
274 Battery
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Therefore, we strongly recommend that you have the
battery charge checked frequently, and corrected if
necessary, especially if you use the vehicle less than
approximately 200 miles (300 km) per month,
mostly for short distance trips, or if it is not used for
long periods of time.
Only charge a battery with a battery charger after the
battery has been disconnected from the vehicle’s
electrical circuit.
Always disconnect the battery negative lead first and
connect last.
When removing and connecting the battery, always
make sure that all electrical consumers are off and the
key is in steering lock position 0. The battery must
always be securely installed when the vehicle is in
operation. During removal and installation always
protect the disconnected battery positive (+) terminal
with the cover attached to the battery.
While the engine is running the battery terminal clamps
must not be loosened or detached, otherwise the
generator and other electronic components would be
damaged.Note:
The gear selector lever will remain locked in
position “P” and the electronic key cannot be turned in
the steering lock if the vehicle battery is disconnected
or discharged.
After reconnecting the battery also set the clock in
instrument cluster (see page 87), set date in trip
computer (see page 89), resynchronize the sliding / pop-
up roof (see page 294) and the electronic stability
program (ESP) (see page 224).
Battery recycling
Batteries contain material that can harm the
environment with improper disposal.
Large 12 Volt storage batteries contain lead.
Recycling of batteries is the preferred method of
disposal.
Many states require sellers of batteries to accept old
batteries for recycling.

285 Exterior lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Bulbs for high beam H7 55 W
Open hood.
Remove cover (4). Pull off electrical connector (7).
Unhook and move aside clamping ring. Remove bulb.
Insert new bulb (seating properly in cutouts of bulb
socket), mount clamping ring. Reinstall and push
electrical connector on securely. Reinstall cover (4).
Bulbs for low beam (only Halogen headlamps)
H7 55 W
Open hood.
Push down tab at top end of cover (3) and remove. Pull
off electrical connector (6). Unhook and move aside
clamping ring. Remove bulb.
Insert new bulb (seating properly in cutouts of bulb
socket), mount clamping ring. Reinstall and push
electrical connector on securely. Reinstall cover (3).BiXenon D2S 35 W
(optional; Canada only standard on ML 500)
Parking, standing, side marker and turn signal lamp
115 7 N A ( 3 2 / 3 c p b u l b )
Open hood.
Twist bulb socket (5) 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.
Wa r n i n g !
Because of high voltage in BiXenon 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.

288 Exterior lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Pull off electrical connector (2).
Squeeze tabs (3) together and remove bulb holder.
Push bulb into socket, turn counterclockwise and
remove.
Insert new bulb in socket, push in and twist clockwise.
Reinstall bulb holder.
Reinstall electrical connector (2).
Reinstall taillamp.Additional turn signals on the exterior mirror
The Additional turn signals on the exterior mirror are
equipped with LEDs.
Have the system checked at an authorized
Mercedes-Benz Center if a malfunction occurs.
P82.10-2753-26
![MERCEDES-BENZ ML320 2002 W163 Owners Manual 289 Exterior lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index License plate lamps (C 5 W [tubular] bulb)
Remove both securi MERCEDES-BENZ ML320 2002 W163 Owners Manual 289 Exterior lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index License plate lamps (C 5 W [tubular] bulb)
Remove both securi](/manual-img/4/3367/w960_3367-291.png)
289 Exterior lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index License plate lamps (C 5 W [tubular] bulb)
Remove both securing screws, remove lamp and take
out bulb.High mounted stop lamp (1073 [32 cp bulb])
To replace bulb, squeeze both sides (1, arrows) of cover,
fold forward and remove.
Press tab (2, arrow) on reflector and remove reflector.
Press bulb down, turn counterclockwise and remove.
Insert new bulb in socket, push in and twist clockwise.
Reinstall reflector.
Position tabs of cover in slots (3, arrows) and reinstall
cover until properly seated.
P82.10-2347-26
P82.10-2346-26

291 Exterior lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index 5. (High beams on):
Simultaneously turn adjusting screws (1 and 2 on
page 283 or 284) counterclockwise to adjust
headlamp downward, clockwise upward.
Graduations:
screw 1: 0.50
° pitch,
screw 2: 0.67° pitch.
6. Horizontal headlamp aim (High beams on):
Turn adjusting screw (2) (left headlamp:
counterclockwise to adjust to the left, clockwise to
the right [right headlamp in opposite direction])
until the headlamp (high beam pattern) is centered
about the vertical centerline (1) as shown.
The left and right headlamps must be adjusted
individually.
Graduations: 0.33
° pitch.Note:
If it is not possible to obtain a proper headlamp
adjustment, have the system checked at your authorized
Mercedes-Benz Light Truck Center.

