i
start/stop button
앫 once again, the ignition (position 2) is
switched on.
앫 twice, the power supply is again switched
off.
Ignition (or position 2)
왘 Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers. All the lamps (except low
beam headlamp indicator lamp, high
beam headlamp indicator lamp, and
turn signal indicator lamps unless activated) in the instrument cluster come
on. If a lamp in the instrument cluster
fails to come on when the ignition is
switched on, have it checked and replaced if necessary. If a lamp in the instrument cluster remains on after
starting the engine or comes on while
driving, refer to “Lamps in instrument
cluster” (
If you now press the KEYLESS-GO
i
start/stop button once, the power supply is
again switched off.
컄 page 378).
When you switch on the ignition, the indica-
i
tor and warning lamps (except low beam headlamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps
unless activated) in the instrument cluster come
on. The indicator and warning lamps (except low
beam headlamp indicator lamp, high beam headlamp indicator lamp, and turn signal indicator
lamps if activated) will go out when the engine is
running. This indicates that the respective systems are operational.
For more information, see “SmartKey with
KEYLESS-GO*” (
컄 page 103).
For information on starting the engine
using the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
컄 page 52).
40
Page 42
왔 Adjusting
Getting started
Adjusting
Warning!G
All seat, head restraint, steering wheel, and
rear view mirror adjustments, as well as fastening of seat belts, must be done before
the vehicle is put into motion.
Seats
Warning!G
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat
back in an excessively reclined position as
this can be dangerous. You could slide under the seat belt in a collision. If you slide
under it, the belt would apply force at the abdomen or neck. That could cause serious or
fatal injuries. The seat back and seat belts
provide the best restraint when the wearer
is in a nearly upright position and belts are
properly positioned on the body.
Warning!G
Your seat must be adjusted so that you can
correctly fasten your seat belt.
Observe the following points:
앫 Adjust the backrest until your arms are
slightly angled when holding the steering wheel.
앫 Adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The position should be as far back as possible
with the driver still able to operate
controls properly.
앫 Adjust the head restraint so that it is as
close to the head as possible and the
center of the head restraint supports
the back of the head at eye level.
앫 Never place hands under the seat or
near any moving parts while a seat is being adjusted.
Failure to do so could result in an accident
and/or serious personal injury.
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch, or the SmartKey with KEYLESS-GO*
removed from the vehicle, the power seats
can be operated when the respective door is
open. Therefore, do not leave children unattended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehicle equipment may cause an accident
and/or serious personal injury.
41
Page 43
Getting started
Adjusting
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seating position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriate infant, or toddler restraint, or
booster seat recommended for the size and
weight of the child. For additional
information, see “Children in the vehicle”
(
컄 page 83).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle
and/or the child is not properly secured in
the child restraint.
Seat adjustment
The seat adjustment switches are located
on the respective door.
1 Head restraint height
2 Seat height
3 Seat cushion tilt
4 Seat fore and aft adjustment
5 Backrest tilt
왘 Switch on the ignition (컄 page 38).
or
왘 Open the respective door.
The memory function (컄 page 127) lets you
i
store the settings for the seat position together
with the settings for the steering wheel and the
exterior rear view mirrors.
Seat fore and aft adjustment
왘 Press switch forward or backward in
the direction of arrow 4.
When moving the seats, make sure there are
!
no items in the footwell or behind the seats; otherwise you could damage the seats.
Seat height
왘 Press switch up or down in the direc-
tion of arrow 2.
Seat cushion tilt
왘 Press switch up or down in the direc-
tion of arrow 3 until your upper legs
are lightly supported.
42
Page 44
Getting started
Adjusting
Seat backrest tilt
왘 Press switch forward or backward in
the direction of arrow 5.
Head restraint height
왘 Press switch up or down in the direc-
tion of arrow 1.
Warning!G
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as
close to the head as possible and the center
of the head restraint supports the back of
the head at eye level. This will reduce the potential for injury to the head and neck in the
event of an accident or similar situation.
Head restraint adjusting
Manually adjust the head restraint.
왘 Push or pull the head restraint cushion
to the desired position.
For more information, see “Seats”
(
컄 page 120).
Folding front seat backrests forward
1 Release lever
Folding backrests forward
왘 Pull release lever 1 forward and fold
the backrest forward.
The head restraint will automatically
move down.
43
Page 45
Getting started
Adjusting
Folding backrests back
왘 Fold and press the backrest rearward
until it engages in driving position.
The head restraint returns to its previous position.
In addition to the front seat backrests, the
i
front seat cushions can also be shifted forward
to permit easy access to the rear whenever the
seat is located in the rear half of its adjustment
range. Pivot backrest forward by pulling the release lever until the seat moves in a combined
forward and upward movement.
When moving the seat, make sure there are
!
no items in the footwell or behind the seats. Otherwise you could damage the seats.
Warning!G
The seat belts provide protection only with
the backrest locked in place. Therefore, the
backrest must be locked in place with the
vehicle in motion. Do not drive the vehicle
when the backrest is not locked in place.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
The power seats can also be operated with
the driver’s or passenger door open. Do not
leave children unattended in the vehicle or
with access to an unlocked vehicle. Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
Never place hands under seat or near any
moving parts during a seat adjustment
procedure.
For information on additional convenience
features permitting easy entry and exit,
see “Easy-entry/exit feature” (
컄 page 45).
Steering wheel
Warning!G
Do not adjust the steering wheel while driving. Adjusting the steering wheel while driving could cause the driver to lose control of
the vehicle.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch, or the SmartKey with KEYLESS-GO*
removed from the vehicle, the steering
wheel adjustment feature can be operated
when the driver’s door is open. Therefore,
do not leave children unattended in the vehicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
44
Page 46
Getting started
Adjusting
Steering wheel adjustment
The stalk for steering wheel adjustment is
located on the lower left of steering
column.
1 Adjusting steering column, in or out
2 Adjusting steering column, up or down
왘 Switch on the ignition (컄 page 38).
or
왘 Open the driver’s door.
Adjusting steering column in or out
왘 Move stalk forward or back in direction
of arrow 1 until a comfortable steering wheel position is reached with your
arms slightly bent at the elbow.
Adjusting steering column up or down
왘 Move stalk up or down in direction of
arrow 2.
Make sure your legs can move freely
and all the displays (including malfunction and indicator lamps) on the
instrument cluster are clearly visible.
The memory function (컄 page 127) lets you
i
store settings for the steering wheel together
with the settings for the exterior rear view mirrors and the seat position.
Easy-entry/exit feature
This feature allows for easier entry into and
exit from the vehicle. When entering and
exiting the vehicle, the steering wheel is in
its uppermost position.
The easy-entry/exit feature can be
activated or deactivated in the
Convenience
system (
submenu of the control
컄 page 166).
Warning!G
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/ exit feature is
activated.
To stop steering wheel movement, do one of
the following:
앫 Move steering wheel adjustment stalk
(
컄 page 45).
앫 Press the memory position switch
컄 page 128).컄컄
(
45
Page 47
Getting started
Adjusting
컄컄
Do not leave children unattended in the vehicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
With the easy-entry/exit feature activated,
the steering wheel will return to its last set
position when you:
앫 close the driver’s door with the ignition
switched on,
or
앫 insert the SmartKey into the starter
switch or press the KEYLESS-GO*
start/stop button (
컄 page 39) once
with the driver’s door closed.
The last set steering wheel position is stored
i
when
앫 the ignition is switched off.
앫 the position is stored in memory
(컄 page 128).
With the easy-entry/exit feature activated,
the steering wheel tilts upwards when you:
앫 remove the SmartKey from the starter
switch,
or
앫 open the driver’s door with the
SmartKey in starter switch position 0
or 1 or the KEYLESS-GO* start/stop
button (
If the current position for the steering wheel
i
is in the uppermost tilt position, the steering
wheel will no longer be able to move upward
when the easy-entry/exit feature is activated.
The adjustment procedure is briefly interrupted
when the engine is started.
컄 page 39) in position 1.
Warning!G
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in
motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
46
Page 48
Getting started
Adjusting
Mirrors
Adjust the interior and exterior rear view
mirrors before driving so that you have a
good view of the road and traffic conditions.
Interior rear view mirror
왘 Manually adjust the interior rear view
mirror.
For more information, see “Rear view mirrors” (
컄 page 185).
Exterior rear view mirrors
Warning!G
Exercise care when using the passenger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your
interior rear view mirror or glance over your
shoulder before changing lanes.
The buttons are located above the exterior
lamp switch.
exterior rear view mirror or button 2
for the passenger-side exterior rear
view mirror.
왘 Push adjustment button 1 up, down,
left, or right, according to the desired
setting.
If an exterior rear view mirror was forcibly
!
pushed forward (hit from the rear) or forcibly
pushed rearward (hit from the front), reposition
it by applying firm pressure until it snaps into
place. The mirror housing is now properly positioned and you can adjust the mirror normally.
The memory function (컄 page 127) lets you
i
store the setting for the exterior rear view mirrors together with the settings for the steering
wheel and the driver’s seat position.
At low ambient temperatures, the exterior
i
rear view mirrors will be heated automatically.
For more information, see “Rear view mirrors” (
컄 page 185).
47
Page 49
Getting started
Driving
Warning!G
Make sure absolutely no objects are obstructing the pedals’ range of movement.
Keep the driver’s footwell clear of all obstacles. If there are any floormats or carpets in
the footwell, make sure the pedals still have
sufficient clearance.
During sudden driving or braking maneuvers, the objects could get caught between
or beneath the pedals. You could then no
longer brake or accelerate. This could lead
to accidents and injury.
Fastening the seat belts
Warning!G
Always fasten your seat belt before driving
off. Always make sure your passengers are
properly restrained, even those sitting in the
rear.
Failure to wear and properly fasten and position your seat belt greatly increases your
risk of injuries and their likely severity in an
accident. You and your passengers should
always wear seat belts.
If you are ever in an accident, your injuries
can be considerably more severe without
your seat belt properly buckled. Without
your seat belt buckled, you are much more
likely to hit the interior of the vehicle or be
ejected from it. You can be seriously injured
or killed.
In the same crash, the possibility of injury or
death is lessened if you are wearing your
seat belt. The air bags can only provide the
protection they where designed to afford if
the occupants are using their seat belts
(
컄 page 64).
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seating position. Thus, we strongly recommend
that children be placed in the rear seats.
Regardless of seating position, children
12 years old and under must be seated and
properly secured in an appropriate infant
restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child. For additional information, see “Children in the vehicle” (
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle
and/or the child is not properly secured in
the child restraint.
