Page 303 of 521

302 Controls in detail
Useful features
Interior rear view mirror with integrated re-
mote control
1Indicator lamp
2 3 4Signal transmitter button
Needed for programming (not part of
vehicle equipment):
5Hand-held remote control of ga-
rage door opener, gate operator
or other device
6Hand-held remote control
buttonProgramming the integrated remote
control
Step 1:
Switch on the ignition (page 40).
Step 2:
If you have previously programmed a
signal transmitter button and wish to
retain its programming, proceed to
step 3.
If you are programming the integrated
remote control for the first time, press
and hold the two outer signal transmit-
ter buttons2 and4 and release
them only when indicator lamp1
Warning!G
Before programming the integrated remote
control to a garage door opener or gate
operator, make sure people and objects are
out of the way of the device to prevent po-
tential harm or damage. When programming
a garage door opener, the door moves up or
down. When programming a gate operator,
the gate opens or closes.
Do not use the integrated remote control
with any garage door opener that lacks
safety stop and reverse features as required
by U.S. federal safety standards (this
includes any garage door opener model
manufactured before April 1, 1982).
A garage door that cannot detect an object
– signaling the door to stop and reverse –
does not meet current U.S. federal safety
standards.
When programming a garage door opener,
park outside the garage.
Do not run the engine while programming
the integrated remote control. Inhalation of
exhaust gas is hazardous to your health. All
exhaust gas contains carbon monoxide
(CO), and inhaling it can cause unconscious-
ness and possible death.
Page 371 of 521

370 Operation
Vehicle care
Soft top (CLK cabriolet)
Frequent cleaning reduces the
dirt-repellent effect of the soft top.
Intensive cleaning with Mercedes-Benz
car-care products for convertible soft tops
can help to restore the dirt-repellent
effect. Contact an authorized
Mercedes-Benz Center for detailed
information.
Light colored soft tops should be cleaned
frequently to prevent spots and dirt from
setting in, which could stain and discolor
the soft top material permanently.
Incorrect cleaning and care, as well as
ageing, can cause the soft-top seams to
leak. Have the soft-top seams sealed at a
Mercedes-Benz Center.!Make sure the windshield wiper switch is
set to0 (
page 56). Otherwise, e.g. the rain
sensor could activate and cause the wipers to
move unintentionally. This may lead to vehicle
damage.
Due to the width of the vehicle, fold in exterior
rear view mirrors prior to running the vehicle
through an automatic car wash to prevent
damage to the mirrors.
iAfter running the vehicle through an
automatic car wash, wipe any wax off of the
windshield (
page 373). This will prevent
smears and reduce wiping noise which can be
caused by residual wax on the windshield.
When leaving the car wash, make sure the mir-
rors are folded out. Otherwise they may vibrate.
iIf the soft top is kept in the storage
compartment for a lengthy period, raise it and air
out with the windows open about every
4months.
Place a suitable cover over the soft top if you are
leaving the vehicle parked in the open for an
extended period of time.
!Remove bird droppings immediately. The
organic acid damages the material and causes
the soft top to leak.
Never use a power washer to clean the soft top,
as you may damage the soft top material.
Do not use sharp-edged instruments for the
removal of ice and snow.
Never use hot-wax when you run the vehicle
through an automatic car wash, as you may
damage the soft top material.
Page 416 of 521

415 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
. Tail Lamp
Right
Auxiliary Bulb On
The right tail lamp is malfunctioning. A
backup bulb is being used.Replace the bulb as soon as possible
(
page 448).
Left Mirror
Turn SignalThe turn signal in the left exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if a critical number
of LEDs have stopped working.Contact an authorized Mercedes-Benz
Center as soon as possible.
Right Mirror
Turn SignalThe turn signal in the right exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if a critical number
of LEDs have stopped working.Contact an authorized Mercedes-Benz
Center as soon as possible.
Turn Signal
Rear Left
Auxiliary Bulb On
The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.Replace the bulb as soon as possible
(
page 448).
Turn Signal
Rear Right
Auxiliary Bulb On
The right rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.Replace the bulb as soon as possible
(
page 448).
Page 446 of 521

445 Practical hints
Replacing bulbs
Notes on bulb replacement
Only use 12 volt bulbs of the same type
and with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.
Have the LEDs and bulbs for the following
lamps replaced at an authorized
Mercedes-Benz Center.
Additional turn signal lamps in the exte-
rior rear view mirrors
High mounted brake lamp
Bi-Xenon* lamps
Front fog lamps
Front side marker lamps
Warning!G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
!Do not replace the LEDs yourself. You could
otherwise damage the LEDs or parts of the
vehicle. Only have the LEDs replaced at an au-
thorized Mercedes-Benz Center.
Page 449 of 521

