Page 336 of 421
333 Engine compartment
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Pull handle (2) to its stop out of radiator grill and open
hood (do not pull up on the handle).
Note:
To avoid damage to the windshield wipers or hood, open
the hood only with the wipers in the parked position. To c l o s e :
Lower the hood and let it drop into lock from a height of
approximately 1 ft. (30 cm), assisting with hands placed
flat on edges of hood (3).
To avoid hood damage, please make sure that hood is
fully closed. If not, repeat closing procedure. Do not
push down on hood to attempt to fully close it.
P88.40-0391-26
2
P88.40-0390-26
3
3
Page 339 of 421

336 Engine compartment
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Coolant level
1Coolant expansion tank
To check the coolant level, the vehicle must be parked
on level ground and the engine stopped.
Check coolant level only when coolant is cold.
The coolant level should reach the black top part of the
reservoir.
See page 398 for antifreeze / anticorrosion mixture.Adding coolant
If coolant has to be added, a 50/50 mixture of water and
MB anticorrosion / antifreeze should be added.
P82.35-2001-26
1
Wa r n i n g !
• In order to avoid possibly serious burns:
Use extreme caution when opening the hood if
there are any signs of steam or coolant leaking
from the cooling system, or if the coolant
temperature gauge indicates that the coolant is
overheated.• Do not remove pressure cap on coolant
reservoir if engine temperature is above 194°F
(90°C). Allow engine to cool down before
removing cap. The coolant reservoir contains
hot fluid and is under pressure.• Using a rag, slowly open cap approximately 1/2
turn to relieve excess pressure. If opened
immediately, scalding hot fluid and steam will
be blown out under pressure.• Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which may
burn if it comes into contact with hot engine
parts.
Page 361 of 421

358 Exterior lamps
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Bulbs for high and low beam
H7 (55 W)
Open hood.
Press the clip together (arrow) and remove headlamp
cover (1 or 2).
Pull electrical connector off.
Unclip the retainer spring and take out the bulb.
Insert the new bulb so that the base locates in the
recess on the holder.
Clip in retainer springs and plug the connector onto the
bulb.
Align headlamp cover (1 or 2) and click into place.
Xenon (optional)
Bulb for low beamTurn signal lamp
(2357 NA [28.5 / 8.3 W] (Yellow))
Open hood.
Press the clip together (arrow) and remove headlamp
cover (2).
Twist bulb socket (7) counterclockwise and pull out.
Push bulb into socket, turn counterclockwise and
remove.
Insert new bulb in socket, push in and twist clockwise.
Reinstall bulb socket.
Align headlamp cover (2) and click into place.
Wa r n i n g !
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the lamp
and its components. We recommend that you have
such work done by a qualified technician.
Page 362 of 421
359 Exterior lamps
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Front fog lamp
H1 (55W)
Open hood.
Press the clip together (arrow) and remove headlamp
cover (1).
Pull electrical connector off.
Unclip the retainer spring and take out the bulb.
Insert the new bulb so that the base locates in the
recess on the holder.
Clip in retainer spring and plug the connector onto the
bulb.
Align headlamp cover (1) and click into place.Parking and standing lamp
W 5W
Open hood.
Press the clip together (arrow) and remove headlamp
cover (1).
Twist bulb socket (4) counterclockwise and pull out.
Push bulb into socket, turn counterclockwise and
remove.
Insert new bulb in socket, push in and twist clockwise.
Reinstall bulb socket.
Align headlamp cover (1) and click into place.
Page 373 of 421
370 Replacing wiper blades
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Replacing wiper blades
To prevent damage to the hood or the wipers, the wiper
a rms sh ou ld only be fold ed forward wh ile in the position
shown above.•Turn electronic key in starter switch to position 1.
•Turn combination switch to position I, see page 160.
•With wiper arms in position shown above, turn
electronic key in starter switch to position 0.
For safety reasons, remove electronic key from
starter switch before replacing a wiper blade,
otherwise the motor can suddenly turn on and cause
injury.
Notes:
Do not open engine hood with wiper arms folded
forward.
Do not allow the wiper arms to contact the windshield
glass without a wiper blade inserted. The glass may be
scratched or broken.
Make certain that the wiper blades are properly
installed. An improperly installed wiper blade may
cause windshield damage.
Page 410 of 421

407 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Exterior rear view mirrors
Electrically folding .................................................... 109
Parking position ........................................................ 108
FFirst aid kit .....................................................................328
Flexible service system (FSS) ...................................... 147
Footwell lighting ............................................................ 189
Front airbags .................................................................... 94
Front center console storage
compartment ventilation ......................................... 175
Front seat adjustment ..................................................... 67
Fuel
Gasoline additives ....................................................398
Premium unleaded gasoline ................. 291, 395, 397
Fuel cap placement warning
See CHECK ENGINE
malfunction indicator lamp ................................296
Fuel filler flap, manual release ...................................368
Fuel requirements .........................................................397
Fuel reserve warning ....................................................299
Fuels, coolants, lubricants etc. - capacities ...............394
Fuses, electrical .............................................................329
GGarage door opener ...................................................... 206
Gasoline
Additives .................................................................... 398
Fuel requirements ................................................... 397
Premium unleaded .................................................. 397
General notes on the
central locking system ............................................... 33
Glove box ......................................................................... 194HHazard warning flasher switch ................................... 163
Head restraints, front seats
Removal and installation ...........................................72
Head restraints, rear seat ............................................... 80
Power head restraints ................................................. 81
Headlamp cleaning system ........................................... 159
Headlamp mode (HEADLAMPS) .................................. 157
Headlights ....................................................................... 156
Heated seats ......................................................................75
Hood .................................................................................331
HOOD -
malfunction and warning messages ..................... 320