422 Practical hintsBatteryCharging and reinstalling battery
Charge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in
reverse order.
Reconnecting the battery
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start / stop button until
the engine shuts off.
Open the driver’s door.
Connect the battery positive lead and
fasten its cover 2.
Connect the battery negative lead.
Reinstall the filter box (
page 420).Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12-volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
Warning!
G
Never charge a battery while still installed in
the vehicle. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
!NEVER invert the terminal connections!!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnect-
ing):
Set the clock (
page 151) (vehi-
cles with COMAND*: see COMAND
operator’s manual).
Resynchronize the side windows
(page 250).
Resynchronize the tilt/sliding
sunroof* (
page 254).
427 Practical hints
Towing the vehicle
Installing towing eye bolt
Towing eye bolt CLK 320/CLK 500
1Cover on right side of front bumper2Cover on right side of rear bumper
To remove cover:
Press mark on cover in direction of ar-
row.
L i f t c o v e r o f f t o r e v e a l t h r e a d e d h o l e f o r
towing eye bolt.
The towing eye bolt is supplied with the
tool kit (located in the compartment under-
neath the trunk floor).
Screw towing eye bolt to its stop and
tighten with lug wrench.
To reinstall cover:
Fit cover and snap into place.
iIf the battery is disconnected or
discharged
the SmartKey will not turn in the
starter switch. For more informa-
tion, see “Battery” (
page 420)
and “Jump starting” (page 423).
the gear selector lever will remain
locked in positionP. For informa-
tion on manually unlocking the
transmission gear selector lever
see (
page 400).
463 Index
Auto-dimming rear view mirrors 178
Automatic central locking
Activating/deactivating
(control system) 158
Automatic climate control 194
Activating 195
Adjusting air distribution 198
Air recirculation mode 201
Deactivating 195
Defrosting 200
Rear window defroster 183
Setting the temperature 197
Automatic headlamp mode 125
Automatic lighting control
Activating 132
Deactivating 132
Automatic locking when driving 110
Automatic shift program 170
Automatic time change
(Daylight Saving Time
(DST) summer/winter) 153Automatic transmission 165
Accelerator position 171
Comfort program mode 170
Emergency operation
(Limp Home Mode) 177
Fluid level 312
Gear ranges 168
Gear selector lever 165
Gear selector lever position 165, 169
Gear shifting malfunctions 177
Kickdown 171
Manual shifting 167
One-touch gearshifting 167
Program mode selector switch 170
Starting the engine 47
Transmission fluid 312
Auxiliary fuse box 432B
Backrest
Folding forward 268
Folding rearward 269
Backup lamp 405, 410
Bulbs 405
Back-up lamps
Bulbs 404
Bar 338
BAS 85, 455
Messages in display 366
Batteries, SmartKey
Check lamp 97, 102
Checking 97, 103
Replacing 402
Batteries, SmartKey with KEYLESS-GO*
Check lamp 97, 102
Checking 97, 103
Replacing 403
Battery discharged
Jump starting 423
465 Index
Central locking
Automatic 110
From inside 110
Switch 110
Switching on/off
(control system) 158
Unlocking from inside 110
Central locking switch 110
Changing
CDs 225
Key setting 158
Charcoal filter 202
Activating 203
Deactivating 203
Charging
Vehicle battery 422
CHECK ENGINE
malfunction indicator lamp 356
Checking
Coolant level 313
Oil level 307, 310
Tire inflate pressure 307
Vehicle lighting 307Child safety 70
Air bags 62
Front passenger front
air bag off indicator lamp 77
Infant and child
restraint systems 67, 70
LATCH child seat anchors 80
OCS 73
Child safety switch see
Blocking of rear window operation
Child seat anchors see
LATCH child seat anchors
Cigarette lighter 277Cleaning 347
Cup holder 351
Gear selector lever 351
Hard plastic trim items 351
Headlamps 178
Headliner 352
Instrument cluster 351
Leather upholstery 352
Light alloy wheels 351
Nubuck leather upholstery
(CLK 55 AMG) 352
Parktronic system* sensor 350
Plastic and rubber parts 352
Seat belts 352
Steering wheel 351
Upholstery 352
Windows 351
Windshield 53
Wiper blades 350
Wood trims 352
Cleaning and care of vehicle 347
Cleaning tires 318
473 Index
Instrument cluster 24, 134, 457
Cleaning 351
Coolant temperature indicator 135
Illumination 134
Lamps in 354–359
Multifunction display 137
Outside temperature indicator 136
Selecting language 150
Instruments and controls see Cockpit
Interior lighting 132
Activating automatic control 132
Deactivating automatic control 132
Delayed switch-off 157
Manual operation 133
Interior rear view mirror
Adjusting 41
Auto-dimming 178
Interior storage compartments 272
Intermittent wipe 53
J
Jack 389
Jump starting 423K
Key, mechanical 397
Key, SmartKey with KEYLESS-GO*
Replacing the batteries 403
Key-dependency memory
Settings 160
KEYLESS-GO* 457
Activating ignition with 36
Closing power
tilt/sliding sunroof* with 250, 253
Closing windows with 250, 253
Factory setting 101
Global locking 101
Global unlocking 101
Important notes 100
Locking the vehicle 103
Messages in display 381
Remote controls 99