448 Practical hints
Replacing bulbs
Reinsert bulb holder4 w i t h t h e b u l b i n
the lamp and turn clockwise.
Align housing cover2 and turn it
clockwise.
Front turn signal lamp bulb
Turn bulb socket1 counterclockwise
and remove it.
Press gently onto the bulb and turn
counterclockwise out of bulb
socket1.
Press the new bulb gently into bulb
socket1 and turn clockwise until it
engages.
Place bulb socket1 back into the
lamp and turn it clockwise.
Parking and standing lamp bulb
Turn housing cover2 counterclock-
wise and remove it.
Pull out bulb socket5 with the bulb.
Pull the bulb out of the bulb socket5.
Press the new bulb into bulb socket5.
Press bulb socket5 back into the
lamp.
Align housing cover2 and turn it
clockwise.
Additional turn signal lamps
The additional turn signal lamps in the ex-
terior rear view mirrors have LEDs.
If a malfunction occurs or LEDs fail to func-
tion, the entire turn signal unit must be re-
placed. Have the additional turn signal unit
replaced at an authorized Mercedes-Benz
Center.
Front side marker lamp
Since replacing the side marker lamp bulbs
is a technically highly demanding process,
we recommend you have the side marker
lamp bulbs replaced at an authorized
Mercedes-Benz Center.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the exterior lamp switch to
positionM (
page 129).
Tail lamp unit
Open trunk lid.
Swing the trim panel covering the
corresponding rear lights to the side.
1Connector
2Tab
Disconnect electrical connector1.
Page 489 of 521
488 Technical data
Main dimensions and weights
Main dimensions
Weights
ModelCLK 350CLK 550CLK 63 AMG
Overall vehicle length183.3 in (4 657 mm)183.3 in (4 657 mm)183.3 in (4 657 mm)
Overall vehicle width
(exterior rear view mirrors
folded out) 78.4 in (1 991 mm)78.4 in (1 991 mm)78.4 in (1 991 mm)
Overall vehicle height
Coupe:
Cabriolet:
55.4 in (1 408 mm)
55.6 in (1 413 mm)55.4 in (1 408 mm)
55.4 in (1 408 mm)
55.3 in (1 400 mm)
Overall vehicle height when
opening/closing soft top80.2 in (2 038 mm)81.0 in (2 057 mm)80.6 in (2 047 mm)
Wheelbase106.9 in (2 715 mm)106.9 in (2 715 mm)106.9 in (2 715 mm)
Track, front58.8 in (1 493 mm)58.9 in (1 497 mm)58.9 in (1 495 mm)
Track, rear58.0 in (1 474 mm)58.2 in (1 478 mm)58.0 in (1 474 mm)
Roof load max.
(CLK coupe only)
220 lbs (100 kg)
Trunk load max.220 lbs (100 kg)
Page 498 of 521

497 Index
A
ABS 29, 90
Malfunction indicator lamp 378
Messages in display 394
Accelerator position,
automatic transmission 176
Accessory weight 358
Accident 58
Active head restraints 81
Resetting 440
Air bags 65
Children 83
Front passenger front
air bag off indicator lamp 76
Front side impact air bags 70
Front, Driver 70
Front, Passenger 70
Head-thorax 71
Occupant Classification System
(OCS) 72
Rear side impact air bags* 70
Rear side-impact* 72
Safety guidelines 68
Window curtain 70
Air conditioning refrigerant 491Air conditioning system
see Climate control system
Air conditioning, Cooling 198, 210
Air distribution 194, 205
Air pressure see Tires, Inflation pressure
Air recirculation mode 196, 207
Air vents 199, 212
Air volume 194, 206
Alarm system see Anti-theft systems
Alignment bolt
(vehicle tool kit) 422, 460, 461
AMG menu (CLK 63 AMG only) 148
Lap analysis 151
Overall analysis 150
RACETIMER 149
Vehicle supply voltage 148
Anticorrosion/antifreeze 494, 495
Antiglare, Rear view mirror 185, 186
Antilock Brake System see ABS
Anti-theft systems 97
Anti-theft alarm system 97
Immobilizer 97
Aquaplaning see Hydroplaning
Armrest 287
Ashtrays 289
Aspect ratio 358ATF 327
AUDIO menu 151
CD player (CD, MP3-CD) 152
Radio station 151
Radio station (satellite*) 152
Search function 165
Audio system 213
Button and soft key operation 216
CD changer* 232
CD operation 229
Emergency calls "911" 248
MP3 230
Operating and display elements 214
Operating audio system 213
Operating safety 213
Radio operation 221
Sound system* 213, 217
Switching on/off 216
Telephone* operation 213, 236
Auto-dimming, Rear view mirror 186
Automatic central locking,
Control system 118, 166
Automatic climate control
see Climate control system
Automatic headlamp mode see Headlamps
Page 503 of 521

502 Index
Roll bars, Lowering 431
Roll bars, Releasing 430
Soft top, Closing 432–439
Trunk lid, Releasing from inside 117
Trunk lid, Unlocking 428
Unlocking/locking
the vehicle 427, 428
Emergency tensioning device see ETD
Emergency, In case of
Battery, Jump starting 467
First aid kit 421
Flat tire, Changing 452
Fuses 472
Hazard warning flasher 135
Roadside Assistance 12, 298
Towing the vehicle 469
Emission control 318
Emission control information label 479
Emission system warranties 10Engine
Belt layout 480
Block heater (Canada only) 363
Break-in recommendations 308
Cleaning 369
Compartment 323
Malfunction indicator lamp 29, 381
Maximum engine speed 481
Message in display 405
Number 479
Starting 51
Starting difficulties 53
Starting with KEYLESS-GO* 52
Starting with SmartKey 52
Technical data 481
Turning off 60
Turning off with KEYLESS-GO* 60
Turning off with SmartKey 60
Engine coolant see CoolantEngine oil 325, 491
Adding 327, 491
Additives 491
Changing 327, 491
Checking level 322, 325
Consumption 325
Filler cap 327
Filler neck 327
Engine oil level 322
ESP
®92
Messages in display 394–395
Warning lamp 384
ETD 80
Safety guidelines 68
Exterior rear view mirrors 47, 186
Exterior view 22, 24