컄 page 83).
48
Page 50
Warning!G
Never let more people ride in the vehicle
than there are seat belts available. Be sure
everyone riding in the vehicle is correctly
restrained with a separate seat belt. Never
use a seat belt for more than one person at
a time.
Warning!G
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position
as this can be dangerous. You could slide
under the seat belt in a collision. If you slide
under it, the belt would apply force at the abdomen or neck. This could cause serious or
even fatal injuries. The seat backrest and
seat belt provide the best restraint when the
wearer is in a nearly upright position and the
belt is properly positioned on the body.
Warning!G
Read and observe the additional warning notices printed in the “Safety and Security”
section (
컄 page 68).
The seat belt presenter for driver and passenger makes it easier to put on the seat
belt.
1 Seat belt presenter
Getting started
Driving
The seat belt presenter 1 slides out when
the corresponding door is closed and the
ignition is switched on (
1 Latch plate
2 Release button
3 Buckle
컄 page 38).
49
Page 51
Getting started
Driving
왘 With a smooth motion, pull the belt out
of the seat belt presenter.
왘 Place the shoulder portion of the belt
across the top of your shoulder and the
lap portion across your hips.
왘 Push latch plate 1 into buckle 3 until
it clicks.
왘 If necessary, tighten the lap portion to
a snug fit by pulling shoulder portion
up.
Proper use of seat belts
앫 Do not twist the belt when fastening.
앫 Adjust seat belt so that the shoulder
portion is located as close as possible
to the middle of the shoulder (it should
not touch the neck). Never pass the
shoulder portion of the belt under your
arm.
앫 Position the lap belt as low as possible
on your hips (over hip joint) and not
across the abdomen.
앫 Place the seat backrest in a position
that is as upright as possible.
앫 Never use a seat belt for more than one
person at a time.
앫 Do not fasten a seat belt around a
person and another object at the same
time.
앫 When using a seat belt to secure i nfant
restraints, toddler restraints or children in booster seats, always follow the
child seat manufacturer’s instructions.
앫 Check your seat belt periodically
during travel to make sure it is properly
positioned.
앫 Make sure the seat belt is always fitted
snugly. Take special care of this when
wearing loose clothing.
Warning!G
Do not pass belts over sharp edges. They
could tear.
Do not allow the belt to get caught in the
door or in the seat adjustment mechanism.
This could damage the belt.
Never attempt to make modifications to
seat belts. This could impair the effectiveness of the belts.
Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
Damaged seat belts or belts that were highly
stressed in an accident must be replaced.
Contact an authorized Mercedes-Benz
Center.
50
Page 52
Getting started
Driving
The seat belt presenter slides back:
앫 right after you push the latch plate 1
into buckle 3 and hear it click.
앫 after approximately 60 seconds if you
do not push latch plate 1 into
buckle 3.
앫 if your door is opened.
앫 if you turn the SmartKey in the starter
switch to position 0.
앫 if you release a front seat backrest and
fold it forward.
Warning!G
The seat belt presenter must be retracted
while the vehicle is in motion. Only when the
seat belt presenter is retracted can the seat
belt be properly positioned on the body and
protect the occupant as intended.
Starting the engineAutomatic transmission
Warning!G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while driving,
have the cause determined and corrected
immediately. If you must drive under these
conditions, drive with at least one window
fully open.
Gearshift pattern for automatic
transmission
P Park position with gear selector lever
lock
R Reverse gear
N Neutral
D Drive position
For more information, see “Automatic
transmission” (
컄 page 172).
51
Page 53
Getting started
Driving
Starting with the SmartKey
왘 Make sure the gear selector lever is set
to P.
왘 Do not depress accelerator.
왘 Turn the SmartKey in the starter switch
to position 3 (
컄 page 38) and release it
again immediately (“touch-start”).
The engine then starts automatically.
For information on turning off the engine
with the SmartKey, see (
컄 page 60).
Starting with KEYLESS-GO*
Warning!G
As long as the SmartKey with KEYLESS-GO
is in your vehicle, the vehicle can be started.
Therefore, never leave children unattended
in the vehicle, as they could otherwise accidentally start the engine.
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you and
lock the vehicle. Do not leave children unattended in the vehicle, or with access to an
unlocked vehicle.
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button on the
gear selector lever.
The SmartKey with KEYLESS-GO must be
located in the vehicle.
왘 Make sure the gear selector lever is set
to P.
왘 Do not depress accelerator.
왘 Depress the brake pedal during the
starting procedure.
The gear selector lever lock is released.
KEYLESS-GO start/stop button
1 USA only
2 Canada only
왘 Press KEYLESS-GO start/stop button
once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off the engine with KEYLESS-GO*” (
컄 page 60).
52
Page 54
Getting started
Driving
Starting difficulties
If the SmartKey is left in starter switch
position 0 for an extended period of time,
it can no longer be turned in the switch. In
this case, the steering is locked.
왘 To unlock, remove SmartKey from
starter switch and reinsert.
If the engine does not start as described,
carry out the following steps:
왘 If you are starting the engine with the
SmartKey, turn SmartKey in starter
switch to position 0 and repeat starting
procedure.
왘 If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detection of the SmartKey with
KEYLESS-GO*.
Or:
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
왘 Repeat the starting procedure
(
컄 page 51).
Remember that extended starting attempts can drain the battery.
왘 Get a jump start (컄 page 467).
If the engine does not start after several
starting attempts, there could be a malfunction in the engine electronics or in the
fuel supply system.
왘 Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
Parking brake
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Children could release the
parking brake, which could result in an acci-
dent and/or serious personal injury.
1 Release handle
2 Parking brake pedal
컄컄
53
Page 55
Getting started
Driving
왘 Release the parking brake by pulling on
컄컄
release handle 1.
The indicator lamp ; (USA only)
or 3 (Canada only) in the clock
goes out.
Driving
왘 Depress the brake pedal.
왘 Move gear selector lever to
position D or R.
Wait for the gear selection process to com-
i
plete before setting the vehicle in motion.
왘 Release the brake pedal.
왘 Carefully depress the accelerator
pedal.
If you hear a warning signal and the mes-
!
sage
Release Parking Brake
multifunction display when driving off, you have
forgotten to release the parking brake.
Release the parking brake (
At vehicle speeds of approximately 9 mph
i
(15 km/h), the automatic central locking system
engages and the locking knobs drop down.
The automatic door lock feature can be deactivated (
컄 page 166).
You can open a locked door from the inside.
Open door only when conditions are safe to do
so.
Simultaneously depressing the accelerator
!
pedal and applying the brakes reduces engine
performance and causes premature brake and
drivetrain wear.
appears in the
컄 page 53).
After a cold start, the automatic transmission shifts at a higher engine revolution.
This allows the catalytic converter to reach
its operating temperature earlier.
Warning!G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehicle control. Your vehicle’s ABS will not prevent this type of loss of control.
Place the gear selector lever in
!
position R or P only when the vehicle is stopped
in order to avoid damaging the transmission.
Do not run cold engine at high engine
!
speeds. Running a cold engine at high engine
speeds may shorten the service life of the engine.
CLK 63 AMG:
At low engine temperatures below +68°F
(+20°C), the engine’s maximum speed is
restricted in order to protect it from damage.
Avoid driving your vehicle at full speed when the
engine is cold to prevent premature engine wear
and/or diminished comfort.
54
Page 56
Getting started
Driving
Warning!G
It is dangerous to shift the gear selector
lever out of P or N if the engine speed is
higher than idle speed. If your foot is not
firmly on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
For more information on driving, see “Driving instructions” (
컄 page 309).
Switching on headlamps
Low beam headlamps
Exterior lamp switch
1 M Off
2 B Low beam headlamps or high
beam headlamps.
왘 Turn the exterior lamp switch to
position B.
The low beam headlamps and the low
beam headlamp indicator lamp B in
the instrument cluster comes on
(
컄 page 28).
High beam
Combination switch
1 High beam
2 High beam flasher
왘 Push the combination switch in
direction of arrow 1.
The high beam headlamps and the high
beam headlamp indicator lamp A in
the instrument cluster comes on
(
컄 page 28).
For more information on headlamps, see
“Lighting” (
컄 page 129).
55
Page 57
Getting started
Driving
Turn signals
Combination switch
1 Turn signals, right
2 Turn signals, left
왘 Press the combination switch in
direction of arrow 1 or 2.
The corresponding turn signal indicator
lamp L or K in the instrument
cluster flashes (
컄 page 28).
The combination switch resets
automatically after major steering wheel
movements.
To signal minor directional changes such as
i
changing lanes, press the combination switch
only to the point of resistance and release. The
corresponding turn signals will flash three times.
Windshield wipers
Combination switch
1 Single wipe
Wiping with windshield washer fluid
2 Switching on windshield wipers
왘 Switch on the ignition (컄 page 38).
Do not operate the windshield wipers when
!
the windshield is dry. Dust that accumulates on
a windshield might scratch the glass and/or
damage the wiper blades when wiping occurs on
a dry windshield. If it is necessary to operate the
windshield wipers in dry weather conditions, always operate the windshield wipers with windshield washer fluid (
컄 page 57).
Switching on windshield wipers
왘 Turn the combination switch to the de-
sired position depending on the
intensity of the rain.
0 Windshield wipers off
IIntermittent wiping
II Normal wiper speed
III Fast wiper speed
56
Page 58
Getting started
Driving
Intermittent wiping
Do not leave windshield wipers on an
!
intermittent setting when the vehicle is taken to
an automatic car wash or during windshield
cleaning. Windshield wipers will operate in the
presence of water sprayed on the windshield,
and windshield wipers may be damaged as a result.
If you have set intermittent wiping, dirt on
!
the surface of the rain sensor or optical effects
may cause the windshield wipers to wipe in an
undesired fashion. This could then damage the
windshield wiper blades or scratch the windows.
You should therefore switch off the windshield
wipers when weather conditions are dry.
Intermittent wiping interval is dependent
on wetness of windshield.
왘 Turn the combination switch to
position I.
After the initial wipe, pauses between
wipes are automatically controlled by the
rain sensor.
Intermittent wiping is interrupted when the
i
vehicle is at a standstill and a door is opened.
This protects persons getting into or out of the
vehicle from being sprayed.
Intermittent wiping will be continued when
앫 all doors are closed
and
앫 the gear selector lever is in position D or R
or
앫 the wiper setting is changed using the com-
bination switch.
Single wipe
왘 Press the combination switch briefly in
direction of arrow 1 (
컄 page 56) to
the resistance point.