Starting the engine 47
Turning off the engine 57
Unlocking with 33
Unlocking, trunk lid 104
Kickdown 171, 457
Kilometers/miles in speedometer 149
Kilopascal 339
Km/h or mph in speedometer 149L
Labels, identification 436
Lamp bulbs, exterior 404
Lamp sensor
Messages in display 383
Lamps, exterior
Front 404
Light sensor 383
Messages in display 382–385
Rear 405
Lamps, indicator and warning
ABS 354
Battery (SmartKey) 96, 102
Brakes 355
Center console 360
CHECK ENGINE 356
Coolant 357, 375
Engine diagnostics 356
ESP 358
Front passenger front
air bag off indicator lamp 66, 360
Fuel reserve 359
Instrument cluster 354–359
476 IndexMenus 138
AUDIO 143
Control system 140, 457
NAV 144
Settings menu 146
Standard display 142
Submenus 139
TEL* 162
Trip computer 160
Vehicle status message memory 145
Messages
Displaying 145
Vehicle status message memory 145
Microphone
Hands-free microphone 29
Miles/kilometers in speedometer
Setting 149
Minispare wheel
(except CLK 55 AMG) 393
Technical data 443Mirrors
Activating exterior rear
view mirror parking position 180
Adjusting 41
Auto-dimming rear view mirrors 178
Exterior rear view mirror 41
Exterior rear
view mirror parking positions 160
Interior rear view mirror 41
Storing exterior rear
view mirror parking position 123
MON (Motor Octane Number) 306, 457
Mph or km/h in speedometer 149
Multicontour seat* 118
Multifunction display 137, 457
Displaying gear range 168
Selecting language 150
Setting date (day) 153
Setting date (month) 153
Setting date (year) 154
Standard display 141Multifunction display messages
ABS 365
BAS 366
Battery 373
Brake fluid 374
Brake pads 374
Check engine 356
Coolant 376
Coolant level 375
Cruise control 367
Display 378
Doors 378
Engine 356
Engine oil 379
ESP 367
Fog lamps, front 382
Fuel cap 356
Fuel reserve tank 381
Gear selector lever 372
High beam headlamps 383
Hood 381
Key 381
Lamp sensor 383
Lamps 383
License plate lamp 383
Low beam 383
481 Index
Reinstalling
Ashtray (Center console) 276
Ashtray (Rear seat) 277
Vehicle battery 422
Remote controls
SmartKey 94
SmartKey with KEYLESS-GO* 99
Remote door unlock
With Tele Aid 286
Removing
Ashtray (Center console) 276
Ashtray (Rear seat) 277
Floormats* 278
Ski sack* 267
Vehicle battery 421
Vehicle tool kit
(CLK 55 AMG only) 390
Vehicle tool kit
(except CLK 55 AMG) 389
Wheel 415
Wiper blades 411Replacing
Backup lamp bulbs 410
Batteries (SmartKey
with KEYLESS-GO*) 403
Batteries (SmartKey) 402
Brake lamp bulbs 410
Bulbs 404
Front lamp bulbs 406
Front turn signal bulbs (Halogen) 407
Fuses 430
High beam bulbs (Halogen) 406
High beam bulbs for
high beam flasher (Bi-Xenon*) 408
License plate lamp bulbs 410
Low beam bulbs (Halogen) 406
Parking lamp bulbs 407, 409
Rear fog lamp bulb 410
Rear lamp bulbs 405, 410
Rear turn signal bulbs 410
Side marker lamp bulbs 409
Standing lamp bulbs 407, 409
Wiper blades 411
Reporting
Safety defects 18Reset button
in the instrument cluster 146, 147
Resetting
All functions (control system) 146
All functions of a submenu 147
Fuel consumption 161
Maintenance service indicator 346
Trip odometer 135
Residual heat utilization 205, 459
Residual ventilation 205
REST
(Residual engine heat utilization) 459
Restraint system see
Infant and child restraint systems 79
Restraint systems 459
Rim 339
Rims 439
Roadside Assistance 12, 283
Information button 284
Tele Aid 280
RON
(Research Octane Number) 306, 459
Roof rack 264
Rubber parts
Cleaning 352
483 Index
Speedometer display mode 149
Temperature (Interior) 187
Temperature (interior) 197
Temperature indicator 149
To last stored speed
("Resume" function)
in cruise control 259
Units
Speedometer 149
Temperature 149
Setting current speed 256
Setting the temperature 187
Settings
Convenience functions 158
Factory, KEYLESS-GO* 101
Factory, SmartKey 96
Individual (SmartKey) 160
Lighting (control system) 154
Menus and submenus 139
Resetting all (control system) 146
Resetting in the submenu 147
Selective 96, 102
Settings menu
Functions in 146
Individual vehicle settings 146
Submenus 147Shift lock 459
Shifting
Gear selector lever 165
Gear selector lever positions 169
Into optimal gear range
(Automatic transmission) 167
Side impact air bags 66
Side marker lamps
Replacing bulbs 404, 405, 409
Side windows
Automatic opening 248
Cleaning 351
Closing 247, 248, 249
Closing with KEYLESS-GO* 250, 253
Closing with SmartKey 249
Opening 247, 248, 249
Opening fully 248
Opening with SmartKey 249
Stopping 249
Synchronizing power windows 250
Sidewall 339
Simultaneous wiping and washing
Windshield wipers 53
Single wipe 53Ski sack* 264
Removing 267
Unfolding and loading 264
Unloading and folding 266
SmartKey 94
Battery check lamp 96, 102
Checking the batteries 97, 103
Factory setting 96
Global locking 96
Global unlocking 96
Locking and unlocking 94
Loss of 98
Message in display 381
Opening and closing the power
tilt/sliding sunroof* with 253
Opening and closing
windows with 249
Positions in starter switch 34
Remote controls 94
Replacing the batteries 402
Restoring to factory setting 97, 102
Selective setting 96, 102
Starting the engine 47
Turning off the engine 56
Unlocking with 32