center console MERCEDES-BENZ CLK550 2008 C209 Owner's Guide

399 Practical hints
What to do if …?
Display messagePossible cause/ consequencePossible solution
Monitor the 56indicator lamp on the center console (page 31) and
the multifunction display in the instrument cluster (
page 28) for the following:
With the seat unoccupied and the ignition turned on,

the 56indicator lamp on the center console should illuminate and
remain illuminated, indicating that the OCS (
page 72) has deactivated the
air bag.

the message Front Passenger Airbag Enabled See Operator’s Manual or
the message
Front Passenger Airbag Disabled See Operator’s Manual
should not appear in the multifunction display at any time the seat is unoc-
cupied. Wait at least 60 seconds for the system to complete the necessary
check cycles and to make sure neither message appears in the multifunc-
tion display.
If above conditions are met, you can occupy the front passenger seat again. De-
pending on the front passenger classification sensed by the OCS (
page 72),
the 56indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working properly. Have the
system checked as soon as possible at an authorized Mercedes-Benz Center.
Warning!G
If the 56indicator lamp remains
illuminated with an adult occupant on the
front passenger seat even after performing
the above corrective steps, do not have anypassenger use the front passenger seat until
the system has been repaired.

428 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 5.71 ft
(1.74 m) (CLK coupe) or 5.41 ft (1.65 m)
(CLK cabriolet) is required to open the
trunk lid.
The trunk lid lock is located next to the
handle above the rear license plate recess.Insert the mechanical key3 into the
trunk lid lock until it stops.
Turn the mechanical key3
counterclockwise to position1 and
hold it in this position.
Pull the trunk lid handle2 and lift the
trunk lid.
The trunk opens.
Turn the mechanical key3 back and
remove it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or SmartKey with
KEYLESS-GO*, do the following:
Close the passenger door and the
trunk.
Press the central locking switch in the
center console (
page 118).
Check to see whether the locking knob
on the passenger door has moved
down.
If necessary, push it down manually.
Remove the mechanical key out of the
SmartKey (
page 427).
Check whether the trunk is locked.
If necessary, lock the trunk with the
mechanical key (
page 118).
Except for the driver’s door, the vehicle
should now be locked.
1Unlocking in an emergency
2Handle
3Mechanical key
!The trunk lid swings open upwards
automatically. Always make sure there is suffi-
cient overhead clearance.

499 Index
C
California retail buyers and
lessees, Important notice for 11
Call priority (Tele Aid) 300
Can holder see Cup holder
Capacities and
recommended fuels/lubricants 489
Cargo area see Trunk
Cargo tie-down rings 284
Carpets, cleaning 375
Catalytic converter 318
CD changer* 229
MP3 230
CD player 229
Control system 152
Center console 31
Lower part 32
Upper part 31
Central locking
Automatic 118, 166
Locking/unlocking from inside 119
Central locking switch 119
Certification label 478
Certification label, examples 478
Charcoal filter 209Checking tire pressure electronically
Tire Pressure Monitoring System
(TPMS), (USA only) 344
Children in the vehicle 83
Air bags 83
Blocking
rear side window operation 88
Front passenger front
air bag off indicator lamp 76
Infant and
child restraint systems 77, 83, 86
LATCH-type child seat anchors 87
Occupant Classification System
(OCS) 72
Cigarette lighter 290
Climate control
see Climate control system
Climate control system
Air conditioning refrigerant 491
Air conditioning, Cooling 198, 210
Air distribution 194, 205
Air recirculation mode 196, 207
Air vents 199, 212
Air volume 194, 195, 206
Charcoal filter 209Control panel,
Automatic climate control 201
Deactivating/Reactivating 193, 203
Defogging 206
Defrosting 206
Defrosting, rear window 189
Front defroster 195
MAXCOOL 207
Residual engine heat
and ventilation* (REST*) 211
Temperature 194, 204
Clock 29, 140, 160
Setting time 160
Cockpit 26
Cold tire inflation pressure 358
Collapsible wheel chock 422, 424
COMAND* see separate
COMAND operating instructions
Combination switch 55, 133
Control system 141
Functions 143, 145
Multifunction display 141
Multifunction steering wheel 142
Resetting to factory default 155

501 Index
Overall analysis 150
RACETIMER 149
Symbol messages 403–420
Text messages 394–401
Vehicle status message memory 154
Vehicle status messages
see Multifunction display messages
Vehicle supply voltage 148
Distance to empty (Range),
Trip computer 168
Door
Entry lamps 137
Handle (inside) 34
Locking/unlocking,
KEYLESS-GO* 37, 106
Locking/unlocking,
SmartKey 36, 102
Opening from inside/outside 109
Remote door unlock (Tele Aid) 300
Unlocking, Mechanical key 427
Door control panel 34
Door handle 109
DOT 358
Drinking and driving 309Driving
Abroad 317
Hydroplaning 314
In winter 316
Instructions 48, 309
Problems 58
Safety systems 90
Systems 267
Through standing water 317
Driving off 312
Driving safety systems
ABS 90
BAS 92
Electronic traction system 94
ESP
®92
Driving systems
Cruise control 267
Parktronic system*
(CLK 63 AMG (USA),
Canada all models) 271
Driving tips 176
Accelerator position 176
Kickdown 176E
Easy-entry/exit feature 45, 166
Electrical fuses see Fuses
Electrical outlet 291
Electrical system, Technical data 487
Electronic Stability Program see ESP
®
Emergency call system* 295
Emergency calls
911 calls 248
Tele Aid calls 296, 297
Emergency, In case of
Instrument cluster,
Indicator lamps 378–388
Emergency operation
(Limp-Home Mode) 184
Emergency operations
Active head restraints, Resetting 440
Center console,
Indicator lamps 390–391
Gear selector lever, Unlocking 429
Instrument cluster,
Indicator lamps 378–387
Remote door unlock 300

506 Index
K
Key, Mechanical 427
Key, SmartKey 100
Batteries 108
Battery check lamp 102, 107
Changing batteries 442
Factory setting 102, 103
Ignition 38
Locking/unlocking 36, 62, 100
Locking/unlocking,
Global setting 102
Locking/unlocking,
Selective setting 102
Loss of 109
Message in display 411
Opening and closing the
power tilt/sliding sunroof* 257
Opening and closing the
power windows 253
Opening and closing the soft top 263
Positions in starter switch 38
Remote control 100
SmartKey with KEYLESS-GO* 103
Starting the engine 52
Steering wheel lock 38
Turning off the engine 60Unlocking/opening trunk lid 103
KEYLESS-GO* 103
Battery check lamp, SmartKey 107
Factory setting 106, 108
Ignition 40
Important notes 105
Lock button 62
Locking/unlocking 37, 62, 103
Locking/unlocking,
Global setting 106
Locking/unlocking, Selective
setting 107
Loss of key 109
Messages in display 410
Remote control 103
Start / stop button 39
Starting the engine 52
Turning off the engine 60
Unlocking/opening trunk lid 108
Kickdown 176
Kilopascal 359L
Labels 478
Certification 478
Emission control information 479
Lamp sensor see Light sensor
Lamps, exterior 444
Light sensor 411
Messages in display 411–415
Lamps, indicator and warning
ABS 29, 378
Battery (SmartKey) 102, 107
Brakes 29, 380
Center console 390–391
CHECK ENGINE 381
Coolant 382
Coolant temperature 29, 139
Distance warning 29
Engine diagnostics 381
Engine malfunction 29, 381
ESP
®384
Fog lamps 132
Front passenger front air bag off 70
Front passenger front
air bag off indicator lamp 390
Fuel reserve 29, 385
High beam headlamp 29