Page 435 of 506
434 Practical hintsTowing 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.
Lift cover off to reveal threaded hole for
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 427)
and “Jump starting” (page 430).
the gear selector lever will remain
locked in positionP. For informa-
tion on manually unlocking the
transmission gear selector lever,
see (
page 400).
Page 451 of 506
450 Technical dataElectrical systemModel
CLK 320
CLK 500
CLK 55 AMG
Generator (alternator)
14 V/120 A
14 V/150 A
14 V/150 A
Starter motor
14 V/1.4 KW
14 V/1.7 KW
14 V/1.7 KW
Battery
12 V/100 Ah
12 V/100 Ah
12 V/100 Ah
Spark plugs
Bosch F8 DPP 332
NGK PFR 5R-11
Bosch F8 DPP 332
NGK PFR 5R-11
NGK ILFR 6A
Electrode gap
0.039 in (1.00 mm)
0.039 in (1.00 mm)
0.031 in (0.8 mm)
Tightening torque
18.5 - 22 lb-ft (25 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)
Page 467 of 506

466 Technical termsTele Aid System
(T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.TIN
(T
ire I
dentification N
umber)
(
page 338)
Tire load rating
(page 338)
Tire ply composition and material used
(page 338)
Tire speed rating
(page 338)
Traction
(page 338)
Tread
(page 338)
Treadwear indicators
(page 338)
Uniform Tire Quality Grading Standards
(page 338)Vehicle capacity weight
(
page 338)
Vehicle maximum load on the tire
(page 338)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Wind screen
Screen for deflecting wind from the ve-
hicle interior when the soft top is
lowered.
Page 470 of 506

469 Index
Automatic climate control 190
Activating 191
Adjusting air distribution 194
Air recirculation mode 195
Deactivating 191
Defrosting 195
Rear window defroster 179
Setting the temperature 193
Automatic headlamp mode 123
Automatic lighting control
Activating 128
Deactivating 129
Automatic locking when driving 110
Automatic shift program 169Automatic transmission 163
Accelerator position 170
Comfort program mode 169
Emergency operation
(Limp Home Mode) 175
Fluid level 309
Gear ranges 166
Gear selector lever 163
Gear selector lever position 163, 167
Gear shifting malfunctions 175
Kickdown 170
Manual shifting 165
One-touch gearshifting 165
Program mode selector switch 169
Starting the engine 47
Transmission fluid 309
Auxiliary fuse box 438B
Backup lamps 415, 420
Bulbs 415
Bar 336
BAS 85, 461
Messages in display 367
Batteries, SmartKey
Check lamp 97, 103
Checking 97, 103
Replacing 412
Batteries, SmartKey with KEYLESS-GO*
Check lamp 97, 103
Checking 97, 103
Replacing 413
Battery discharged
Jump starting 430
Battery, vehicle 311, 427
Charging 428
Disconnecting 428
Messages in display 374
Reconnecting 429
Reinstalling 428
Removing 428
Bead 336
Bi-Xenon headlamps* 461
Block heater* 341
Page 472 of 506

471 Index
Central locking
Automatic 110
From inside 110
Locking from inside 110
Switch 110
Switching on/off
(control system) 155
Unlocking from inside 110
Central locking switch 110
Certification label 442
Changing
CDs 218
Key setting 156
Charcoal filter 197
Activating 197
Deactivating 197
Charging
Vehicle battery 428
CHECK ENGINE
malfunction indicator lamp 356
Checking
Coolant level 310
Oil level 304, 307
Tire inflate pressure 304
Vehicle lighting 304Child safety 72
Air bags 62
Front passenger front
air bag off indicator lamp 79
Infant and child
restraint systems 67, 72
LATCH child seat anchors 80
OCS 75
Child safety switch see
Blocking of rear window operation
Child seat anchors see
LATCH child seat anchors
Cigarette lighter 274Cleaning 345
Cup holder 351
Gear selector lever 351
Hard plastic trim items 351
Headlamps 176
Headliner 351
Instrument cluster 351
Leather upholstery 352
Light alloy wheels 350
Nubuck leather upholstery
(CLK 55 AMG) 352
Parktronic system* sensor 349
Plastic and rubber parts 352
Seat belts 351
Soft top 347
Steering wheel 351
Upholstery 352
Windows 350
Windshield 53
Wiper blades 349
Wood trims 352
Cleaning and care of vehicle 345
Cleaning tires 315
Climate control 180
Clock 25, 148
Page 475 of 506

