oil level MERCEDES-BENZ CLK320 CABRIOLET 2003 C208 User Guide

221 What you should know at the gas station
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index •Engine oil
Engine oil level check, see page 108 and page 252.
Fill quantity between upper and lower dipstick
marking level: 2.1 US qt (2.0 l).
Recommended engine oils, see Approved Service
Products sheet.
• Coolant
For normal replenishing, use water (potable water
quality).
For further information (e.g. anticorrosion/
antifreeze), see page 316.
• Spark plugs
Approved spark plugs, see page 314.
• Tire pressure
For tire pressure, refer to tire pressure label inside
the fuel filler flap. See page 268 for further details.• Air conditioner
R-134a refrigerant and special PAG lubricant, see
page 316.
•Bulbs
High and low beams: H7 (55 W),
low beam: Xenon (optional)
fog lamps: H1 (55 W),
turn signal lamps,
front 1156 NA (26.9/5 W/32/4 cp),
parking and standing lamps, front: H 6W (6 W),
side marker lamps, front: 5 W/4 cp,
turn signal lamps, rear: 21 W/24 cp,
stop, tail, parking and side marker lamps: 21/4 W,
tail and parking lamp: 5 W/4 cp,
rear fog lamp, driver’s side: 21 W/32 cp,
backup lamps: 21 W/32 cp,
license plate lamps: 5 W/4 cp.

222 Check regularly and before a long trip
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Check regularly and before a long trip 1Engine oil level
See “Engine oil level, checking” on page 108 and
page 252.
2Coolant level
See “Coolant level” on page 253.
3Brake fluid
See “Brake fluid” on page 318.
4Windshield washer system
Headlamp cleaning system
For refilling reservoir see page 255.
Opening hood, see page 250.
Ve h i c l e l i g h t i n g : Check function and cleanliness. For
replacement of light bulbs, see “Exterior lamps” on
page 277.
Exterior lamp switch, see page 110.

223
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and indicator lamps in
the instrument cluster .............224
On-board diagnostic system Check
engine malfunction indicator
lamp ..............................................224
Brake warning lamp ..................225
Supplemental restraint system
(SRS) indicator lamp ..................226
Fuel reserve and fuel cap
placement warning ....................226
Electronic stability program (ESP)
— warning lamp ..........................227
BAS/ESP malfunction indicator
lamp ..............................................227
ABS malfunction indicator
lamp ..............................................227
Telescoping steering column –
indicator lamp .............................228
Seat belt warning lamp .............228Malfunction and indicator lamps in
the center console .................... 228
AIRBAG OFF indicator lamp .... 228
Roll bar warning lamp .............. 229
Malfunction and warning messages
in the multifunction display ... 230
DISPLAY DEFECTIVE (engine
control unit) ................................ 231
DISPLAY DEFECTIVE (several
systems) ...................................... 231
BATTERY/ALTERNATOR .......... 232
ABS-SYSTEM .............................. 233
BRAKE ASSIST ........................... 233
BRAKE LINING WEAR .............. 234
BRAKE FLUID ............................ 234
PARKING BRAKE ....................... 235
ENGINE FAN ............................... 235
COOLANT (coolant level) ......... 236
COOLANT TEMP. (coolant
temperature) ............................... 237LIGHTING SYSTEM ....................238
LIGHT SENSOR ...........................239
STEER. WHEEL ADJUST. ...........239
ENGINE OIL LEVEL ...................240
ELEC. STABIL. PROG. (Electronic
stability program) ...................... 241
REMOVE KEY ............................. 241
WASHER FLUID .........................242
TELE AID .....................................243

240 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
ENGINE OIL LEVEL
1 The engine oil level must be checked immediately. See Engine oil
level indicator on page 108
2 There is no oil in the engine. There is a danger of engine damage.3 There is a risk of damaging the engine or catalytic converter. The
engine oil level must be checked immediately. See Engine oil level
indicator on page 108.
4 The engine oil level has dropped to a critical level.
Check the engine oil level immediately. See Engine oil level
indicator on page 108 and check the engine for visible leakage
(loss of oil).
5 The measuring system is malfunctioning.
6 It may be that there is water in the engine oil. Have the engine oil
checked.
When the “ENGINE OIL LEVEL – CHECK LEVEL”
message appears while the engine is running and at
operating temperature, the engine oil level has dropped
to approximately the minimum mark on the dipstick.
When this occurs, the warning will first come on
intermittently and then stay on if the oil level drops
further.
If no oil leaks are noted, continue to drive to the nearest
service station where the engine oil should be topped to
the “full” mark on the dipstick with an approved oil.
The engine oil level warnings should not be ignored.
Extended driving with the symbol displayed could
result in serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Line 1 Line 2
ENGINE OIL LEVEL CHECK LEVEL!
1
ENGINE OIL LEVEL STOP, ENGINE OFF!
2
ENGINE OIL LEVEL REDUCE OIL LEVEL!
3
ENGINE OIL LEVEL VISIT WORKSHOP!
4
ENGINE OIL SENSOR VISIT WORKSHOP!
5
ENGINE OIL VISIT WORKSHOP!
6

