2006 MERCEDES-BENZ CLK COUPE cooling

386 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause/consequence
Possible solution
•
Coolant
Stop, engine off
The poly-V-belt could be broken.

Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine. Notify an authorized Mercedes-Benz
Center.
If it is intact:

Do not continue to drive the vehicle with this
message displayed. Doing so could result in
serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.

Drive immediately to the nearest authorized
Mercedes-Benz Center.
Coolant
Visit workshop
The cooling fan for the coolant is mal-
functioning.

Observe the coolant temperature display.

Have the fan replaced as soon as possible.

453 Technical data
Fuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Cooling system
CLK 350
CLK 500
approx. 10.5 US qt (10.0 l)
approx. 12.8 US qt (12.0 l)
MB 325.0 Anticorrosion/Antifreeze
Agent
Fuel tank
including a reserve of
16.35 US gal (62.0 l)
2.11 US gal (8.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg.of96RON/86MON)
Air conditioning system
R-134a refrigerant and special PAG lu-
bricant oil (never R-12)
Windshield washer and
headlamp cleaning system*
6.4 US qt (6.0 l)
MB Windshield Washer Concentrate
1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing point or MB Windshield Washer Concentrate “MB SummerFit”
and commercially available premixed windshield washer solvent / antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 459).

457 Technical data
Fuels, 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.

467 Index
A
ABS 25, 87, 461
Malfunction indicator lamp 360
Messages in display 372
Accelerator position, automatic
transmission 174
Accessory weight 342
Accident 56
Active head restraints 73
Resetting 408
Air bags 63
Children 74
Front passenger
front air bag off indicator lamp 81
Front side impact air bags 68
Front, Driver 67
Front, Passenger 67
Occupant Classification System
(OCS) 77
Rear side impact air bags* 68
Safety guidelines 66
Window curtain 68Air conditioning refrigerant 454
Air conditioning system see
Climate control system
Air conditioning, Cooling 194, 206
Air distribution 190, 201
Air pressure see Tires, Inflation pressure
Air recirculation mode 192, 203
Air vents 195, 208
Air volume 190, 201
Alarm system see Anti-theft systems
Alignment bolt
(vehicle tool kit) 398, 423, 461
Anticorrosion/antifreeze 457, 458
Antiglare, Rear view mirror 180, 181
Antilock Brake System see ABS
Anti-theft systems 93
Anti-theft alarm system 93
Immobilizer 93
Tow-away alarm* 95
Aquaplaning see Hydroplaning
Armrest 271, 272
Storage box 269
Ashtrays 274, 275Aspect ratio 342
ATF 313
AUDIO menu 149
CD player CD, MP3-CD 150
Radio station 149
Radio station (satellite*) 149
Audio system 209
Button and soft key operation 212
CD changer* 227
CD operation 225
Emergency calls "911" 244
Operating and display elements 210
Operating audio system 209
Operating safety 209
Radio operation 216
Sound system* 213
Switching on/off 212
Telephone* operation 209, 231
Auto-dimming, Rear view mirror 181
Automatic central locking,
Control system 120, 163
Automatic climate control see
Climate control system
Automatic headlamp mode see Headlamps
Automatic lighting control,
Interior lighting 138

469 Index
C
CAC 461
California retail buyers and lessees,
Important notice for 11
Call priority (Tele Aid) 285
Can holder see Cup holder
CAN system 461
Capacities and
recommended fuel/lubricants 452
Cargo area see Trunk
Cargo tie-down rings 268
Carpets, cleaning 357
Catalytic converter 303
CD changer* 225
CD player 225
Control system 150
Center console 27
Lower part 28
Upper part 27
Central locking
Automatic 120, 163
Locking/unlocking from inside 121
Central locking switch 121
Certification label 442
Charcoal filter 204Children in the vehicle 74
Air bags 74
Blocking rear
side window operation 85
Front passenger front
air bag off indicator lamp 81
Infant and
child restraint systems 69, 74, 82
LATCH-type child seat anchors 83
LATCH-type
child seat anchors design A 84
LATCH-type
child seat anchors design B 84
Occupant Classification System
(OCS) 77
Cigarette lighter 276
Climate control see
Climate control systemClimate control system
Air conditioning refrigerant 454
Air conditioning, Cooling 194, 206
Air distribution 190, 201
Air recirculation mode 192, 203
Air vents 195, 208
Air volume 190, 191, 201
Charcoal filter 204
Control panel,
Automatic climate control 197
Control panel,
Climate control 187
Deactivating/Reactivating 189, 199
Defogging 202
Defrosting 202
Defrosting, rear window 185
Front defroster 191
MAXCOOL 202
Residual engine heat
and ventilation* (REST*) 207
REST* 465
Temperature 190, 200
Clock 25, 142, 157, 158
Setting time 157, 158
Cockpit 22, 461

477 Index
Lock buttons
Door handle (KEYLESS-GO*) 60, 107
Trunk lid (KEYLESS-GO*) 109
Lock knob 463
Loss of keys 102, 110
Loss of Service and
Warranty Information Booklet 441
Low beam headlamps
Indicator lamp 25
Messages in display 393
Replacing bulbs (Bi-Xenon*) 412
Replacing bulbs (Halogen) 412, 414
Switching on 25, 52
Lubricants 452M
Maintenance 12, 348
Calling up service indicator 349
Clearing service indicator 349
FSS (Canada vehicles) 348
Maintenance System
(U.S. vehicles) 348
Resetting service indicator 350
Service indicator 348
Service term exceeded 349
Maintenance system
(U.S. vehicles) 348, 463
Manual headlamp mode see Headlamps
MAXCOOL maximum cooling 202
Maximum load rating, Tires 343
Maximum loaded vehicle weight,
Tire inflation pressure 343
Maximum tire inflation pressure 343
Mechanical key 404
Memory function see Seats, Power
Menus see Control system menus
Microphone, Hands-free 29
Minispare wheel see Spare wheelMirrors
Adjusting 43
Antiglare position 180
Auto-dimming 181
Exterior rear view mirror,
Parking position 130, 164, 182
Exterior rear view mirrors 43
Interior rear view mirror 43
MOE see MOExtended
MOE tires see MOExtended system*
MOExtended463
MOExtended system* 425
MON 306, 463
Motor Octane Number see MON
Multicontour seat* see
Seats, Multicontour*
Multifunction display 144, 464
Changing settings see
Control system menus and
Control system submenus
Displaying gear range 175
Selecting language 155
Symbol messages 382–397
Text messages 372–380