474 Index
Headlamps 56
Immobilizer 89
Interior lighting
delayed switch-off 154
Rear window defroster 179
Residual heat 199
Seat ventilation* 118
Tow-away alarm 92
Deep water see Standing water
Defogging
Windshield 185, 194
Defrosting 185, 195
Delayed switch-off
Interior lighting 154
Department of Transportation see DOT
Dialing
A number (telephone) 161
Difficulties
While driving see
Problems while driving
With starting 48
Digital speedometer 138
Direction of rotation (tires) 316
Discharged battery
Jump starting 430Disconnecting
Vehicle battery 428
Display
Selecting 146, 147
Display elements
Audio system 202
Displays
Digital speedometer 139
Maintenance service indicator 342
Messages 308, 363
Selecting 146
Showing vehicle
status message memory 141
Distance to empty (range)
Calling up 158
Door control panel 30
Door entry lamps 129
Door handle 30
Door unlock
With Tele Aid 283
Doors
Message in display 379
Opening from inside vehicle 105
Opening from outside 96, 101
DOT 336Downhill driving
Cruise control 257
Downshifting
Automatic transmission 165
Drinking and driving 291
Driving
General instructions 43, 291
Hydroplaning 295
In winter 297
Problems 54
Safety systems 84
Through standing water 298
Traveling abroad 299
Driving instructions 291
Driving off 294
Driving safety systems
ABS 84
BAS 85
ESP 86
Driving systems 255
Cruise control
CLK 320 / CLK 55 AMG 255
Driving safety systems 84
Parktronic system* 260
Page 481 of 506

480 IndexLamps, indicator and warning
ABS 354
Battery (SmartKey) 96, 102
Brakes 355
Center console 361
CHECK ENGINE 356
Coolant 357, 376
Engine diagnostics 356
ESP 358
Front passenger front
air bag off indicator lamp 66, 361
Fuel reserve 359
Instrument cluster 354–360
Maintenance service indicator 342
Parktronic system*
warning indicators 262
Roll bar 359
Seat belts 359
SRS 61, 360
Turn signals 25
Language
Multifunction display 146
Setting 146
LATCH child seat anchors 80
Folding back 81Layout of poly-V-belt drive 443
Leather upholstery
Cleaning 352
Lever
For cruise control 255
License plate lamps
Messages in display 384
Replacing bulbs 415, 420
Light alloy wheels
Cleaning 350
Technical data 446
Light sensor 384
Lighter see Cigarette lighterLighting 122
Automatic headlamp mode 123
Combination switch 126
Daytime running lamp mode 124
Door entry lamps 129
Exterior lamp switch 122
Front fog lamps 125
High beam flasher 126
High beams 126
Instrument cluster illumination 130
Interior 128
Locator lighting 124
Low beam 122
Manual headlamp mode 123
Night security illumination 124
Parking lamps 122
Rear fog lamp 125
Settings (control system) 151
Limiting the gear range 166
Limp Home Mode 175
Loading 264
Instructions 268
Ski sack* 264
Loading terminology 335
Loading the vehicle 316
Page 483 of 506

482 IndexMenus 134
AUDIO 139
Control system 463
In control system 136, 137
NAV 141
Settings menu 142
Standard display 138
Submenus 135
TEL* 160
Trip computer 158
Vehicle status message memory 141
Microphone
Hands-free microphone 29
Miles/kilometers in speedometer
Setting 145
Minispare wheel 394
Mounting 423
Removing 394
Storing 395
Technical data 449
Wheel bolts 396Mirrors
Activating exterior rear
view mirror parking position 177
Adjusting 41
Auto-dimming for
rear view mirror 176
Exterior rear view mirror 41
Exterior rear view
mirror parking positions 157
Interior rear view mirror 41
Storing exterior rear view
mirror parking position 121
MON 303
MON (Motor Octane Number) 463
Mph or km/h in speedometer 145
Multicontour seat* 116
Multifunction display 133, 463
Displaying gear range 166
Selecting language 146
Setting date (day) 150
Setting date (month) 149
Setting date (year) 151
Standard display 137Multifunction display messages
ABS 366
BAS 367
Battery 374
Brake fluid 375
Brake pads 375
Check engine 356
Coolant 377
Coolant level 376
Cruise control 368
Display 379
Doors 379
Engine 356
Engine oil 380
ESP 368
Fog lamps, front 383
Fuel cap 356
Fuel reserve tank 382
High beam headlamps 384
Hood 382
Key 382
Lamp sensor 384
Lamps 384
License plate lamp 384
Low beam 384
Parking brake 375