294 Emergency operation of sliding/pop-up roof
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Emergency operation of sliding/pop-up roof
The sliding / pop-up roof can be opened or closed
manually should an electrical malfunction occur.
The sliding / pop-up roof drive is located behind the
cover between the front interior lamps.
1. Open cover by using a flat blade screw driver at top
edge.
2. Obtain crank (supplied with vehicle) and insert in
hexagon drive hole, located at rear end of the open
cover.Note:
Push crank upward while turning it, to disengage the
electric motor.
To slide the roof closed or to raise the roof at the rear:
turn crank clockwise.
To slide the roof open or to lower the roof at the rear:
turn crank counterclockwise.
Synchronizing the sliding / pop-up roof
After manually operating the sliding / pop-up roof, a
timing synchronization is needed for future electrical
operation of the roof. To do so, remove fuse for sliding/
pop-up roof operation, located in fuse box, for one
second and reinstall. Now push and hold switch until
the sliding / pop-up roof is fully raised. Continue to hold
switch for another second.
For notes on fuses, see page 250.
RESETMODEMODE

295 Manual release for fuel filler flap
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Manual release for fuel filler flap
The manual release is located behind the cover in the
left rear compartment trim panel.
In case the central locking system does not release the
fuel filler flap, turn the lock rod (1) clockwise (arrow) to
the end stop and open fuel filler flap.
ML 55 AMG:
First remove the space-saver tire from its holder, see
page 264.Replacing wiper blades
For safety reasons, remove key from steering lock before
replacing the wiper blade, otherwise the motor can
suddenly turn on and cause injury.
Notes:
Do not open engine hood with wiper arm folded forward.
Do not allow the wiper arm to contact the windshield
glass without a wiper blade inserted. The glass may be
scratched or broken.
Make certain that the wiper blade is properly installed.
An improperly installed wiper blade may cause
windshield damage.
The wiper with air spoiler should be mounted on the
driver’s side.
1
P80.20-2296-26

324 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Central locking system ................................................... 26
Automatic central locking ......................................... 33
Locking and unlocking .............................................. 27
Mechanical keys .......................................................... 29
Panic button ................................................................. 28
Remote control ............................................................ 26
Unlocking the liftgate ................................................. 27
Vehicle keys ................................................................. 24
Changing wheels ...........................................................267
Inflating the space-saver tire .................................. 271
Charge indicator lamp ................................................... 245
CHECK ENGINE
malfunction indicator lamp ..................................... 240
Check regularly and before a long trip ......................238
Checking engine oil level
Via engine oil level indicator .................................... 96
Via oil dipstick ...........................................................255
Child restraint .............................................. 39, 48, 55, 68
Child seat mounts
See Infant and child restraint systems .................... 72
Child seat mounts – “LATCH” type ............................... 72
Cleaning and care of the vehicle .................................298
Climate control
Special settings ..........................................................114
Clock, adjusting ............................................................... 87
Compartment under front passenger seat ................. 134Consumer information ................................................. 320
Control and operation of radio transmitters .............. 164
Coolant level
Adding ........................................................................ 257
Checking .................................................................... 256
Low engine coolant level warning ......................... 246
Coolant temperature gauge ............................................87
Coolants ........................................................................... 318
Anticorrosion/antifreeze quantity ......................... 318
Low engine coolant level warning ......................... 246
Cover blind, cargo area ................................................. 155
Cruise control ................................................................. 214
Cup holder
Instrument panel ...................................................... 134
Rear center console .................................................. 136
Cup holder in front seat armrest ................................. 135
DDeep water
Driving instructions .................................................201
Display illumination ........................................................86
Doors ..................................................................................30
Drinking and driving ..................................................... 192
Drive sensibly - save fuel .............................................. 192