2003 MERCEDES-BENZ CLK55AMG COUPE coolant level

289 Practical hints
What to do if …?
Display
Possible cause
Suggested solution
F
Key
do not forget key
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no key in the
starter switch.
Message is only a reminder.

Insert key in the starter switch.

Take the SmartKey with KEY-
LESS-GO* with you when leaving the
vehicle.
B
Coolant
Check level
The coolant level is too low.

Add coolant (
page 256).

If you have to add coolant frequently,
have the cooling system checked by
an authorized Mercedes-Benz Center.
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You can be seriously burned.
!Do not ignore the low engine coolant
level warning. Extended driving with
the message and symbol displayed
may cause serious engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Do not drive without sufficient amount
of coolant in the cooling system. The
engine will overheat, causing major en-
gine damage.

355 Technical data
Fuels, coolants, lubricants, etc.
Damage or malfunctions resulting from
poor fuel quality or from blending specific
fuel additives are not covered by the
Mercedes-Benz Limited Warranty.Coolants
The engine coolant is a mixture of water
and anticorrosion / antifreeze, which pro-
vides:

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 cool-
ant in the pressurized cooling system is
reached at approximately 266°F (130°C).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%
anticorrosion/antifreeze (freeze protec-
tion to approx. - 49°F [-45°C]), the engine
temperature will increase due to the lower
heat transfer capability of the solution.
Therefore, 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 that the mixture is in ac-
cordance 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, con-
sult your authorized Mercedes-Benz
Center.
The coolant solution must be used year
round to provide the necessary corrosion
protection and increase boil-over protec-
tion. You should have it replaced every 15
years or 150 000 miles (250 000 km),
whichever comes first.
Coolant system design and coolant used
stipulate the replacement interval. The
above replacement interval is only applica-
ble if MB 325.0 anticorrosion/antifreeze
solution 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.

370 IndexBulbs, replacing 316
Additional turn signals 317
Backup lamps 317
Brake lamps 317
Fog lamps 317
Front lamps 317
High beam 317
High mounted brake lamp 317
License plate lamps 317, 322
Low beam 317
Parking lamps 317, 319, 321
Rear fog lamp 317
Rear fog lamps 322
Side marker lamps 317, 321
Standing lamps 317, 319, 321
Tail lamp assemblies 317, 322
Turn signal lamps 317
Button
Audio system 168C
CAC (Customer Assistance Center) 362
Calling up
Distronic* settings 121
Range (distance to empty) 137
Service indicator 267
CAN system 362
Capacities
Fuels, coolants, lubricants, etc. 351
Cargo tie-down rings 218
Casette mode
Playing cassettes 174
Cassette player
Operating 121
Catalytic converter 248
CD changer* 178
CD mode 178
CD player
Operating 120
Center console 25
AIRBAG OFF indicator lamp 282
Lower part 26
Upper part 25
Centigrade
Setting temperature units 126Central locking
Automatic 95
From inside 95
Switch 95
Switching on/off (control system) 133
Unlocking from inside 95
Central locking switch 95
Changing
Batteries (SmartKey with KEY-
LESS-GO*) 312
Batteries (SmartKey) 312
Key setting 133
Changing CDs 178
Charcoal filter 161
Activating 161
Deactivating 161
Charging
Vehicle battery 330
CHECK ENGINE malfunction indicator
lamp 280
Checking
Coolant level 256
Oil level 252, 254
Tire inflate pressure 252
Vehicle lighting 252

372 IndexCombination switch 107
High beam flasher 47, 108
Turn signals 47
Windshield wipers 47
Consumer information 358
Control and operation of radio transmitters
248
Control system 114, 362
AUDIO menu 119
Convenience submenu 133
Display digital speedometer 119
Distronic* menu 121
Functions 115, 118
Instrument cluster submenu 126, 128
Lighting submenu 129
Malfunction memory menu 122
Menus 117, 118, 364
Multifunction display 114
Multifunction steering wheel 115
NAVI menu 121
Selecting radio system 120
Settings menu 123
Standard display menu 119
Submenus 116, 118
TEL* menu 138
Trip computer menu 136Vehicle submenu 132
Convenience submenu 133
Activating easy-entry/exit feature 133
Setting key dependency 135
Setting parking position for exterior
rear view mirror 135
Coolant 256, 355
Adding 257
Anticorrosion/antifreeze quantity 355
Capacities 351
Checking level 256
Messages in display 289, 290
Temperature 250
Temperature display 112
Warning lamp 281, 290
Coolant level
Checking 256
Cruise control 193, 362
Canceling 194
Driving downhill 194
Driving uphill 194
Fine adjustment 195
Lever 200
Saving current speed 194
Setting speeds 195
Cruise control lever 193Cup holder
Cleaning 273
Closing 220, 221
In rear seat armrest 220
In the dashboard 220
Opening 220, 221
Customer Assistance Center (CAC) 362
D
Daytime running lamp mode 106
Setting 129, 130
Deactivating
Air conditioning (cooling) 163
Air recirculation mode 160
Alarm 80
Anti-theft alarm system 80
Automatic climate control 155
Central locking (control system) 133
Cruise control 194
Defrost 159
Distance warning function* 205
Distronic* 203
Engine with KEYLESS-GO* 52
Engine with the key 51
ESP 78
Exterior lamps 106
Hazard warning flasher 108

381 Index
Mirrors
Adjusting 38
Automatic antiglare for rear view mirror
149
Exterior rear view mirror 38
Exterior rear view mirror parking posi-
tion 150
Exterior rear view mirror parking posi-
tions 135
Inside rear view mirror 38
Storing exterior mirror parking position
103
MON 251
MON (Motor Octane Number) 364
Mph or km/h in speedometer 126
Multicontour seat* 100
Multifunction display 114, 364
Selecting language 127
Standard display 118
Multifunction display messages
ABS 284
BAS 285
Battery 303
Brake fluid 287
Brake pads 286
Check engine 280Coolant 290
Coolant level 289
Display 304
Distronic* 292
Doors 292
Engine 280
ESP 293
Fuel reserve tank 296
Hood 296
Key 296
Lamps 296–299
Parking brake 299
Selector lever 292
SmartKey with KEYLESS-GO* 288
Steering gear oil level 300
Tele Aid 301
Telephone* 301
Trunk 301
Washer fluid 301
Multifunction steering wheel 24, 115, 364
Buttons 115N
Navigation system
Operating 121
See separate COMAND* operating in-
structions
Night security illumination 107
O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 66
Fastening the seat belt 40
Infant and child restraint systems 66
LATCH child seat mounts 71
Seat belts 40, 60
Odometer, main 23
Oil
Adding 255
Checking level 254
Consumption 254
Filler neck 255
Viscosity 363
Oil level
Checking 252