2001 MERCEDES-BENZ CLK CABRIOLET coolant

321 Fuels, coolants, lubricants etc.
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Gasoline additives
A major concern among engine manufacturers is carbon
build up caused by gasoline. Mercedes-Benz
recommends the use of only quality gasoline containing
additives that prevent the build up of carbon deposits.
After an extended period of using fuels without such
a d d i t i ve s , c a r b o n d e po si t s c a n b u il d u p e s pe c ia l ly o n t h e
intake valves and in the combustion area, leading to
engine performance problems such as:
•warm-up hesitation,
•unstable idle,
•knocking/pinging,
•misfire,
•power loss.
Do not blend other specific fuel additives with fuel.
They only result in unnecessary cost, and may be
harmful to the engine operation.
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 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 corrosion 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 approximately 266°F (130°C).
The cool ant sol ution must be used yea r round to provide
the necessary corrosion protection and increase in the
boil-over protection. You should have it replaced every
3years.
To provide the important corrosion protection, the
solution must be at least 45% anticorrosion/antifreeze
(equals a freeze protection to approx. - 22°F [-30°C]). If
you use a solution that is more than 55% anticorrosion/
antifreeze (freeze protection to approx. - 49°F [-45°C]),

322 Fuels, coolants, lubricants etc.
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
the engine temperature will increase due to the lower
h eat transfer ca pa bil ity of th e sol ution. Therefore, d o 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 cooling system checked for signs of leakage).
The water in the cooling system must meet minimum
requirements, which are usually satisfied by normal
drinking water. If your are not sure about the water
quality, consult your authorized Mercedes-Benz Center.
Anticorrosion/antifreeze
Your vehicle contains a number of aluminum parts. The
use of aluminum components in motor vehicle engines
necessitates that anticorrosion/antifreeze coolant used
in such e ng ines b e specif ica lly formul ated to protec t th e
aluminum parts. (Failure to use such anticorrosion/
antifreeze coolant will result in a significantly
shortened service life.)
Therefore the following product is strongly
recommended for use in your vehicle: Mercedes-Benz
Anticorrosion/antifreeze agent.Before the start of the winter season (or once a year in
the hot southern regions), you should have the
anticorrosion/antifreeze concentration checked. The
coolant is also regularly checked each time you bring
your vehicle to your authorized Mercedes-Benz Center
for service.
Anticorrosion/antifreeze quantity
Model Approx. freeze protection
-35°F
(-37°C)-49°F (
-45°C)
CLK 320 4.8 US qt
(4.5 l)5.3 US qt
(5.0 l)
CLK 430 5.9 US qt
(5.6 l)6.5 US qt
(6.1 l)

326 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Defrosting ................................................................... 123
Display and controls ................................................. 122
Dust filter ................................................................... 126
Economy ..................................................................... 123
Rear window defroster ............................................. 124
Residual engine heat utilization (REST) ............... 125
Special settings ......................................................... 123
Automatic transmission ............................................... 195
Emergency operation ...............................................203
Fluid level ...................................................................257
Program mode selector switch ...............................202
Selector lever position .............................................. 198
Transmission selector lever, manually unlocking 279
BBabySmart
TM airbag deactivation system ..................... 64
Self-test ......................................................................... 64
Backrest, front seat .......................................................... 54
BAS (Brake assist system) ............................................ 216
Malfunction indicator lamp ..................................... 231
Battery .............................................................................272
Battery recycling .......................................................273
BATTERY/ALTERNATOR - malfunction
and warning messages ............................................236Block heater .................................................................... 212
BRAKE ASSIST - malfunction
and warning messages ............................................ 237
Brake assist system (BAS) ............................................ 216
Malfunction indicator lamp .....................................231
Brake fluid ..................................................... 229, 317, 319
Capacity ...................................................................... 317
BRAKE FLUID - malfunction
and warning messages ............................................ 238
BRAKE LINING WEAR - malfunction
and warning messages ............................................ 238
Brake pad wear .............................................................. 238
Brake warning lamp ..................................................... 229
Brake fluid low ......................................................... 229
Brakes ................................................... 204, 206, 216, 220
CCapacities
Fuels, coolants, lubricants etc. ............................... 317
Cargo tie-down rings ..................................................... 156
Catalytic converter ......................................................... 180
Cellular telephone .......................................................... 157
Center console .................................................................. 20
Central locking switch .................................................... 36

327 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Central locking system ................................................... 28
Automatic central locking ......................................... 37
Choosing global or selective mode ........................... 31
Electronic main key .................................................... 25
Electronic reserve key ................................................ 26
Locking and unlocking .............................................. 30
Mechanical keys .......................................................... 33
Remote control ............................................................ 28
Changing wheels ...........................................................266
CHECK ENGINE malfunction indicator lamp ............228
Check regularly and before a long trip ......................226
Checking engine oil level
Via engine oil level indicator ...................................112
Via oil dipstick ...........................................................256
Child restraint .............................................. 58, 63, 64, 74
Cleaning and care of the vehicle .................................302
Clock, setting .................................................................. 106
COMAND, radio and telephone ................................... 178
Combination switch .......................................................117
Consumer information ..................................................323
Control and operation of radio transmitters ............. 178
COOLANT (coolant level) -
malfunction and warning messages ......................240
Coolant level
Adding coolant ..........................................................258
Checking ....................................................................257COOLANT TEMP. (coolant temperature) -
malfunction and warning messages ......................241
Coolant temperature gauge ............................................ 86
Coolants ...........................................................................321
Anticorrosion/antifreeze quantity .........................321
Cruise control ................................................................. 214
Cup holder
Center console, front ................................................ 153
DDaytime running lamps ................................................ 115
Deep water
Driving instructions ................................................. 212
DISPLAY DEFECTIVE (engine control unit) -
malfunction and warning messages ..................... 235
DISPLAY DEFECTIVE (several systems) -
malfunction and warning messages ..................... 235
Display illumination ........................................................ 85
Doors .................................................................................. 34
Drinking and driving .................................................... 205
Drive sensibly - save fuel ............................................. 205
Driving instructions ..................................................... 205
Driving off ...................................................................... 207