The windshield wipers wipe one time
without washer fluid.
Wiping with windshield washer fluid
왘 Press the combination switch in direc-
tion of arrow 1 (
컄 page 56) past the
resistance point.
The windshield wipers operate with
washer fluid.
To prevent smears on the windshield, or
i
noisy/chattering wiper blades, wipe with windshield washer fluid every now and then even
when it is raining.
For information on filling up the washer
reservoir, see “Windshield washer system
and headlamp cleaning system*”
(
컄 page 330).
컄컄
57
Page 59
Getting started
Driving
컄컄
If anything blocks the windshield wipers
!
(leaves, snow, etc.), switch them off
immediately.
앫 For safety reasons, stop the vehicle in a safe
location and,
앫 remove SmartKey from starter switch
or
앫 turn off the engine by pressing the
KEYLESS-GO* start/stop button and
open the driver’s door (with the driver’s
door open, starter switch is in position 0,
same as with SmartKey removed from
starter switch)
before attempting to remove any blockage.
앫 Remove blockage.
앫 Turn the windshield wipers on again.
If the windshield wipers fail to function at all with
the combination switch in position I,
앫 set the combination switch to the next high-
er wiper speed
앫 have the windshield wipers checked at the
nearest authorized Mercedes-Benz Center.
Problems while driving
The engine runs erratically and misfires
앫 An ignition cable may be damaged.
앫 The engine electronics may not be op-
erating properly.
앫 Unburned gasoline may have entered
the catalytic converter and damaged it.
왘 Give very little gas.
왘 Have the problem repaired at an autho-
rized Mercedes-Benz Center as soon as
possible.
The coolant temperature is
above 248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
왘 Stop the vehicle in a safe location as
soon as possible and turn off the
engine. Allow engine and coolant to
cool off.
왘 Check the coolant level and add
coolant if necessary (
컄 page 328).
In case of accident
If the vehicle is leaking gasoline:
왘 Do not start the engine under any
circumstances.
왘 Notify local fire and/or police
authorities.
If the extent of the damage cannot be
determined:
왘 Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
If no damage can be determined on the
앫 major assemblies
앫 fuel system
앫 engine mount:
왘 Start the engine in the usual manner.
58
Page 60
왔 Parking and locking
You have now completed your first drive.
You have properly stopped and parked
your vehicle. End your drive as follows.
Warning!G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle.
Warning!G
Do not park this vehicle in areas where combustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury, or
damage to the vehicle or the vehicle
drivetrain, as a result of vehicle movement,
always do the following before turning off
the engine and leaving the vehicle:
앫 Keep right foot firmly on brake pedal.
앫 Firmly depress parking brake pedal.
앫 Move the gear selector lever to
position P.
앫 Slowly release brake pedal.
앫 When parked on an incline, always turn
the front wheels towards the road curb.
앫 Turn the SmartKey or the SmartKey with
KEYLESS-GO* to starter switch
position 0 and remove, or press
KEYLESS-GO* start/stop button.
앫 Take the SmartKey or the SmartKey with
KEYLESS-GO* with you and lock the
vehicle when leaving.
Getting started
Parking and locking
Parking brake
Warning!G
Engaging the parking brake while the vehicle
is in motion can cause the rear wheels to
lock up. You could lose control of the vehicle
and cause an accident. In addition, the
vehicle’s brake lights do not light up when
the parking brake is engaged.
1 Release handle
2 Parking brake pedal
왘 Step firmly on parking brake pedal 2.
59
컄컄
Page 61
Getting started
Parking and locking
When the engine is running, the
컄컄
warning lamp ; (USA only)
or 3 (Canada only) in the clock will
be illuminated.
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unattended in the vehicle, or with access to an
unlocked vehicle. Children could release the
parking brake and/or move the gear selector lever from position P, either of which
could result in an accident and/or serious
personal injury.
Position P alone may not prevent your vehicle from moving, possibly hitting people or
objects. Always set the parking brake in addition to shifting to position P (
When parked on an incline, always turn the
front wheels towards the road curb.
컄 page 174).
Getting out of your vehicle without taking
the above measurements to secure it is
dangerous.
Switching off headlamps
왘 Turn the exterior lamp switch to M
(
컄 page 129).
Turning off the engine
왘 Place the gear selector lever in
position P.
왘 Apply the parking brake (컄 page 59).
Always set the parking brake in addition to
i
shifting to position P.
On slopes, turn the front wheels towards the
curb.
Turning off the engine with the
SmartKey
왘 Turn the SmartKey in the starter switch
to position 0 (
왘 Remove the SmartKey from the starter
컄 page 38).
switch.
The immobilizer is activated.
The SmartKey can only be removed from the
i
starter switch with the gear selector lever in
position P.
Turning off the engine with
KEYLESS-GO*
왘 Press the KEYLESS-GO start/stop but-
ton to shut off the engine.
With the driver’s door closed, the starter switch is now in position 1. With the
driver’s door opened, the starter switch
is set to position 0, same as SmartKey
removed from starter switch
(
컄 page 38).
60
Page 62
Getting started
Parking and locking
If you hear a warning signal, you have tried
i
to turn off the engine while the gear selector lever was not in P.
In addition, the message
Park
appears in the multifunction display.
Place the gear selector lever in P.
Selector Lever In
Releasing seat belts
왘 Press the seat belt release button
(
컄 page 49).
Allow the retractor to completely rewind the seat belt by guiding the latch
plate.
Make sure the seat belt retracts fully so that
!
the seat belt and/or latch plate cannot get
caught or pinched in the door or in the seat
mechanism. This can damage the seat belt and
impair the effectiveness of the seat belt, and/or
cause damage to the door and/or door trim panel. Such damage is not covered by the
Mercedes-Benz Limit Warranty.
Damaged seat belts must be replaced. Contact
an authorized Mercedes-Benz Center.
Locking왘 Exit the vehicle, take the SmartKey or
the SmartKey with KEYLESS-GO* with
you, and close all doors and the trunk
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors. Be especially careful when small children are
around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.
Warning!G
When leaving the v ehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unattended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised access to a vehicle could result in an accident
and/or serious personal injury.
lid.
If you hear a warning signal you have
i
forgotten to switch off the low beam headlamps
or the parking lamps before opening the driver’s
door.
In addition the message
appears in the multifunction display.
Switch off the low beam headlamps or the parking lamps.
If the message
move Key
remove the SmartKey from the starter switch or
switch off the automatic headlamp mode.
Failure to switch off the exterior lamps when
!
leaving the vehicle may result in a discharged
battery.
Opening a door causes the windows on that
i
side of the car to open slightly. They will return to
the up position when the door is closed.
Switch Off Lights or Re-
appears in the multifunction display
Switch Off Lights
61
Page 63
Getting started
Parking and locking
Locking with the SmartKey
왘 Press lock button ‹ on the
SmartKey (
컄 page 36).
With the trunk and both doors closed:
앫 All turn signal lamps flash three
times.
앫 An acoustic signal sounds three
times.
For more information, see “Factory
setting” (
앫 The locking knobs in the doors
컄 page 106).
move down.
앫 The anti-theft alarm system is
armed.
For more information, see “SmartKey”
(
컄 page 100).
Locking with KEYLESS-GO*
1 Lock button
왘 Press lock button 1 on an outside
door handle.
With the trunk and both doors closed:
앫 All turn signal lamps flash three
times.
앫 An acoustic signal sounds three
times.
For more information, see “Factory
setting” (
앫 The locking knobs in the doors
컄 page 106).
move down.
앫 The anti-theft alarm system is
armed.
For more information, see “SmartKey with
KEYLESS-GO*” (
컄 page 103).
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Page 64
Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems
63
Page 65
Safety and Security
Occupant safety
In this section you will learn the most important facts about the restraint system
components of the vehicle.
앫 Seat belts (컄 page 77)
앫 Child restraints (컄 page 86)
앫 Lower Anchors and Tethers for
CHildren (LATCH) (
컄 page 87)
Additional protection potential is provided
by:
앫 Supplemental Restraint System (SRS)
with
앫 Air bags (컄 page 65)
앫 Air bag control unit (with crash
sensors)
앫 Emergency tensioning device (ETD)
for seat belts (
앫 Active head restraints (컄 page 81)
앫 CLK cabriolet: Roll bars (컄 page 82)
컄 page 80)
Air bag system components with
앫 Front passenger front air bag off
indicator lamp (
앫 Front passenger seat with Occupant
컄 page 76)
Classification System (OCS)
(
컄 page 72)
Although the systems are independent,
their protective functions work in conjunction with each other.
For information on infants and children
i
traveling with you in the vehicle and restraint
systems for infants and children, see “Children
in the vehicle” (
컄 page 83).
The SRS system conducts a self-test when
the ignition is switched on and in regular
intervals while the engine is running. This
facilitates detection of system malfunctions. The 1 indicator lamp in the instrument cluster comes on when the
ignition is switched on and goes out no later than a few seconds after the engine has
been started.
The SRS components are in operational
readiness if the 1 indicator lamp is not
lit when the engine is running.
A malfunction in the system has been
detected if the 1 indicator lamp:
앫 fails to go out after approximately
4 seconds after the engine was started
앫 does not come on at all
앫 comes on after the engine was started
or while driving
64
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Safety and Security
Occupant safety
Warning!G
Modifications to or work improperly conducted on restraint systems (such as seat
belts and anchors, emergency tensioning
devices, seat belt force limiters or air bags)
or their wiring, as well as tampering with interconnected electronic systems, can lead
to the restraint systems no longer functioning as intended.
Air bags or emergency tensioning devices,
for example, could deploy inadvertently or
fail to deploy in accidents although the deceleration threshold for air bag deployment
is exceeded. Therefore, never modify the restraint systems. Do not tamper with electronic components or their software.
Warning!G
In the event that the 1 indicator lamp
comes on during driving or does not come
on at all, the SRS self-check has detected a
malfunction. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the SRS may
not deploy when needed in an accident,
which could result in serious or fatal injury,
or it might deploy unexpectedly and unnecessarily which could also result in injury.
In addition, improper repair work on the SRS
creates a risk of rendering the SRS inoperative or causing unintended air bag deployment. Work on the SRS must therefore only
be performed by qualified technicians. Contact an authorized Mercedes-Benz Center.
If it is necessary to modify an air bag system
to accommodate a person with disabilities,
contact your local authorized
Mercedes-Benz Center or call our Customer
Assistance Center at 1-800-FOR-MERCedes
(1-800-367-6372) for details.