245
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit .....................................246
Shelf below rear window ..............246
Stowing things in the vehicle ......246
Luggage cover .................................246
Fuses ................................................248
Hood .................................................250
Checking engine oil level .............252
Automatic transmission fluid
level .............................................253
Coolant level ...................................253
Adding coolant ...........................254
Windshield washer / headlamp
cleaning system .........................255
Windshield and headlamp washer
fluid mixing ratio .......................255Spare wheel, vehicle tools, storage
compartment ............................. 256
Vehicle jack .................................... 257
Wheels ............................................ 258
Tire replacement ....................... 258
Rotating wheels ......................... 259
Spare wheel .................................... 260
Spare wheel bolts .......................... 260
Spare wheel bolts ...................... 260
Spare wheel .................................... 260
Changing wheels ........................... 263
Tire inflation pressure ................. 268
Battery ............................................. 270
Jump starting ..................................271
Towing the vehicle ........................ 273
Exterior lamps ............................... 277
Headlamp assembly .................. 278
Taillamp assemblies .................. 280Adjusting headlamp aim ...............282
Changing batteries in the electronic
key ...............................................285
Synchronizing remote
control .........................................287
Raising soft top manually .............288
Antenna ...........................................295
Manual release for fuel filler
flap ..............................................296
Replacing wiper blade insert .......296

252 Engine compartment
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Checking engine oil level (CLK 320 shown)
1Oil dipstick
2Oil filler cap
To check the engine oil level, park vehicle on level
ground, with engine at normal operational temperature.
Check engine oil level approximately 5 minutes after
stopping the engine, allowing for the oil to return to the
oil pan.Wipe oil dipstick clean prior to checking the engine oil
level. Fully insert dipstick in tube, and remove after
three seconds to obtain accurate reading.
Oil level must be between the
lower (min) and upper (max) mark of
the dipstick.
Fill quantity between upper and lower dipstick marking
level is approximately 2.0 US qt (2.0 l).
Do not overfill the engine.
Excessive oil must be drained
or siphoned. It could cause damage to engine and
catalytic converter not covered by the Mercedes-Benz
Limited Warranty.
See malfunction and warning messages on page 230 if
an engine oil level display appears on the multifunction
display when the engine is running.
Note:
See page 108 for engine oil level indicator.
Mercedes-Benz
Mercedes-Benz
2
1

320 Fuels, coolants, lubricants etc.
Te ch n i c a 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
additives, carbon deposits can build up especially on the
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 coolant solution must be used year-round to provide
the necessary corrosion protection and increase boil-
over protection. 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 applicable if MB 325.0 anticorrosion/
antifreeze solution or other Mercedes-Benz approved
products of equal specification (see Factory Approved
Service Products pamphlet) are used to renew the
coolant concentration or bring it back up to the proper
level.

326 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
CCapacities
Fuels, coolants, lubricants etc. ............................... 316
Cargo tie-down rings ..................................................... 152
Catalytic converter......................................................... 176
CD changer
See Audio system ...................................................... 136
Cellular telephone ......................................................... 153
Center console .................................................................. 18
Central locking switch .................................................... 33
Central locking system ................................................... 25
Automatic central locking ......................................... 34
Choosing global or selective mode........................... 28
Electronic key .............................................................. 23
Locking and unlocking............................................... 27
Mechanical keys ........................................................... 30
Remote control ............................................................ 25
Changing wheels ........................................................... 263
CHECK ENGINE malfunction indicator lamp............ 224
Check regularly and before a long trip ...................... 222
Checking engine oil level
Via engine oil level indicator .................................. 108
Via oil dipstick........................................................... 252Child restraint .............................................. 53, 58, 59, 69
Child seat
See Infant and child restraint systems .................... 69
Cleaning and care of the vehicle ................................ 300
Clock, setting .................................................................. 102
COMAND, radio and telephone.................................... 174
Combination switch ....................................................... 113
Consumer information ................................................. 322
Control and operation of radio transmitters .............. 174
COOLANT (coolant level) - malfunction and warning
messages ................................................................... 236
Coolant level
Adding coolant.......................................................... 254
Checking .................................................................... 253
COOLANT TEMP. (coolant temperature) - malfunction
and warning messages ............................................ 237
Coolant temperature gauge ............................................ 82
Coolants .......................................................................... 320
Anticorrosion/antifreeze quantity ........................ 320
Cruise control ................................................................. 210
Cup holder
Center console, front ................................................ 149