329 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Replacing bulbs .........................................................280
Side marker lamp, front ...........................................284
Standing lamps ..................................................114, 282
Taillamp assemblies .................................................283
Turn signal lamp ............................................... 117, 282
FFirst aid kit .....................................................................250
Flexible service system (FSS) ...................................... 109
Fuel
Gasoline additives .................................................... 321
Premium unleaded gasoline .................. 180, 318, 320
Fuel cap placement warning ........................................230
Fuel filler flap
Manual release ..........................................................298
Fuel requirements .........................................................320
Fuel reserve warning ....................................................230
Fuels, coolants, lubricants etc. - capacities ............... 317
Fuses, electrical .............................................................252
GGarage door opener ....................................................... 158
Gasoline
Additives .....................................................................321
Fuel requirements ................................................... 320
Premium unleaded .................................................. 320
General notes on the central locking system .............. 27
Glove box ......................................................................... 151HHazard warning flasher switch ................................... 119
Head restraints
Front .............................................................................. 51
Rear ...............................................................................52
Removal ........................................................................ 51
Headlamp cleaning system ........................................... 116
Headlights ....................................................................... 114
Heated seats ......................................................................56
Hood ................................................................................ 254

330 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
IIdentification labels ........................................................311
Illuminated vanity mirrors ........................................... 150
Indicator lamps in the instrument cluster ................... 84
Individual settings ......................................................... 106
Infant and child restraint systems ................................ 74
Information call
See Tele Aid ............................................................... 182
Instrument cluster ........................................................... 82
Activating display ....................................................... 85
Indicator lamps ........................................................... 84
Instrument lamps ............................................................ 85
Instruments and controls ............................................... 18
Interior
General notes ............................................................. 151
Interior lighting ............................................................. 149JJump starting .................................................................. 274KKeys, vehicle ..................................................................... 24
LLamps, exterior
Fog lamps ................................................................... 114
Headlamp, adjusting ................................................ 285
Headlamps ...................... 114, 242, 243, 281, 285, 305
Low and high beam ........................................... 117, 282
Parking lamps ................................................... 114, 282
Replacing bulbs ........................................................ 280
Side marker lamp, front .......................................... 284
Standing lamps ................................................. 114, 282
Taillamp assemblies ........................................ 114, 283
Turn signal lamps ............................................. 117, 282
Layout of poly-V-belt drive ............................................ 312
LIGHT SENSOR - malfunction
and warning messages ............................................ 243
Lighter ............................................................................. 155
LIGHTING SYSTEM - malfunction
and warning messages ............................................ 242
Limp home mode (Automatic transmission) ............ 203
Locking and unlocking .................................................... 30
Low engine coolant level warning .............................. 240
Luggage cover ................................................................ 250

331 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
MMaintenance ................................................................... 179
Malfunction and indicator lamps
in the instrument cluster .........................................228
Malfunction and warning messages ...........................234
ABS-SYSTEM .............................................................237
BATTERY/ALTERNATOR ..........................................236
BRAKE ASSIST ..........................................................237
BRAKE FLUID ............................................................238
BRAKE LINING WEAR .............................................238
COOLANT (coolant level) .........................................240
COOLANT TEMP. (coolant temperature) ............... 241
DISPLAY DEFECTIVE (engine control unit) .........235
DISPLAY DEFECTIVE (several systems) ...............235
ELEC. STABIL. PROG. ...............................................245
ENGINE FAN ..............................................................239
ENGINE OIL LEVEL ..................................................244
LIGHT SENSOR .........................................................243
LIGHTING SYSTEM ...................................................242
PARKING BRAKE ......................................................239
REMOVE KEY ............................................................245
STEER. WHEEL ADJUST. .........................................243
TELE AID ....................................................................247
WASHER FLUID ........................................................246Malfunction message memory ....................................104
Manual operation of soft top ........................................ 291
Mechanical keys ............................................................... 33
Memory
Recalling ................................................................ 49, 79
Storing ........................................................................... 48
Mirror, exterior, adjusting ..............................................78
Mirror, exterior, rear view ..............................................78
Mirror, inside, rear view ................................................. 77
Multicontour seat ............................................................. 55
Multifunction display ...................................................... 88
Engine oil level indicator ...........................................92
FSS (Flexible service system) ................................... 92
Setting the audio volume .........................................108
Trip and main odometer ............................................ 92
Vehicle speed ............................................................... 92
Multifunction steering wheel .........................................88
NNavigation system - Multifunction display ................ 101
Night security illumination .......................................... 115