Air bags
Warning!G
Air bags are designed to reduce the poten-
tial of injury and fatality in certain frontal im-
pacts (front air bags) or side impacts (CLK
coupe: front side impact air bags, rear side
impact air bags*, and window curtain air
bags. CLK cabriolet: head-thorax air bags
and rear side impact air bags*). However, no
system available today can completely elim-
inate injuries and fatalities.
The deployment of the air bags temporarily
releases a small amount of dust from the air
bags. This dust, however, is neither injurious
to your health, nor does it indicate a fire in
the vehicle. The dust might cause some tem-
porary breathing difficulty for people with
asthma or other breathing trouble. To avoid
this, you may wish to get out of the vehicle
as soon as it is safe to do so. If you have any
breathing difficulty but cannot get out of the
vehicle after the air bag inflates, then get
fresh air by opening a window or door.
65
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Safety and Security
Occupant safety
Warning!G
To reduce the risk of injury when the front
air bags inflate, it is very important for the
driver and front passenger to always be in a
properly seated position and to wear their
respective seat belts.
For maximum protection in the event of a
collision always be in normal seated position
with your back against the backrest. Fasten
your seat belt and make sure it is properly
positioned on your body.
Since the air bag inflates with considerable
speed and force, a proper seating and hands
on steering wheel position will help to keep
you at a safe distance from the air bag.
Occupants who are unbelted, out of position
or too close to the air bag can be seriously
injured or killed by an air bag as it inflates
with great force in the blink of an eye:
앫 Sit properly belted in a position that is
as upright as possible with your back
against the seat backrest.
앫 Adjust the driver’s seat as far as possi-
ble rearward, still permitting proper operation of vehicle controls. The distance
from the center of the driver’s breastbone to the center of the air bag cover
on the steering wheel must be at least
10 in (25 cm) or more. You should be
able to accomplish this by a combination of adjustments to the seat and
steering wheel. If you have any problems, please see an authorized
Mercedes-Benz Center.
앫 Do not lean your head or chest close to
the steering wheel or dashboard.
앫 Keep hands on the outside of steering
wheel rim. Placing hands and arms inside the rim can increase the risk and
potential severity of hand/arm injury
when driver’s front air bag inflates.
앫 Adjust the front passenger seat as far as
possible rearward from the dashboard
when the seat is occupied.
앫 Occupants, especially children, should
always sit as upright as possible,
properly use the seat belts and use an
appropriately sized infant restraint,
toddler restraint, or booster seat recommended for the size and weight of the
child.
Failure to follow these instructions can result in severe injuries to you or other
occupants.
If you sell your vehicle, it is important that
you make the buyer aware of this safety
information. Be sure to give the buyer this
Operator’s Manual.
66
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Safety and Security
Occupant safety
Warning!G
CLK coupe:
Accident research shows that the safest
place for children in an automobile is in the
rear seat.
There is a possibility for a side impact air
bag related injury if occupants, especially
children, are not properly seated or restrained when next to a front side impact air
bag and/or rear side impact air bag* which
needs to deploy rapidly in a side impact in
order to do its job.
To help avoid the possibility of injury, please
follow these guidelines:
(1) Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door or the rear
side trim panel where the front side impact air bag and/or the rear side impact
air bag* inflates.
This could result in serious injuries or
death should the front side impact air
bag and/or the rear side impact air bag*
be deployed.
(2) Always sit as upright as possible,
properly use the seat belts and for
children 12 years old and under, use an
appropriately sized infant restraint,
toddler restraint, or booster seat recommended for the size and weight of the
child.
(3) Always wear seat belts properly.
If you believe that, even with the use of
these guidelines, it would be safer for your
rear seat occupants to have the rear mounted side impact air bags* deactivated, then
deactivation can be accomplished upon
your written request to do so at an authorized Mercedes-Benz Center at an additional
cost.
Please contact your local authorized
Mercedes-Benz Center or call our Customer
Assistance Center at 1-800-FOR-MERCedes
(1-800-367-6372) for details.
Warning!G
CLK cabriolet:
Accident research shows that the safest
place for children in an automobile is in the
rear seat.
There is a possibility for a head-thorax air
bag or rear side impact air bag* related inju-
ry if occupants, especially children, are not
prop er ly seat ed or rest rain ed wh en n ext to a
head-thorax air bag and/or rear side impact
air bag* which needs to deploy rapidly in a
side impact in order to do its job.
To help avoid the possibility of injury, please
follow these guidelines:
(1) Always sit as upright as possible,
properly use the seat belts and for
children 12 years old and under, use an
appropriately sized infant restraint,
toddler restraint or booster seat recommended for the size and weight of the
child.
(2) Always wear seat belts properly.
67
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Safety and Security
Occupant safety
Air bags are designed to deploy only in cer-
i
tain frontal impacts (front air bags) and in side
impacts (CLK coupe: front side impact air bags,
rear side impact air bags*, and window curtain
air bags. CLK cabriolet: head-thorax air bags and
rear side impact air bags*) which exceed preset
thresholds. Only during these events will they
provide their supplemental protection.
The driver and passenger should always wear
their seat belts. Otherwise it is not possible for
the air bags to provide their supplemental
protection.
In case of other types of impacts and impacts below air bag deployment thresholds, air bags will
not deploy. The driver and passenger will then be
protected to the extent possible by a properly
fastened seat belt. A properly fastened seat belt
is also needed to provide the best possible
protection in a rollover.
We caution you not to rely on the presence of the
air bags in order to avoid wearing your seat belt.
It is important to your safety and that of your passengers that you replace deployed air bags and
repair any malfunctioning air bags to make sure
the vehicle will continue to provide supplemental
crash protection for occupants.
Safety guidelines for the seat belt,
emergency tensioning device and
air bag
Warning!G
앫 Damaged seat belts or belts that were
highly stressed in an accident must be
replaced and their anchoring points
must also be checked. Only use belts installed or supplied at an authorized
Mercedes-Benz Center.
앫 Air bags and Emergency Tensioning
Devices (ETDs) contain Perchlorate
material, which may require special handling and regard for the environment.
Check with your local government’s disposal guidelines. California residents,
see http://www.dtsc.ca.gov/HazardousWaste/Perchlorate/index.cfm.
앫 Air bags and emergency tensioning de-
vices (ETDs) are designed to function on
a one-time-only basis. An air bag or ETD
that is deployed must be replaced.
앫 Do not pass belts over sharp edges.
They could tear.
앫 Do not make any modification that could
change the effectiveness of the belts.
앫 Do not bleach or dye seat belts as this
may severely weaken them. In a crash
they may not be able to provide adequate protection.
앫 No modifications of any kind may be
made to any components or wiring of
the SRS. This includes changing or
removing any component or part of the
SRS, the installation of additional trim
material, badges, seat covers
(CLK cabriolet) etc. over the steering
wheel hub, front passenger front air bag
cover, outboard sides of the front seat
backrest (CLK cabriolet), door trim panels (CLK coupe), door frame trims (CLK
coupe), or rear side trim panels, and installation of additional electrical/electronic equipment on or near SRS
components and wiring. Keep area between air bags and occupants free from
objects (e.g. packages, purses, umbrellas, etc.).
68
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Safety and Security
Occupant safety
앫 CLK coupe: Do not hang items such as
coat hangers from the coat hooks or
handles over the door. These items may
turn into projectiles and cause head and
other injuries when the window curtain
air bag is deployed.
앫 Air bag system components will be hot
after an air bag has inflated. Do not
touch.
앫 Never place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
앫 In addition, improper repair work on the
SRS creates a risk of rendering the SRS
inoperative or causing unintended air
bag deployment. Work on the SRS must
therefore only be performed by qualified
technicians. Contact an authorized
Mercedes-Benz Center.
앫 For your protection and the protection
of others, when scrapping the air bag
unit or emergency tensioning device,
our safety instructions must be followed. These instructions are available
from any authorized Mercedes-Benz
Center.
앫 Given the considerable deployment
speed, required inflation volume, and
the textile structure of the air bags,
there is the possibility of abrasions or
other, potentially more serious injuries
resulting from air bag deployment.
Warning!G
CLK cabriolet: Only use seat covers which
have been tested and approved by
Mercedes-Benz for your vehicle model. Us-
ing other seat covers may interfere with or
prevent the deployment of the head-thorax
air bags. Contact your authorized
Mercedes-Benz Center for availability.
When you sell your vehicle, we strongly
urge you to give notice to the subsequent
owner that it is equipped with an SRS by
alerting them to the applicable section in
the Operator’s Manual.
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Safety and Security
Occupant safety
Front air bags
1 Driver air bag
2 Passenger air bag
Driver and front passenger front air bags
are deployed:
앫 in the event of certain frontal impacts
앫 if impact exceeds a preset deployment
threshold
앫 independently of the front side impact
air bag (CLK coupe), head-thorax air
bag (CLK cabriolet) and/or the rear
side impact air bag*
The front air bags in this vehicle have been
i
designed to inflate in two stages. This allows the
air bag to have different rates of inflation that are
based on the rate of relevant vehicle deceleration as assessed by the air bag control unit.
On the front passenger side, the front air bag deployment is additionally influenced by the passenger’s weight category as identified by the
Occupant Classification System (OCS)
(
컄 page 72).
The lighter the front passenger side occupant,
the higher the vehicle deceleration rate required
for the second stage inflation of the air bag.
The air bags will not deploy in impacts
which do not exceed the system’s deployment thresholds. You will then be protected by the fastened seat belts.
The front passenger front air bag will only
be deployed if:
앫 the system, based on OCS weight sen-
sor readings, senses that the front passenger seat is occupied
앫 the 56 indicator lamp in the
center console is not lit (
앫 the impact exceeds a preset deploy-
컄 page 76)
ment threshold
CLK coupe:
Front side impact air bags, rear side
impact air bags*, window curtain air
bags
1 Front side impact air bag
2 Rear side impact air bag*
3 Window curtain air bag
70
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Safety and Security
Occupant safety
The front side impact air bags, the rear
side impact air bags*, and the window
curtain air bags are deployed:
앫 on the impacted side of the vehicle
앫 in side impacts exceeding a preset de-
ployment threshold
앫 independently of the front air bags
The front side impact air bags, the rear
side impact air bags*, and the window curtain air bags are not deployed in impacts
which do not exceed the system’s deployment threshold.
CLK cabriolet: Head-thorax air bags
1 Head-thorax air bag
The head-thorax air bags 1 in the drivers
and front passenger seat are deployed:
앫 on the impacted side of the vehicle
앫 in side impacts exceeding a preset de-
ployment threshold
앫 independently of the front air bags
The head-thorax air bags 1 are not deployed in impacts which do not exceed the
system’s deployment threshold.
