ContentsSafety and Security........................... 61
Occupant safety................................... 62
Air bags .......................................... 63
Seat belts ....................................... 69
Active head restraints .................... 73
Roll bars ......................................... 74
Children in the vehicle .................... 75
Blocking of rear side
window operation ........................... 85
Panic alarm .......................................... 86
Activating ....................................... 86
Deactivating ................................... 86
Driving safety systems ......................... 87
ABS ................................................ 87
BAS ................................................ 88
ESP
®.............................................. 89
Anti-theft systems................................ 92
Immobilizer..................................... 92
Anti-theft alarm system .................. 92
Tow-away alarm ............................. 94
Controls in detail............................... 95
Locking and unlocking ......................... 96
SmartKey ....................................... 96
SmartKey with KEYLESS-GO* ...... 100
Opening the doors
from the inside ............................. 107
Opening the trunk ........................ 108
Closing the trunk.......................... 110
Trunk emergency release ............. 115
Valet locking ................................ 116
Automatic central locking ............ 117
Locking and unlocking
from the inside ............................. 118
Seats ................................................. 119
Front seat active head restraints . 119
Rear seat head restraints ............. 119
Multicontour seat* ....................... 121
Seat heating* ............................... 122
Seat ventilation* .......................... 123
Memory function ............................... 124
Storing positions into memory ..... 125
Recalling positions from memory . 125
Storing exterior rear view
mirror parking position................. 126Lighting ............................................. 127
Exterior lamp switch .................... 127
Combination switch ..................... 131
Corner-illuminating front
fog lamps* (CLK with
Bi-Xenon* headlamps)................. 132
Hazard warning flasher ................ 133
Interior lighting ............................ 134
Door entry lamps ......................... 135
Trunk lamp ................................... 135
Instrument cluster ............................. 136
Instrument cluster illumination .... 136
Coolant temperature indicator ..... 137
Trip odometer .............................. 137
Tachometer.................................. 138
Outside temperature indicator ..... 138
Control system .................................. 139
Multifunction display.................... 140
Multifunction steering wheel........ 140
Menus .......................................... 142
Standard display menu ................ 144
AUDIO menu ................................ 145
NAV* menu .................................. 146
Vehicle status
message memory menu ............... 146
Settings menu.............................. 148
9
Product information
Introduction
Product information
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 indi-
vidual cases an official approval or authori-
zation by governmental or other agencies
should exist. Use of such parts and acces-
sories could adversely affect the safety,
performance or reliability of your vehicle.
Please do not use them.Genuine Mercedes-Benz parts as well as
conversion parts and accessories
approved by us are available at your
authorized Mercedes-Benz Center where
you will receive comprehensive informa-
tion, also on permissible technical modifi-
cations, and where proper installation will
be performed.
15 Introduction
Symbols
Symbols
Trademarks:
ESP
® is a registered trademark of
DaimlerChrysler.
HomeLink
® is a registered trademark
of Prince, a Johnson Controls
Company.
SIRIUS and related marks are trade-
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.
This symbol points to instructions for
you to follow.
A number of these symbols appearing
in succession indicates a multiple-step
procedure.
Page This symbol tells you where to
look for further information on a
topic.
This continuation symbol marks
an interrupted procedure which
will be continued on the next
page.
-> In the glossary of technical
terms, this symbol is used to
indicate cross-references to
term definitions.
Display
Words appearing in the multi-
function display are printed in
the type shown here.
Warning!
G
Warning notices draw your attention to haz-
ards that may endanger your health or life,
or the health or life of others.!Highlights hazards that may result in
damage to your vehicle.iHelpful hints or further information you
may find useful.
19 Introduction
Vehicle data recording
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
for safety research or vehicle diagnosis purposes
with the consent of the vehicle owner or lessee
in response to an official request by law enforcement or other government agency
for use in dispute resolution involving DaimlerChrysler, its affiliates or sales/service organization and/or
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.
25 At a glance
Instrument cluster
Item
Page
1
LLeft turn signal indica-
tor lamp
53
2
vESP
® warning lamp
378
3
Speedometer
4
Multifunction display
140
5
lDistance warning
lamp
Warning lamp without func-
tion. It illuminates with the ig-
nition on. It should go out
when the engine is running.
6
KRight turn signal indi-
cator lamp
53
7
Coolant temperature indi-
cator with:
137
•Coolant temperature
warning lamp
377,
398
Item
Page
8
Tachometer with:
138
1Supplemental
Restraint System
(SRS) indicator lamp
380,
409
-Antilock Brake Sys-
tem (ABS) indicator
lamp
374
379
BLow beam headlamp
indicator lamp
131
AHigh beam headlamp
indicator lamp
131
9
Main odometer with:
Gear selector lever
position
140
Program mode
140
Item
Page
a
Clock with:
153
;Brake warning lamp,
USA only
375
3Brake warning lamp,
Canada onlyúEngine malfunction in-
dicator lamp,
USA only
376
±Engine malfunction in-
dicator lamp,
Canada only
376
CRoll bar warning lamp
b
Fuel display with:AFuel reserve warning
lamp
379
c
Reset button for:
Resetting trip odometer
136
Adjusting instrument
cluster illumination
136
Confirming new time set-
tings
153
27 At a glance
Center console
Center console
Upper part
Item
Page
1
Seat heater*, driver’s side
Seat ventilation*, driver’s
side
122
123
2
Parktronic system* deacti-
vation switch (Canada only)
272
3
ESP
® control switch
89
4
Hazard warning flasher
switch - switching on/off
133
5
Central unlocking switch
Central locking switch
118
118
6
Switch for lowering rear
seat head restraints
120
7
Tow-away alarm switch
Anti-theft alarm system
indicator lamp
94
94
Item
Page
8
Seat heater*,
passenger side
Seat ventilation*,
passenger side
122
123
9
Front passenger front air
bag off indicator lamp
81,
381
a
Audio system,
or
COMAND* (see separate
operating instructions)
145
b
Climate control (CLK 350)
Automatic climate control
(CLK 500/CLK 55 AMG)
Rear window defroster
186
196,
185
32 Getting startedThe “Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation 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
Unlocking with the SmartKeySmartKey with remote control 1‹Lock button
2ŠOpening button for trunk
3ŒUnlock button
4ÂPanic button (
page 86)
Press unlock button Œ on the
SmartKey.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is
disarmed.
Enter the vehicle and insert the
SmartKey in the starter switch.For more information, see “SmartKey”
(
page 96).Warning!
G
When leaving the vehicle, 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.
Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.
34 Getting startedUnlockingStarter switch positions
SmartKeyStarter switch
0For removing SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1Power supply for some electrical
consumers, such as seat adjustment.
2Ignition (power supply for all electrical
consumers) and driving position. All
lamps (except low beam headlamp in-
dicator lamp, high beam headlamp indi-
cator lamp, and turn signal indicator
lamps unless activated) in the instru-
ment 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 re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 374).
3Starting position.
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. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
iWhen you switch on the ignition, the
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 indica-
tor lamps if activated) will go out when
the engine is running. This indicates
that the respective systems are
operational.iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in position P.