2005 MERCEDES-BENZ CLK320 COUPE cooling

452 Technical dataFuels, coolants, lubricants, etc.Coolants
The engine coolant is a mixture of water
and anticorrosion / antifreeze, which
provides:

Corrosion protection


Freeze protection


Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and corro-
sion protection.
If the antifreeze mixture is effective
to -22°F (-30°C), the boiling point of the
coolant in the pressurized cooling system
is reached at approx. 266°F (130°C).The coolant solution must be used
year-round to provide the necessary corro-
sion protection and increase boil-over pro-
tection. Refer to Maintenance Booklet for
replacement interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable if
MB 325.0 anticorrosion/antifreeze solu-
tion or other Mercedes-Benz approved
products of equal specification (see Facto-
ry Approved Service Products pamphlet)
are used to renew the coolant concentra-
tion or bring it back up to the proper level.To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approx. -22°F [-30°C]). If you
use a solution that is more than 55% anti-
corrosion/antifreeze (freeze protection to
approx. -49°F [-45°C]), the engine temper-
ature will increase due to the lower heat
transfer capability of the solution. There-
fore, do not use more than this amount of
anticorrosion/antifreeze.
If the coolant level is low, water and MB
Anticorrosion /Antifreeze should be used
to bring it up to the proper level (have cool-
ing system checked for signs of leakage).
Please make sure the mixture is in accor-
dance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality,
consult an authorized Mercedes-Benz
Center.

461 Index
A
ABS 25, 84, 455
Malfunction indicator lamp 354
Messages in display 365
Accelerator position,
automatic transmission 171
Accessory weight 338
Accident
In case of 54
Activating
Air conditioning (cooling) 192, 204
Air recirculation mode 190, 201
Anti-theft alarm system 90
Automatic climate control 195
Central locking (control system) 158
Charcoal filter 203
Climate control 185
Climate control system 187
Defrosting 189
Automatic climate control 200
Easy-entry/exit feature 159
Electric air pump 417
ESP 88Exterior headlamps 50
Exterior lamps 125
Exterior rear view
mirror parking position 180
Front and rear fog lamp 128
Hazard warning flasher 131
Headlamps 50
High beams 129
Ignition 34
Ignition with KEYLESS-GO* 36
Immobilizer 56, 89
Rear window defroster 183
Residual heat 205
Seat heating* 119
Seat ventilation* 120
Tow-away alarm 91, 92
Windshield wipers 52
Adding
Coolant 313
Engine oil 312
Additional turn signals 404
Adjustable air vents, rear
passenger compartment 193, 206Adjusting 37
Air distribution 188, 198
Air volume 199
Backrest tilt 38
Exterior rear view mirror 41
Head restraint height 38
Head restraint tilt 39
Instrument cluster illumination 134
Interior rear view mirror 41
Mirrors 41
Multicontour seat* 118
Seat cushion depth 118
Seat cushion tilt 38
Seat fore and aft adjustment 38
Seat height 38
Seats 37
Steering column in/out 41
Steering column up/down 41
Steering wheel 40
Aids for changing fuses 430

462 IndexAir bags 61
Children 62
Front 65
Passenger 65
Safety guidelines 64
Side impact 66
Window curtain 66
Air conditioning (cooling) 191
Turning off 192, 204
Turning on 192, 204
Air conditioning refrigerant 450
Air distribution
Adjusting 188, 198
Air pressure 338
Air pressure see Tire inflation pressure
Air pump, electric
Turning on 417
Air recirculation mode 190, 201
Activating 190, 201
Deactivating 191, 202
Air vents, rear passenger compartment
Adjustable 193, 206
Air volume
Adjusting 199Alarm
Audible 83, 91, 92
Canceling 91, 92
Visual 90
Alarm system
Anti-theft 90
Alignment bolt (vehicle tool kit) 415, 455
Anticorrosion/antifreeze 453
Antiglare
Auto-dimming 178
Antilock brake system (ABS) 455
Anti-theft alarm system
Arming 90
Canceling alarm 91, 92
Disarming 91
Anti-theft systems 89
Anti-theft alarm system 90
Immobilizer 89
Tow-away alarm 91
Aquaplaning see Hydroplaning
Armrest
Front 273
Rear 274
Storage compartments 273Ashtray (Center console) 276
Opening 276
Reinstalling 276
Removing 276
Ashtray (Rear seat) 276
Opening 277
Reinstalling 277
Removing 277
Aspect ratio 338
At the gas station 305
ATF (automatic transmission fluid) 312
AUDIO menu 143
Operate CD player 144
Selecting radio station 143
Selecting satellite radio* station 143
Audio system 207
Audio and telephone, operation 207
Button and soft key operation 210
CD operation 225
Operating and display elements 208
Operating safety 207
Operation 210
Radio operation 215
Switching off 211
Switching on 210
Telephone* operation 232

467 Index
Convenience submenu 158
Activating
easy-entry/exit feature 159
Setting key-dependency 160
Setting parking position for
exterior rear view mirror 160
Coolant 313, 452
Adding 313
Anticorrosion/antifreeze
quantity 452
Capacities 447
Checking level 313
Messages in display 375
Temperature 304
Temperature indicator 135
Warning lamp 357, 376
Coolant level
Checking 313
Cornering fog lamps* 130
Driving forward 130
Driving rearward 131Cruise control 255, 456
Canceling 257
Driving downhill 257
Driving uphill 257
Fine adjustment 259
Messages in display 367
Setting current speed 256
Setting to last stored speed
("Resume" function) 259
Cruise control lever 255
Cup holder
Cleaning 351
Closing 275
In rear seat armrest 275
In the dashboard 275
Opening 275
Curb weight 338
Customer Assistance Center (CAC) 455D
Date (day)
Setting 153
Date (month)
Setting 153
Date (year)
Setting 154
Daytime running lamp mode 126
Setting 155
Deactivating
Air conditioning (cooling) 192, 204
Air recirculation mode 191, 202
Alarm 91
Anti-theft alarm system 91
Automatic climate control 195
Central locking (control system) 158
Charcoal filter 203
Climate control 185
Climate control system 187
Defrost 200
Defrosting 189
Engine with KEYLESS-GO* 57
Engine with the SmartKey 56
ESP 87
Exterior lamps 125
Hazard warning flasher 131

475 Index
Low beam headlamps
Messages in display 383
Replacing bulbs (Bi-Xenon*) 404
Replacing bulbs (Halogen) 404, 406
Lowering
Vehicle 418
Lubricants
Technical data 447M
Main dimensions 445
Maintenance 12, 344
Maintenance service 344
Basic service (Service A) 344
Calling up the
maintenance service indicator 345
Extended service (Service B) 344
Overdue 345
Types 344
When due 344
Maintenance service indicator 344
Calling up 345
Clearing 345
Resetting 346
Maintenance service system 344
Maintenance system 457
Malfunction
Vehicle status message memory 362
Manual headlamp mode 125Manual operations
Fuel filler flap 399
Interior lighting control 133
Locking the vehicle 398
Power tilt/sliding sunroof* 401
Unlocking gear selector lever 400
Unlocking the driver’s door 397
Manual shift program 175
MAXCOOL maximum cooling 200
Maximum inflation pressure 339
Maximum load rating 339
Maximum loaded vehicle weight 339
Mechanical key 397
Memory function 121, 457
Recalling
positions from memory 122
Storing exterior rear view
mirror parking positions 123
Storing key-dependent settings 122