Warning!G
Only use seat covers which have been
tested and approved by Mercedes-Benz for
your vehicle model. Using other seat covers
may interfere with or prevent the
deployment of the head-thorax air bags.
Contact your authorized Mercedes-Benz
Center for availability.
71
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Safety and Security
Occupant safety
CLK cabriolet: Rear side impact air
bags*
1 Rear side impact air bag*
The rear side impact air bags* 1 are
deployed:
앫 on the impacted side of the vehicle
앫 in side impacts exceeding a preset de-
ployment threshold
앫 independently of the front air bags
The rear side impact air bags* 1 are not
deployed in impacts which do not exceed
the system’s deployment threshold.
Occupant Classification System
The O
ccupant Classification System (OCS)
automatically turns the front passenger
front air bag on or off based on the classified occupant weight category determined
by weight sensor readings from the front
passenger seat.
CLK coupe: The system does not deactivate
i
the front passenger side impact air bag, the window curtain air bag and the emergency tensioning device.
CLK cabriolet: The system does not deactivate
the head-thorax air bag and the emergency tensioning device.
Occupants must sit properly belted in a
position that is as upright as possible with
their back against the seat backrest and
feet on the floor to be correctly classified.
If the occupant's weight is transferred to
another object in the vehicle (e.g. by
leaning on armrests), the OCS may not be
able to properly approximate the
occupant’s weight category.
If your seat, including your trim cover and
i
cushion needs to be serviced in any way, take
the vehicle to an authorized Mercedes-Benz
Center.
Only seat accessories approved by
Mercedes-Benz may be used.
Both driver and the front passenger should
always use the 56 indicator lamp
as an indication of whether or not the front
passenger is properly positioned.
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Safety and Security
Occupant safety
Warning!G
If the 56 indicator lamp illuminates
when an adult or someone larger than a
small individual is in the front passenger
seat, have the front passenger re-position
himself or herself in the seat until the
56 indicator lamp goes out.
More information about air bag display
messages (
In the event of a collision, the air bag control
unit will not allow front passenger front air
bag deployment when the OCS classified
the front passenger seat occupant as being
up to or less than the weight of a typical
12-month-old child in a standard child
restraint or if the front passenger seat is
sensed as being empty.
컄 page 396).
When the OCS senses that the front passenger seat occupant is classified as being up
to or less than the weight of a typical
12-month-old child in a standard child
restraint, the 56 indicator lamp will
illuminate when the engine is started and
remain illuminated, indicating that the front
passenger front air bag is deactivated.
When the OCS senses that the front passenger seat is classified as being empty, the
56 indicator lamp will illuminate
when the engine is started and remain
illuminated, indicating that the front
passenger front air bag is deactivated.
When the OCS senses that the front passenger seat occupant is classified as being
heavier than the weight of a typical
12-month-old child seated in a standard
child restraint or as being a small individual
(such as a young teenager or a small adult),
the 56 indicator lamp will illuminate
for approximately 6 seconds when the
engine is started and then, depending on
occupant weight sensor readings from the
seat, remain illuminated or go out. With the
56 indicator lamp illuminated, the
front passenger front air bag is deactivated.
With the 56 indicator lamp out, the
front passenger front air bag is activated.
When the OCS senses that the front passenger seat occupant is classified as an adult or
someone larger than a small individual, the
56 indicator lamp will illuminate for
approximately 6 seconds when the engine is
started and then go out, indicating that the
front passenger front air bag is activated.
If the 56 indicator lamp is
illuminated, the front passenger front air
bag is deactivated and will not be deployed.
컄컄
73
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Safety and Security
Occupant safety
컄컄
If the 56 indicator lamp is not
illuminated, the front passenger front air
bag is activated and will be deployed:
앫 in the event of certain frontal impacts
앫 if impact exceeds a preset deployment
threshold
앫 independently of the front side impact
air bags (CLK coupe), head-thorax air
bag (CLK cabriolet) and/or rear side impact air bags*.
If the front passenger front air bag is
deployed, the rate of inflation will be
influenced by:
앫 the rate of vehicle deceleration as as-
sessed by the air bag control unit
앫 front passenger’s weight category as
identified by the Occupant Classification
System (OCS).
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seating position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriate infant or child restraint recommended for the size and weight of the child.
The infant or child restraint must be properly
secured with the vehicle’s seat belt, the seat
belt and top tether strap (CLK coupe), or
lower anchors and top tether strap (CLK
coupe), or seat belt and lower anchors (CLK
cabriolet), fully in accordance with the child
seat manufacturer’s instructions.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front
passenger seat:
앫 Your vehicle is equipped with air bag
technology designed to turn off the front
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropriate child restraint on the front passenger seat.
앫 A child in a rear-facing child restraint on
the front passenger seat will be
seriously injured or even killed if the
front passenger front air bag inflates in
a collision which could occur under
some circumstances, even with the air
bag technology installed in your vehicle.
The only means to completely eliminate
this risk is to never place a child in a
rear-facing child restraint in the front
seat. We therefore strongly recommend
that you always place a child in a
rear-facing child restraint in the back
seat.
74
Page 76
앫 If you must install a rear-facing child
restraint on the front passenger seat
because circumstances require you to
do so, make sure the 56 indicator lamp is illuminated, indicating that
the front passenger front air bag is deactivated. Should the 56 indicator
lamp not illuminate or go out while the
restraint is installed, please check installation. Periodically check the
56 indicator lamp while driving
to make sure the 56 indicator
lamp is illuminated.
If the 56 indicator lamp goes out
or remains out, do not transport a child
on the front passenger seat until the
system has been repaired. A child in a
rear-facing child restraint on the front
passenger seat will be seriously injured
or even killed if the front passenger front
air bag inflates.
앫 If you have to place a child in a
forward-facing child restraint on the
front passenger seat, move the seat as
far back as possible, use the proper
child restraint recommended for the
age, size and weight of the child, and
secure child restraint with the vehicle’s
seat belt according to the child seat
manufacturer’s instructions. For
children larger than the typical
12-month-old child, the front passenger
front air bag may or may not be
activated (
컄 page 73).
Safety and Security
Occupant safety
Deployment of the driver front air bag does
i
not mean that the front passenger front air bag
also should have deployed.
The Occupant Classification System (
may have determined:
앫 that the seat was empty or occupied by the
weight up to or less than that of a typical
12-month-old child seated in a standard
child restraint – both instances where the
system suppresses deployment of the front
passenger front air bag even though the impact met the criteria and was of sufficient
severity to deploy the driver front air bag.
앫 that the seat was occupied by a small individ-
ual (such as a young teenager or a small
adult) or a child weighing more than the
weight of a typical 12-month-old child in a
standard child restraint – instances where
the system may suppress deployment of the
front passenger front air bag even though
the impact met the criteria and was of sufficient severity to deploy the driver front air
bag.
컄 page 72)
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Safety and Security
Occupant safety
The 56 indicator lamp is located in
the center console.
1 Front passenger front air bag off
indicator lamp
The 56 indicator lamp 1 will be
illuminated, except with the SmartKey
removed from the starter switch or with
the starter switch in position 0.
Warning!G
If the 1 indicator lamp and the
56 indicator lamp are lit at the same
time, there is a malfunction in the Occupant
Classification System. The front passenger
front air bag will be deactivated in this case.
Have the system checked as soon as possible by qualified technicians. Contact an authorized Mercedes-Benz Center.
Only have the seat repaired or replaced at
an authorized Mercedes-Benz Center.
In order to ensure proper operation of the
air bag system and OCS:
앫 Sit properly belted in a position that is
as upright as possible with your back
against the seat backrest.
앫 While seated, an occupant should not
position him/herself in such a way as to
cause the occupant’s weight to be lifted
from the seat bottom as this may result
in the OCS being unable to correctly approximate the occupant’s weight
category.
앫 Read and observe all warnings in this
chapter.
Self-test Occupant Classification
System
After turning the SmartKey in the starter
switch to position 1 or 2 or pressing the
KEYLESS-GO* start/stop button once or
twice, the 56 indicator lamp
located in the center console illuminates. If
an adult occupant is properly sitting on the
front passenger seat and the system
senses the occupant as being an adult,
the 56 indicator lamp will
illuminate and go out after
approximately 6 seconds.
If the seat is not occupied and the system
senses the front passenger seat as being
empty, the 56 indicator lamp will
illuminate and not go out.
76
Page 78
Warning!G
If the 56 indicator lamp should not
illuminate, the system is not functioning.
You must see an authorized Mercedes-Benz
Center before seating any child on the front
passenger seat.
More information can be found in the
“Practical hints” section (
컄 page 390).
Warning!G
Never place anything between seat cushion
and child seat (e.g. pillow), since it reduces
the effectiveness of the Occupant Classification System. The bottom of the child seat
must make full contact with the passenger
seat cushion. An incorrectly mounted child
seat could cause injuries to the child in case
of an accident, instead of increasing protection for the child.
Follow the manufacturer’s instructions for
installation of child seats.
Seat belts
The use of seat belts and infant and child
restraint systems is required by law in all
50 states, the District of Columbia, the
U.S. territories and all Canadian provinces.
Even where this is not the case, all vehicle
occupants should have their seat belts
fastened whenever the vehicle is in
motion.
For more information, see “Fastening the
seat belts” (
For information on infants and children trav-
i
eling with you in the vehicle and restraint systems for infants and children, see “Children in
the vehicle” (
컄 page 48).
컄 page 83).
Safety and Security
Occupant safety
Warning!G
Always fasten your seat belt before driving
off. Always make sure all of your passengers
are properly restrained, including those sitting in the rear.
Failure to wear and properly fasten and
position your seat belt greatly increases
your risk of injuries and their likely severity
in an accident. You and your passengers
should always wear seat belts.
If you are ever in an accident, your injuries
can be considerably more severe without
your seat belt properly buckled. Without
your seat belt buckled, you are much more
likely to hit the interior of the vehicle or be
ejected from it. You can be seriously injured
or killed.
In the same crash, the possibility of injury or
death is lessened if you are properly wearing
your seat belt. Air bags can only protect as
they are designed if the occupants are
properly wearing their seat belts.
77
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Safety and Security
Occupant safety
Warning!G
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position
as this can be dangerous. You could slide
under the seat belt in a collision. If you slide
under it, the belt would apply force at the
abdomen or neck. That could cause serious
or even fatal injuries. The seat backrest and
seat belt provide the best restraint when the
wearer is in a position that is as upright as
possible and the belt is properly positioned
on the body.
