Page 455 of 481

454 Technical data
Fuels, coolants, lubricants, etc.
Anticorrosion/antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum compo-
nents in motor vehicle engines
necessitates that anticorrosion/antifreeze
coolant used in such engines be specifical-
ly formulated to protect the aluminum parts. (Failure to use such anticorro-
sion/antifreeze coolant will result in a sig-
nificantly shortened service life.)
Therefore, the following product is strongly
recommended for use in your vehicle:
Mercedes-Benz 325.0 Anticorrosion/Anti-
freeze agent.Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to an authorized Mercedes-Benz
Center for service.
Anticorrosion/antifreeze quantity
ModelApprox. freeze protection
–35°F (–37°C)–49°F (–45°C)
CLK 3503.9 US qt (3.7 l)4.3 US qt (4.1 l)
CLK 5504.9 US qt (4.6 l)5.3 US qt (5.1 l)
Page 461 of 481

460 Index
Control system menus 144
AUDIO 147
NAV* 149
Settings 151
Settings, Submenus 151
Standard display 146
Submenus 143
TEL* 165
Trip computer 163
Vehicle status message memory 149
Control system submenus 143, 145, 153
Convenience 162
Instrument cluster 154
Lighting 158
Time/Date 156
Vehicle 161
Coolant 310, 453
Adding 310
Anticorrosion/antifreeze
mixing ratio and quantity 453
Capacities 449
Checking coolant level 310
Messages in display 380–382
Temperature 302
Temperature indicator 139
Warning lamp 361Corner-illuminating front fog lamps* 133
Replacing bulbs 407
Cruise control 253
Canceling 255
Cruise control lever 253
Current speed 254
Fine adjustment 256
Higher speed 256
Last stored speed
("Resume" function) 256
Slower speed 256
Cup holder 271
Curb weight 337D
Date 156
Date, Setting 157, 158
Daytime running lamp mode 130
Setting 158
Deep water see Standing water
Defogging
Windshield 190, 200
Defrosting, Front 189, 200
Defrosting, Rear 183
Delayed shut-off
Exterior lamps 160
Interior lighting 161
Department of Transportation see DOT
Difficulties
With starting 52
Digital speedometer 146
Dimensions, Vehicle 447
Direction of rotation (tires) 316
Displays
Digital speedometer 146
Maintenance service indicator 343
Messages in display 368
Multifunction display 141
Outside temperature 140
Symbol messages 378–393
Page 463 of 481

462 Index
Emergency tensioning device see ETD
Emergency, In case of
Battery, Jump starting 425
First aid kit 394
Flat tire, Changing 415
Fuses 431
Hazard warning flasher 135
Roadside Assistance 12, 282
Towing the vehicle 427
Emission control 302
Emission control information label 439
Emission control vacuum line
routing diagram label 439
Emission system warranties 10
Engine
Belt layout 440
Block heater (Canada only) 342
Break-in recommendations 292
Cleaning 348
Compartment 306
Malfunction indicator lamp 27, 359
Maximum engine speed 441
Message in display 380
Number 439
Starting 50
Starting difficulties 52Starting with KEYLESS-GO* 51
Starting with SmartKey 51
Technical data 441
Turning off 60
Turning off with KEYLESS-GO* 61
Turning off with SmartKey 61
Engine coolant see Coolant
Engine oil 308, 450
Adding 309, 450
Additives 450
Changing 309, 450
Checking level 305, 308
Consumption 308
Filler cap 309
Filler neck 309
Engine oil level 305
ESP
®91
Messages in display 370–371
Warning lamp 362
ETD 78
Safety guidelines 68
Exterior rear view mirrors 45, 180
Exterior view 22F
Filler cap, Engine oil 309
Filler neck, Engine oil 309
First aid kit 394
Flat tire 415
Jacking up the vehicle 416
Lowering the vehicle 419
Minispare wheel 397
Mounting the spare wheel 416
Preparing the vehicle 415
Flexible Service System
see FSS (Canada vehicles)
Floormats* 275
Fluids
Brake fluid 305, 450
Engine coolant 305
Engine oil 305, 450
Windshield washer and headlamp
cleaning* system 305, 449
Fog lamps 132, 407
Messages in display 387
Replacing bulbs 407, 408, 411
Front air bags 69
Front lamps see Headlamps
Page 468 of 481