327 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
DDaytime running lamps ................................................. 111
Standing water
Driving instructions ................................................. 209
DISPLAY DEFECTIVE (engine control unit) -
malfunction and warning messages ...................... 231
DISPLAY DEFECTIVE (several systems) - malfunction
and warning messages ............................................ 231
Display illumination ........................................................ 81
Doors .................................................................................. 31
Drinking and driving .................................................... 201
Drive sensibly - save fuel .............................................. 201
Driving instructions ....................................................... 201
Driving off .......................................................................203EELEC. STABIL. PROG. - malfunction and warning
messages .................................................................... 241
Electronic key ................................................................... 23
Changing batteries ................................................... 285
Synchronizing remote control ................................ 287
Electronic stability program (ESP)
Control switch ........................................................... 218
Malfunction and warning messages ...................... 241Malfunction indicator lamp .................................... 227
Synchronizing............................................................ 217
Warning lamp ........................................................... 227
Emergency call
See Tele Aid................................................................ 179
Emergency tensioning device (ETD) ............................. 60
Emergency trunk lid release button ............................. 38
Emergency unlocking in case of accident.................... 34
Emission control ............................................................ 177
Emission control label ................................................... 310
Engine compartment .................................................... 250
ENGINE FAN - malfunction and
warning messages ........................................................ 235
Engine malfunction
CHECK ENGINE malfunction indicator lamp ...... 224
Engine oil additives ....................................................... 318
Engine oil consumption ................................................ 109
Engine oil level
Checking............................................................ 108, 252
Warning ..................................................................... 240
ENGINE OIL LEVEL - malfunction and warning
messages ................................................................... 240
Engine oil level indicator .............................................. 108
ENGINE OIL LEVEL NOT WHEN ENGINE ON
(measuring) - multifunction indicator ................... 109
Engine oils....................................................................... 318

330 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
LLamps, exterior
Fog lamps ....................................................................110
Headlamp, adjusting ................................................282
Headlamps ..................... 110, 238, 239, 278, 282, 303
Low and high beam .......................................... 113, 279
Parking lamps ...................................................110, 279
Replacing bulbs ......................................................... 277
Side marker lamp, front ........................................... 281
Standing lamps ..................................................110, 279
Taillamp assemblies ......................................... 110, 280
Turn signal lamps ............................................. 113, 279
Layout of poly-V-belt drive ............................................ 310
LIGHT SENSOR - malfunction and
warning messages ......................................................... 239
Lighter ............................................................................. 151
LIGHTING SYSTEM - malfunction and
warning messages ......................................................... 238
Limp home mode (Automatic transmission) ............. 199
Locking and unlocking ................................................... 27
Low beams
See Exterior lamps .................................................... 277
Low engine coolant level warning............................... 236
Luggage cover .................................................................246
MMaintenance ................................................................... 175
Malfunction and indicator lamps in the
instrument cluster ....................................................... 224
Malfunction and warning messages .......................... 230
ABS-SYSTEM ............................................................. 233
BATTERY/ALTERNATOR ......................................... 232
BRAKE ASSIST ......................................................... 233
BRAKE FLUID ........................................................... 234
BRAKE LINING WEAR ............................................ 234
COOLANT (coolant level) ........................................ 236
COOLANT TEMP. (coolant temperature) .............. 237
DISPLAY DEFECTIVE (engine control unit) .........231
DISPLAY DEFECTIVE (several systems) ................231
ELEC. STABIL. PROG. ............................................... 241
ENGINE FAN ............................................................. 235
ENGINE OIL LEVEL ................................................. 240
LIGHT SENSOR ......................................................... 239
LIGHTING SYSTEM .................................................. 238
PARKING BRAKE ..................................................... 235
REMOVE KEY ............................................................ 241
STEER. WHEEL ADJUST. ......................................... 239
TELE AID ................................................................... 243
WASHER FLUID ........................................................ 242
Malfunction/warning message memory .................... 100