Warning!G
Never let more people ride in the vehicle
than there are seat belts available. Make
sure everyone riding in the vehicle is
correctly restrained with a separate seat
belt. Never use a seat belt for more than one
person at a time.
Warning!G
Damaged seat belts or seat belts that were
highly stressed in an accident must be replaced and their anchoring points must also
be checked.
Only use seat belts which have been
approved by Mercedes-Benz.
Do not make any modifications to the seat
belts. This can lead to unintended activation
of the ETDs or to their failure to activate
when necessary.
Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
Have all work carried out only by qualified
technicians. Contact an authorized
Mercedes-Benz Center.
Warning!G
USE SEAT BELTS PROPERLY
앫 Seat belts can only work when used
properly. Never wear seat belts in any
other way than as described in this
section, as that could result in serious
injuries in case of an accident.
앫 Each occupant should wear their seat
belt at all times, because seat belts help
reduce the likelihood of and potential
severity of injuries in accidents, including rollovers. The integrated restraint
system includes SRS (driver air bag,
passenger front air bag, CLK coupe:
front side impact air bags, rear side impact air bags*, and window curtain air
bags, CLK cabriolet: head-thorax air
bags and rear side impact air bags*),
ETD (seat belt emergency tensioning device), and front seat knee bolsters. The
system is designed to enhance the protection offered to properly belted occupants in certain frontal (front air bags
and ETD)
78
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Safety and Security
Occupant safety
and side (CLK coupe: front side impact
air bags, rear side impact air bags*, and
window curtain air bags. CLK cabriolet:
head-thorax air bags and rear side impact air bags* and ETD) impacts which
exceed preset deployment thresholds.
앫 Never wear the shoulder belt under your
arm, against your neck or off your shoulder. In a frontal crash, your body would
move too far forward. That would
increase the chance of head and neck
injuries. The belt would also apply too
much force to the ribs or abdomen,
which could severely injure internal organs such as your liver or spleen.
앫 Never wear belts over rigid or breakable
objects in or on your clothing, such as
eyeglasses, pens, keys, etc., as these
might cause injuries.
앫 Position the lap belt as low as possible
on your hips and not across the abdomen. If the be lt is positioned across your
abdomen, it could cause serious injuries
in a crash.
앫 Never use a seat belt for more than one
person at a time. Do not fasten a seat
belt around a person and another
person or other objects.
앫 Belts should not be worn twisted. In a
crash, you wouldn’t have the full width
of the belt to distribute impact forces.
The twisted belt against your body could
cause injuries.
앫 Pregnant women should also always use
a lap-shoulder belt. The lap belt portion
should be positioned as low as possible
on the hips to avoid any possible
pressure on the abdomen.
앫 Never place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
앫 When using a seat belt to secure infant
restraints, toddler restraints or children
in booster seats, always follow the child
seat manufacturer’s instructions.
Enhanced seat belt reminder system
When the engine is started, the seat belt
telltale < will always illuminate
for 6 seconds to remind you and your passengers to fasten your seat belts.
If the driver’s seat belt is not fastened
when the engine is started, an additional
warning chime will also sound for a maximum of 6 seconds or until the driver’ s
seat belt is fastened.
If after these 6 seconds the driver’s or the
front passenger’s seat belt (with the front
passenger seat occupied) is not fastened
with both doors closed,
앫 the seat belt telltale < remains illu-
minated for as long as either the driver’s or front passenger’s seat belt is not
fastened.
앫 and if the vehicle speed once exceeds
15 mph (25 km/h), the seat belt
telltale < starts flashing and a
warning chime sounds with increasing
79
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Safety and Security
Occupant safety
intensity for a maximum of 60 seconds
or until the driver’s and the front passenger’s seat belt are fastened.
If you and/or your passenger release
the seat belt during driving, the seat
belt telltale < starts flashing and a
warning chime sounds as described before.
If the driver’s or the front passenger’s
seat belt remains unfastened after
60 seconds, the warning chime stops
sounding, the seat belt telltale <
stops flashing but continues to be illuminated.
After a vehicle standstill, the warning
chime is reactivated and the seat belt
telltale < is flashing again if the vehicle speed once exceeds 15 mph
(25 km/h).
The seat belt telltale < will only go out
if both the driver’s and the front passenger’s seat belt (with the front passenger
seat occupied) are fastened, or the vehicle
is standing still and a door is opened.
For more information, see “Practical hints”
(
컄 page 385).
Emergency tensioning device (ETD),
seat belt force limiter
The seat belts are equipped with emergency tensioning devices and belt force
limiters.
The ETD is designed to activate in the
following cases:
앫 in frontal or rear-end impacts
exceeding the system deployment
threshold
앫 if the restraint systems are operational
and functioning correctly,
see 1 indicator lamp (
The ETDs for the front seats will only acti-
i
vate if the front seat belts are fastened (latch
plate properly inserted into buckle).
The ETDs for the rear seats will activate with or
without the respective seat belts fastened.
컄 page 64)
When activated, emergency tensioning
devices remove slack from the belts. Belt
force limiters reduce the force exerted by
the seat belts on occupants during a crash.
Warning!G
An emergency tensioning device (ETD) that
was activated must be replaced.
When disposing of the emergency tensioning device, our safety instructions must be
followed. These are available at any
authorized Mercedes-Benz Center.
Automatic comfort-fit feature seat belt
An automatic comfort-fit feature for front
seats reduces the retracting force of the
seat belts when they are in normal use.
80
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Safety and Security
Occupant safety
Active head restraints
The active front seat head restraints are intended to offer the driver and front passenger increased protection from whiplash
type injuries in rear-end collisions. In the
event of a rear-end collision exceeding the
systems’ deployment threshold, the active
head restraints on the driver’s and front
passenger’s seats are designed to move
forward in the direction of travel, providing
the head with increased support earlier on
in the collision sequence. The active head
restraints activate whether the seat is occupied or not.
Warning!G
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as
close to the head as possible and the center
of the head restraint supports the back of
the head at eye level. This will reduce the
potential for injury to the head and neck in
the event of an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intended to help reduce injuries during an
accident.
Warning!G
Only use seat or head restraint covers which
have been tested and approved by
Mercedes-Benz for your vehicle model.
Using other seat or head restraint covers
may interfere with or prevent the activation
of the active head restraints. Contact an
authorized Mercedes-Benz Center for
availability.
Do not attach any objects (e.g. hangers) to
the head restraint posts. Otherwise, the active head restraints may not be able to function properly or offer the intended degree of
protection in the event of an accident.
You cannot remove the active head restraint on the driver’s and front passenger’s seat.
For removal of the active head restraints
we recommend that you contact an
authorized Mercedes-Benz Center.
For information on head restraint adjustment, see “Seats” (
컄 page 41).
For information on resetting the activated
active head restraints, see “Resetting activated head restraints” (
컄 page 440).
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Safety and Security
Occupant safety
Roll bars (CLK cabriolet)
Warning!G
Make sure nothing is blocking the roll bars’
path of motion. Otherwise someone could
be injured when the roll bars are raised. The
head restraints should therefore always be
in the raised position when the rear seat is
occupied (
컄 page 123).
The roll bars are integrated into the rear
head restraints.
The roll bars raise automatically in an accident or in a critical driving situation.
When the roll bars are raised automatically,
i
you will hear a ratcheting sound and the rear
head restraints will also rise.
You can manually lower the roll bars again
when the soft top is open (
컄 page 431).
With the soft top closed, contact an authorized Mercedes-Benz Center to have the
roll bars lowered. Do not attempt to lower
the roll bars manually with the soft top
closed. Lowering the roll bars manually
with the soft top closed may impair the
function of the roll bars.
You cannot lower the rear head restraints
i
with the rear head restraint lowering switch
(
컄 page 123) when the roll bars are in the raised
position.
Also, you cannot operate the soft top using the
soft top switch when the roll bars are in the
raised position.
앫 If the soft top is open, you can manually low-
er the roll bars (
컄 page 431).
앫 If the soft top is closed, contact an autho-
rized Mercedes-Benz Center to have the roll
bars lowered.
Warning!G
If the yellow roll bar warning lamp \ in
the clock does not go out after starting the
engine, or if it comes on while driving, then
the roll bar system is not operating properly
and may not activate in an accident. In this
case, raise the roll bars manually before
continuing to drive (
For safety reasons, drive only with the roll
bars raised until the malfunction is repaired.
Have your vehicle checked at an authorized
Mercedes-Benz Center.
컄 page 430).
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Safety and Security
Occupant safety
Children in the vehicle
If an infant or child is traveling with you in
the vehicle:
왘 Secure the child using an infant or child
restraint appropriate to the age and
size of the child.
왘 Make sure the infant or child is proper-
ly secured at all times while the vehicle
is in motion.
Warning!G
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system. The children could
앫 injure themselves on parts of the vehicle
앫 be seriously or fatally injured through
excessive exposure to extreme heat or
cold
If children open a door, they could
앫 injure other persons
앫 get out of the car and injure themselves
or be injured by oncoming traffic
Do not expose the child restraint system to
direct sunlight. The child restraint system’s
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
Do not carry heavy or hard objects in the
passenger compartment or trunk unless
they are firmly secured in place. For more information, see “Loading” (
see “Useful features” (
“Controls in detail” chapter.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of
앫 strong braking maneuvers
앫 sudden changes of direction
앫 an accident
컄 page 275), and
컄 page 285) in the
Infant and child restraint systems
We recommend all infants and children be
properly restrained at all times while the
vehicle is in motion.
All lap-shoulder belts except the driver’s
seat belt have special seat belt retractors
for secure fastening of child restraints.
To fasten a child restraint, follow child
restraint instructions for mounting. Then
pull the shoulder belt out completely and
let it retract. During seat belt retraction, a
ratcheting sound can be heard to indicate
that the special seat belt retractor is activated. The belt is now locked. Push down
on child restraint to take up any slack.
To deactivate, release seat belt buckle and
let seat belt retract completely. The seat
belt can again be used in the usual
manner.
Warning!G
Never release the seat belt buckle while the
vehicle is in motion, since the special seat
belt retractor will be deactivated.
83
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Safety and Security
Occupant safety
For information on LATCH-type child seat
i
anchors (
CLK coupe: Information on child seats with anchor fittings for tether anchorages (
컄 page 87).
컄 page 86).
The use of infant or child restraints is
required by law in all 50 states, the District
of Columbia, the U.S. territories, and all
Canadian provinces.