467 Index
Lock buttons
Door handle (KEYLESS-GO*) 62, 105
Trunk lid (KEYLESS-GO*) 106
Loss of keys 107
Loss of Service and
Warranty Information Booklet 437
Low beam headlamps
Indicator lamp 27
Messages in display 388
Replacing bulbs (Bi-Xenon*) 407
Replacing bulbs (Halogen) 407, 409
Switching on 27, 55
Lubricants 448M
Maintenance 12, 343
Calling up service indicator 345
Clearing service indicator 344
FSS (Canada vehicles) 343
Maintenance System
(U.S. vehicles) 343
Resetting service indicator 345
Service indicator 343
Service term exceeded 344
Maintenance system (U.S. vehicles) 343
Manual headlamp mode see Headlamps
MAXCOOL maximum cooling 201
Maximum load rating, Tires 338
Maximum loaded vehicle weight,
Tire inflation pressure 338
Maximum tire inflation pressure 338
Mechanical key 399
Memory function see Seats, Power
Menus see Control system menus
Microphone, Hands-free 31
Minispare wheel see Spare wheelMirrors
Adjusting 45
Antiglare position 179
Auto-dimming 180
Exterior rear view mirrors 45
Interior rear view mirror 45
Mobile phone see Telephone*
MOE tires* see MOExtended system*
MOE* see MOExtended system*
MOExtended system* 420
MOExtended tires* 442
MON 304
Motor Octane Number see MON
MP3 224
Multicontour seat*
see Seats, Multicontour*
Multifunction display 141
Changing settings
see Control system menus and
Control system submenus
Selecting language 154
Symbol messages 378–393
Text messages 370–376
Page 470 of 481

469 Index
OCS 70
Self-test 74
Odometer 27
Oil level see Engine oil, checking level
One-touch gearshifting
Gear selector lever 175
Steering wheel
gearshift control* 177
Operating safety 207
Operating the vehicle
outside the USA or Canada 13
Ornamental moldings, Cleaning 349
Outside temperature see Displays
Overdue maintenance service 344
Overhead control panel 31P
Paintwork code 438
Paintwork, Cleaning 347
Panic alarm 87
Parcel net
Front passenger footwell 269
Parking 59, 296
Over combustible materials 59, 296
Parking assist*
see Parktronic system* (Canada only)
Parking brake 53, 59
Message in display 379
Warning sounds 54
Parking lamps 128
Messages in display 388
Replacing bulbs 407, 410, 411
Parktronic system* (Canada only) 257
Cleaning system sensors 350
Malfunction 260
Range of the sensors 258
Switching on/off 260
Warning indicators 259
Warning sounds 259, 260
Parts service 436PASS AIR BAG OFF indicator lamp
see Front passenger front air bag off
indicator lamp
Passenger compartment 300
Electrical outlet 275
Interior lighting 136
Interior rear view mirror 45
Main fuse box 432
Parcel net in
front passenger footwell 269
Storage bags, rear side
of the front seats 269
Passenger safety see Occupant safety
Pedals 293
Phone see Telephone
Plastic parts, cleaning 352
Poly-V-belt drive
Layout 440
Positions (Memory function)
see Seats, Power
Power assistance 294
Power seat see Seats, Power
Page 472 of 481