Infants and small children should be seated in an appropriate infant or child
restraint system properly secured in accordance with the manufacturer's instructions for the child restraint, that complies
with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian Motor Vehicle Safety Standards 213 and
210.2.
A statement by the child restraint manufacturer of compliance with these standards can be found on the instruction label
on the restraint and in the instruction
manual provided with the restraint.
When using any infant, or toddler restraint,
or booster seat, be sure to carefully read
and follow all manufacturer’s instructions
for installation and use.
Please read and observe warning labels
affixed to the inside of the vehicle and to
infant or child restraints.
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seating position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriate infant or child restraint recommended for the size and weight of the child.
The infant or child restraint must be properly
secured with the vehicle’s seat belt, or:
CLK coupe: the seat belt and top tether
strap, or lower anchors and top tether
strap,
CLK cabriolet: the seat belt and lower
anchors,
fully in accordance with the child seat
manufacturer’s instructions.
Occupants, especially children, should never place their bodies or lean their heads in
the area of the door or the rear side trim
panel where the front side impact air bag
(CLK cabriolet: head-thorax air bag) and/or
the rear side impact air bag* inflates. This
could result in serious injuries or death
should the air bag be triggered. Always sit as
upright as possible, properly use the seat
belts and use an appropriately sized infant
restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front
passenger seat:
84
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Safety and Security
Occupant safety
앫 Your vehicle is equipped with air bag
technology designed to turn off the front
passenger front air bag in your vehicle
when the OCS senses the weight of a
typical 12-month-old child or less along
with the weight of a standard
appropriate child restraint on the front
passenger seat.
앫 A child in a rear-facing child restraint on
the front passenger seat will be
seriously injured or even killed if the
front passenger front air bag inflates in
a collision which could occur under
some circumstances, even with the air
bag technology installed in your vehicle.
The only means to completely eliminate
this risk is to never place a child in a
rear-facing child restraint in the front
seat. We therefore strongly recommend
that you always place a child in a
rear-facing child restraint in the back
seat.
앫 If you must install a rear-facing child
restraint on the front passenger seat
because circumstances require you to
do so, make sure the 56 indicator lamp is illuminated, indicating that
the front passenger front air bag is deactivated. Should the 56 indicator
lamp not illuminate or go out while the
restraint is installed, please check installation. Periodically check the
56 indicator lamp while driving
to make sure the 56 indicator
lamp is illuminated. If the 56
indicator lamp goes out or remains out,
do not transport a child on the front passenger seat until the system has been
repaired. A child in a rear-facing child restraint on the front passenger seat will
be seriously injured or even killed if the
front passenger front air bag inflates.
앫 If you have to place a child in a
forward-facing child restraint on the
front passenger seat, move the seat as
far back as possible, use the proper
child restraint recommended for the
age, size and weight of the child, and
secure child restraint with the vehicle’s
seat belt according to the child seat
manufacturer’s instructions.
For children larger than the typical
12-month-old child, the front passenger
front air bag may or may not be activated
(
컄 page 73).
Warning!G
Infants and small children should never
share a seat belt with another occupant.
During an accident, they could be crushed
between the occupant and seat belt.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle
and/or the child is not properly secured in
the child restraint.
Children too big for a toddler restraint must
ride in seats using regular seat belts. Position shoulder belt across chest and shoulder, not face or neck. A booster seat may be
necessary to achieve proper belt positioning
for children over 41 lbs until they reach a
height where a lap/shoulder belt fits
properly without a booster.
컄컄
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Safety and Security
Occupant safety
컄컄
When the child restraint is not in use,
remove it from the vehicle or secure it with
the seat belt to prevent the child restraint
from becoming a projectile in the event of
an accident.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system. Unsupervised
children in a child restraint system may use
vehicle equipment and may cause an
accident and/or serious personal injury.
1 Anchorage ring
2 Hook
1 Anchorage ring
2 Hook
Installation of infant and child restraint
systems
The CLK coupe is equipped with tether
anchorages for a top tether strap at each
of the rear seating positions.
Your CLK cabriolet does not have and is not
i
required to have anchorage rings for a child
seat’s top tether strap in the rear seating positions. Child seats can be used with the seat belt,
or lower anchor system and seat belt, fully in accordance with the child seat manufacturer’s instructions.
86
왘 Open the trunk and release the rear
seat backrest (
왘 Fold rear seat backrest slightly for-
컄 page 281).
ward.
왘 Guide top tether strap between head
restraint and top of seat back.
Head restraint must be installed and
positioned such that the top tether
strap can pass freely between the head
restraint and the top of seat back.
Make sure the tether strap is not
twisted.
왘 Fold up anchorage ring 1.
왘 Securely fasten hook 2, which is part
of the tether strap, to anchorage
ring 1.
For safety, make sure the hook 2 has at-
i
tached to the anchorage ring 1 beyond the
safety catch, as illustrated.
왘 Sw ing rear seat bac krest to t he rear un-
til it engages.
왘 Check the rear seat backrest to be
locked in its upright position
(
컄 page 282).
Page 88
Warning!G
Always lock backrest in its upright position
when rear seat bench is occupied by passengers, or the extended cargo area is not in
use. Check for secure locking by pushing
and pulling on the backrest.
Once the top tether anchorage hook is
attached, the child restraint itself can be
secured. Secure the child restraint and
tighten the top tether strap according to
the child restraint manufacturer’s instructions.
Child seat anchors – LATCH-type
The CLK coupe and cabriolet are equipped
with two LATCH- (L
ers for CH
ildren) type anchors (at each of
ower Anchors and Teth-
the rear seats) for the installation of a
LATCH-type child seat with matching
mounting fittings.
Warning!G
Children too big for a toddler restraint must
ride in seats using regular seat belts.
Position shoulder belt across chest and
shoulder, not face or neck.
A booster seat may be necessary to achieve
proper belt positioning for children over
41 lbs until they reach a height where a
lap/shoulder belt fits properly without a
booster.
Install child seat according to manufacturer’s instructions.
The ch il d sea t must be firmly attached to the
right and left side anchor.
An incorrectly mounted child seat may come
loose during an accident which could result
in serious injury or death to the child.
Damaged or impact damaged child seats or
child seat anchor fittings must be replaced.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system.
Safety and Security
Occupant safety
Non-LATCH-type child seats may also be
i
used and can be installed using the vehicle’s
seat belt system (
according to the manufacturer’s instructions.
LATCH-type anchors
The LATCH-type anchors are located between the seat cushion and the backrest.
1 Anchors
왘 Install child seat according to the
manufacturer’s instructions.
컄 page 83). Install child seat
87
Page 89
Safety and Security
Occupant safety
Blocking of rear side window operation
You can block the rear side window
operation (for instance when you have
children riding in the rear passenger
compartment).
The override switch is located on the door
control panel of the driver’s door.
Activate the override switch when children
are riding in the back seats of the vehicle.
The children may otherwise injure themselves, e.g. by becoming trapped in the window opening.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unattended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised access to a vehicle could result in an accident
and/or serious personal injury.
Activating override switch
왘 Slide override switch 3 to the right in
direction 2.
The rear side windows can no longer be
operated using the respective switch
located in the rear trim panels.
Operation of the rear side windows with the
i
switches located on the door control panel of the
driver’s door is still possible.
Deactivating override switch
왘 Slide override switch 3 to the left in
direction 1.
The rear side windows can be operated
using the respective switch located in
the rear trim panels.
For more information, see “Power windows” (
컄 page 250).
88
Page 90
왔 Panic alarm
1 Â button
USA only:
i
This device complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Canada only:
i
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Activating
왘 Press and hold button  for at least
1 second.
An audible alarm and flashing exterior
lamps will operate briefly.
Safety and Security
Panic alarm
Deactivating
왘 Press button  again.
or
왘 Insert the SmartKey or the SmartKey
with KEYLESS-GO* in starter switch.
or
왘 Press the KEYLESS-GO* start/stop
button (
The SmartKey with KEYLESS-GO* must
be inside the vehicle.
컄 page 39).
89
Page 91
Safety and Security
Driving safety systems
In this section you will find information on
the following driving safety systems:
앫 ABS (Antilock Brake System)
앫 BAS (Brake Assist System)
®
앫 ESP
(Electronic Stability Program)
Warning!G
The following factors increase the risk of
accidents:
앫 Excessive speed, especially in turns
앫 Wet and slippery road surfaces
앫 Following another vehicle too closely
®
The ABS, BAS, and ESP
risk.
Always adjust your driving style to the
prevailing road and weather conditions.
In winter operation, the maximum effective-
i
ness of the ABS, the BAS, and the ESP
achieved with winter tires (컄 page 362) or snow
chains as required.
cannot reduce this
®
is only
ABS
Warning!G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pumping the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of
approximately 5 mph (8 km/h) independent of road surface conditions.
On slippery road surfaces, the ABS will
respond even to light brake pressure.
The - indicator lamp in the instrument
cluster (
컄 page 28) comes on when you
switch on the ignition. It goes out when the
engine is running.
90
Page 92
Safety and Security
Driving safety systems
Braking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating that the ABS is in
the regulating mode.
왘 Keep firm and steady pressure on the
brake pedal while experiencing the
pulsation.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
The pulsating brake pedal can be an
indication of hazardous road conditions
and functions as a reminder to take extra
care while driving.
Emergency brake maneuver
왘 Keep continuous full pressure on the
brake pedal.
Warning!G
When the ABS is malfunctioning, the BAS
and the ESP
sic driving and braking functions are still
available.
When the ABS is malfunctioning, the wheels
may lock during hard braking, reducing
steering capability and extending the braking distance.
®
are also switched off. The ba-
Warning!G
The ABS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking or steering efficiency
beyond that afforded by the condition of the
vehicle brakes and tires or the traction available on the road surface. The ABS cannot
prevent accidents, including those resulting
from excessive speed in turns, following another vehicle too closely, or hydroplaning.
Only a safe, attentive, and skillful driver can
prevent accidents. The capabilities of an
ABS equipped vehicle must never be exploited in a reckless or dangerous manner which
could jeopardize the user’s safety or the
safety of others.
For more information, see “Practical hints”
(
컄 page 377).
91
Page 93
Safety and Security
Driving safety systems
BAS
The Brake Assist System (BAS) operates in
emergency situations. If you apply the
brakes very quickly, the BAS automatically
provides full brake boost, thereby potentially reducing the braking distance.
왘 Apply continuous full braking pressure
until the emergency braking situation is
over.
The ABS will prevent the wheels from
locking.
When you release the brake pedal, the
brakes function again as normal. The BAS
is then deactivated.
Warning!G
If the BAS is malfunctioning, the brake system is still functioning normally, but without
the additional brake boost available that
BAS would normally provide in an emergency braking maneuver. Therefore, the braking
distance may increase.
Warning!G
The BAS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking efficiency beyond that
afforded by the condition of the vehicle
brakes and tires or the traction. The BAS
cannot prevent accidents, including those
resulting from excessive speed in turns, following another vehicle too closely, or hydroplaning. Only a safe, attentive, and skillful
driver can prevent accidents. The
capabilities of a BAS equipped vehicle must
never be exploited in a reckless or dangerous manner which could jeopardize the
user’s safety or the safety of others.
®
ESP
The Electronic Stability Program (ESP®) is
operational as soon as the engine is running and monitors the vehicle’s traction
(force of adhesive friction between the
tires and the road surface) and handling.
The ESP
®
recognizes when a wheel is
spinning or if the vehicle starts to skid. By
applying the brakes to the appropriate
wheel and by limiting the engine output,
the ESP
The ESP
®
works to stabilize the vehicle.
®
is especially useful while driving
off and on wet or slippery road surfaces.
The ESP
®
also stabilizes the vehicle during
braking and steering maneuvers.
The ESP
®
warning lamp v in the
instrument cluster flashes when the ESP
is engaged.
The ESP
®
warning lamp v in the
instrument cluster comes on when you
switch on the ignition. It goes out when the
engine is running.
®
92
Page 94
Warning!G
Never switch off the ESP® when you see the
®
ESP
warning lamp v flashing in the
instrument cluster. In this case, proceed as
follows:
앫 While driving off, apply as little throttle
as possible.
앫 While driving, ease up on the accelera-
tor.
앫 Adapt your speed and driving style to
the prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The ESP® cannot prevent accidents resulting from excessive speed.
Warning!G
The ESP® cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase the traction afforded by the existing road and tire conditions. The ESP
cannot prevent accidents, including those
resulting from excessive speed in turns or
hydroplaning. Only a safe, attentive, and
skillful driver can prevent accidents. The
capabilities of an ESP
®
equipped vehicle
must never be exploited in a reckless or dangerous manner which could jeopardize the
user’s safety or the safety of others.
®
Safety and Security
Driving safety systems
The ESP® will only function properly if
i
you use wheels of the recommended tire
size (
컄 page 482).
Because the ESP® operates automatically,
!
the engine and the ignition must be shut off
(SmartKey in starter switch position 0 or 1 or
KEYLESS-GO* start/stop button in position 0
or 1) when
앫 the parking brake is being tested on a brake
test dynamometer
앫 the vehicle is being towed with the front axle
raised
Active braking action through the ESP
otherwise seriously damage the brake system.
For more information, see the “Practical
hints” section (
(
컄 page 394).
컄 page 384) and
®
may
93
Page 95
Safety and Security
Driving safety systems
Electronic traction system
The electronic traction system is a
component of ESP
®
.
The electronic traction system improves
the vehicle’s ability to utilize available
traction, especially under slippery road
conditions by applying the brakes to a
spinning wheel.
When you switch off the ESP
®
, the
electronic traction system is still enabled.
Warning!G
If you are driving too fast, the electronic
traction system cannot reduce the risk of an
accident.
The electronic traction system cannot prevent the natural laws of physics from acting
on the vehicle.
Switching off the ESP
®
Switching off the ESP®
(except CLK 63 AMG)
Warning!G
The ESP® should not be switched off during
normal driving other than in the circumstances described below. Disabling of the
system will reduce vehicle stability in standard driving maneuvers.
Do not switch off the ESP
wheel is mounted.
®
when a spare
To improve the vehicle's traction, switch
®
off the ESP
in driving situations where it
would be advantageous to have the drive
wheels spin and thus cut into surfaces for
better grip such as:
앫 when driving with snow chains
앫 in deep snow
Warning!G
Switch on the ESP® immediately if the aforementioned circumstances do not apply anymore. Otherwise the ESP
the vehicle when it is starting to skid or a
wheel is spinning.
When you switch off the ESP
앫 the ESP
앫 the engine output is not limited, which
®
does not stabilize the vehicle
®
will not stabilize
®
allows the drive wheels to spin and
thus cut into surfaces for better grip
앫 the traction control will still apply the
brakes to a spinning wheel
앫 the ESP
®
continues to operate when
you are braking
앫 you cannot activate the cruise control
앫 the cruise control switch off if currently
activated
94
앫 in sand or gravel
Page 96
Safety and Security
Driving safety systems
When the ESP® is switched off and one or
i
more drive wheels are spinning, the ESP
warning lamp v in the instrument cluster
flashes. However, the ESP
®
will then not
®
stabilize the vehicle.
The ESP® switch is located on the center
console.
®
1 ESP
왘 With the engine running, press ESP
switch
switch 1 until the ESP
®
warning
®
lamp v in the instrument cluster
comes on.
The ESP
®
is switched off.
Warning!G
When the ESP® warning lamp v is
illuminated continuously, the ESP
switched off or is not operational due to a
malfunction. Vehicle stability in standard
driving maneuvers reduces.
Adapt your speed and driving to the prevailing road conditions and to the non-operating
status of the ESP
Avoid spinning of a drive wheel for an
!
extended period with the ESP
®
.
®
may cause serious damage to the drivetrain
which is not covered by the Mercedes-Benz
Limited Warranty.
®
is
switched off. This
Switching off the ESP
®
(CLK 63 AMG only)
Warning!G
The ESP® should not be switched off during
normal driving. Disabling of the system will
result in the following:
앫 no restriction to engine torque
앫 loss of system supported traction
control
®
Off” is designed for driving on closed
“ESP
tracks when the natural oversteer and
understeer characteristics are desired and
requires a highly skilled and experienced
driver able to handle these critical driving
situations.
You could lose control of your vehicle and
cause an accident.
Please be aware of these limits when you
switch off the ESP
®
.
95
Page 97
Safety and Security
Driving safety systems
When you switch off the ESP
앫 the ESP
앫 the engine output is not limited, which
®
does not stabilize the vehicle
®
allows the drive wheels to spin and
thus cut into surfaces for better grip
앫 the traction control will still apply the
brakes to a spinning wheel
앫 the ESP
®
operates while you are
braking
앫 you cannot activate the cruise control
앫 the cruise control switch off if currently
activated
When the ESP® is switched off and one
i
or more drive wheels are spinning, the ESP®
warning lamp v in the instrument cluster
flashes. However, the ESP
stabilize the vehicle.
®
will then not
The ESP
®
switch is located on the center
console.
®
1 ESP
왘 With the engine running, press ESP
switch
switch 1 until the ESP
®
warning
lamp v in the instrument cluster
comes on.
The ESP
®
is switched off.
Warning!G
When the ESP® warning lamp v is
illuminated continuously, the ESP
switched off or is not operational due to a
malfunction. Vehicle stability in standard
driving maneuvers reduces.
Adapt your speed and driving to the prevailing road conditions and to the non-operating
status of the ESP
Avoid spinning of a drive wheel for an
!
®
extended period with the ESP
®
.
may cause serious damage to the drivetrain
which is not covered by the Mercedes-Benz
Limited Warranty.
Switching on the ESP
왘 Press ESP
®
switch 1 until the ESP®
®
warning lamp v in the instrument
cluster goes out.
You are now again in normal driving
mode with ESP
®
switched on.
®
is
®
switched off. This
96
Page 98
왔 Anti-theft systems
Immobilizer
Deactivating
Safety and Security
Anti-theft systems
Anti-theft alarm system
The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey or SmartKey with KEYLESS-GO*
with you and lock the vehicle. The engine
can be started by anyone with a valid
SmartKey or SmartKey with KEYLESS-GO*
that is left inside the vehicle.
Activating
With the SmartKey
왘 Remove the SmartKey from the starter
switch.
With KEYLESS-GO*
왘 Turn off the engine by means of the
start/stop button (
컄 page 39) on the
gear selector lever.
왘 Open the driver’s door.
With the SmartKey
왘 Insert the SmartKey in the starter
switch.
With KEYLESS-GO*
왘 Switch on the ignition (컄 page 40).
Starting the engine will also deactivate the
i
immobilizer.
In case 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).
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
앫 a door
앫 the trunk
앫 the hood
The alarm will stay on even if the activating
element (e.g. a door) is immediately
closed.
The alarm system will also be triggered
when
앫 the vehicle is opened with the
mechanical key.
앫 someone opens a door from the inside.
앫 someone opens the trunk with the
emergency release button.
97
Page 99
Safety and Security
Anti-theft systems
If the alarm stays on for more than
i
30 seconds, a call to the Response Center is initiated automatically by the Tele Aid system
(
컄 page 295) provided Tele Aid service was sub-
scribed to and properly activated, and that necessary cellular service and GPS coverage are
available.
Arming the alarm system
The indicator lamp is in the center console.
1 Indicator lamp
왘 Lock the vehicle with the SmartKey or
KEYLESS-GO*.
The turn signal lamps flash three times,
and an acoustic signal sounds three
times, to indicate that the alarm system is armed.
Indicator lamp 1 begins to flash after
approximately 30 seconds after arming
the alarm system.
If the turn signal lamps do not flash three
i
times, and the acoustic signal do not sounds
three times (if equipped and feature activated),
one of the following elements may not be properly closed:
앫 a door
앫 the trunk
Close the respective element and lock the vehicle again.
Disarming the alarm system
왘 Unlock your vehicle with the SmartKey
or KEYLESS-GO*.
The turn signal lamps flash once, and
an acoustic signal sounds once, to
indicate that the alarm system is
disarmed.
The alarm system will rearm automatically
i
after approximately 40 seconds if neither a door
nor the trunk lid was opened.
Canceling the alarm
With the SmartKey
왘 Press the Œ or ‹ button on the
SmartKey.
or
왘 Insert the SmartKey in the starter
switch.
With KEYLESS-GO*
왘 Pull an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft (1 m) of the vehicle.
or
왘 Press the KEYLESS-GO start/stop
button (
컄 page 39).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
98
Page 100
Controls in detail
Locking and unlocking
Seats
Memory function
Lighting
Instrument cluster
Control system
Automatic transmission
Good visibility
Climate control
Automatic climate control
Audio system
Power windows
Power tilt/sliding sunroof* (Coupe)
Soft top (Cabriolet)
Driving systems
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Useful features
99
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