471 Index
Recovery services,
Stolen vehicle (Tele Aid) 285
Refrigerant, Air conditioning 450
Refueling 303
Regular checks 305
Remote control
SmartKey 98, 101
SmartKey with KEYLESS-GO* 101
Remote door unlock (Tele Aid) 284
Removing
Ski sack* (Canada only) 264
Replacing bulbs 406
Additional turn signals 407
Backup lamps 407, 411
Brake lamps 407
Corner-illuminating
front fog lamp* 407
Fog lamps 407, 411
Headlamp bulbs 409
Headlamps 407
High beam flasher (Bi-Xenon*) 407
High beam flasher (Halogen) 407
High beam headlamps
(Bi-Xenon*) 407
High beam headlamps
(Halogen) 407, 409High mounted brake lamp 407
License plate lamps 407, 412
Low beam headlamps
(Bi-Xenon*) 407
Low beam headlamps
(Halogen) 407, 409
Parking lamps 407, 410, 411
Side marker lamps 407
Standing lamps 407, 410, 411
Tail lamps 407, 411
Turn signal lamps 407, 411
Turn signal lamps (Bi-Xenon*) 411
Turn signal lamps (Halogen) 410
Reporting safety defects 18
Research Octane Number see RON
Reset button, In instrument
cluster 27, 138, 151, 152
Residual heat and ventilation* see REST*
REST* 205
Restraint system
see Children in the vehicle
Restraint system see SRS
Reverse gear position,
Automatic transmission 168, 170
Rims 338, 442
Roadside Assistance 12, 282RON 304
Roof rack 261
Rubber parts, cleaning 352
Run Flat Indicator (Canada only) 324
Page 473 of 481

472 Index
S
Safety
Driving safety systems 88
Occupant 64
Reporting defects 18
Safety belts see Seat belts
Satellite radio* 218
Seat belts 75
Automatic comfort-fit feature 78
Children in the vehicle 80
Cleaning 353
ETD 78
Fastening 47
Force limiter 78
Proper use of 49, 76
Safety guidelines 68
Telltale 27
Seating capacity 317
Seats, Multicontour* 123
Backrest contour 123
Backrest side bolsters 123
Cushion depth 123Seats, Power 39, 120
Active head restraints 79
Adjustment 40
Easy entry/exit feature 44
Heating* 124
Memory function 126
Ventilation* 125
Seats, Rear bench seat 264
Securing cargo 266
Selector lever see Gear selector lever
Self-test
OCS 74
Tele Aid 279
Service and Warranty Booklet
Loss of 437
Service and warranty information 10
Service life, Tires 314
Service see Maintenance
Service System see
Maintenance service system
(U.S. vehicles)
or FSS (Canada vehicles)
Service, Parts 436Settings
Control system menus 144
Control system submenus 143
Date 157, 158
Factory, KEYLESS-GO* 104
Factory, SmartKey 100
Global, KEYLESS-GO* 104
Global, SmartKey 100
Individual vehicle 151
Memory function 126
Menus and submenus 144
Resetting all, Control system 151
Selective, KEYLESS-GO* 105
Selective, SmartKey 100
Time 156
Shelf below rear window, Cleaning 353
Shift program mode,
Automatic transmission 174
Shifting
Gear selector lever 50
Shifting,
Automatic transmission 54, 168
Side impact air bags, Front 70
Side impact air bags, Rear* 70
Page 474 of 481

473 Index
Side marker lamps
Cleaning lenses 350
Messages in display 389
Replacing bulbs 407
Side windows see Power windows
Sidewall 338
Ski sack* (Canada only) 262
Removing 264
Unfolding and loading 262
Unloading and folding 263
SmartKey see Key, SmartKey
SmartKey with KEYLESS-GO*
see KEYLESS-GO*
Snow chains 342
Snow tires 341
Sound system* 211
Spare fuses 394, 431
Spare parts service see Parts service
Spare wheel 397
Bolts 394, 398
Mounting 416
Sizes 445
Speedometer 27, 154
SRS 64, 76
Indicator lamp 27, 65, 365
Message in display 391Standard display, Selecting display 155
Standing lamps 128, 410, 411
Replacing bulbs 407
Standing water, Driving through 300
Starter switch 25, 36
Positions 36
Starting difficulties, Engine 52
Starting, Engine 50
Status line, Selecting display 155
Steering column 43
Steering gear oil
Message in display 392
Steering wheel 43
Buttons 28
Cleaning 353
Lock 52
Steering wheel gearshift control
one-touch gearshifting*
Automatic transmission 177
Stolen Vehicle Recovery services 285
Storage box 268Storage compartments 268
Armrest, Front 270
Armrest, Rear 271
Cup holder 271
Glove box 268
Parcel net 269
Storage bags 269
Storage box 268
Storing
Tires 315
Submenus see Control system submenus
Sun visors 181
Sunroof* see Power tilt/sliding sunroof*
Sunshade* (Canada only) 182
Supplemental Restraint System see SRS
Symbols used
in this operator’s manual 15