Mercedes-Benz ML320. Service manual - part 111

271

Practical hints

Replacing bulbs

7 Tabs

왘

Squeeze tabs 7 together and remove 
bulb holder.

왘

Gently push bulb into socket, turn 
counterclockwise and remove.

왘

Insert new bulb in socket, push in and 
turn clockwise.

왘

Reinstall bulb holder. You should hear 
it engage.

왘

Insert the tail lamp in the body, lower 
edge first. Make sure it engages.

왘

Retighten screws with washers on 
them.

License plate lamp

1 License plate lamp
2 Screws

왘

Switch off the lights.

왘

Loosen both screws 2 and remove 
lamp.

왘

Replace the tubular lamp and reinstall 
lamp.

왘

Retighten the screws.

High mounted brake lamp

1 Cover
2 Tab

왘

Switch off the lights.

왘

Squeeze both sides of cover 1, fold it 
forward and remove.

왘

Press tab 2 on reflector and remove 
reflector.

왘

Gently push bulb into socket, turn 
counterclockwise and remove.

왘

Insert new bulb in socket, push in and 
turn clockwise.

컄컄

272

Practical hints

Replacing bulbs

왘

Insert reflector from the left so that it 
engages on the right.

왘

Position tabs of cover in slots and rein-
stall cover until properly seated.

Adjusting headlamp aim

V Vertical centerline

H Headlamp mounting high, measured 

from the center

Correct headlamp adjustment is extremely 
important. To check and readjust a head-
lamp, follow the steps described:

왘

Park the vehicle on a level surface 
25 feet (7.6 m) from a vertical test 
screen or wall.

왘

Switch the headlamps on 
(

컄

page 110).

If the beam does not show a beam pattern 
as indicated in the figure left, then follow 
the steps below:

왘

Open hood (

컄

page 217).

2 Headlamp vertical adjustment screw
3 Headlamp vertical adjustment screw

왘

Always turn adjustment screws 2 
and 3 simultaneously for vertical ad-
justment until the headlamp is adjust-
ed as shown 1. Turn clockwise for 
upward movement and counterclock-
wise for downward movement.

Graduations:

screw 2: 0.50° pitch

screw 3: 0.67° pitch

The left and right headlamps must be ad-
justed individually.

i

High beam adjustments simultaneous-
ly aim the low beam.

Vehicle should have a normal trunk 
load.

i

If it is not possible to obtain a proper 
headlamp adjustment, have the system 
checked at your authorized 
Mercedes-Benz Light Truck Center.

컄컄

273

Practical hints

Replacing wiper blades

왔

Replacing wiper blades

Removing

왘

Fold the wiper arm forward.

왘

Turn wiper blade at a right angle to wip-
er arm.

1 Wiper blade
2 Safety tab

왘

Press safety tab down 2.

왘

Push wiper blade downward 1 and re-
move.

Installing

왘

Slide the wiper blade into end of wiper 
arm until it locks in place.

왘

Fold the wiper arm back to rest on the 
windshield. Make sure you hold onto 
the wiper when folding the wiper arm 
back.

Warning!

G

For safety reasons, remove key from steer-
ing lock before replacing a wiper blade. Oth-
erwise the motor could suddenly turn on and 
cause injury.

!

Never open the hood when the wiper 
arms are folded forward.

Hold on to the wiper when folding the 
wiper arm back. If released, the force 
of the impact from the tensioning 
spring could crack the windshield.

Do not allow the wiper arms to contact 
the windshield glass without a wiper 
blade inserted.

Make certain that the wiper blades are 
properly installed. Improperly installed 
wiper blades may cause windshield 
damage.

For your convenience, we recommend 
that you have this work carried out by 
an authorized Mercedes-Benz Center.

274

Practical hints

Flat tire

왔

Flat tire

Mounting the spare wheel

Preparing the vehicle

왘

Park the vehicle as far as possible from 
moving traffic on a hard surface.

왘

Turn on the hazard warning flashers.

왘

Engage the steering wheel lock in the 
straight ahead position and set the 
parking brake.

왘

Move the gear selector lever to P.

왘

Have any passenger exit the vehicle at 
a safe distance from the roadway.

왘

Take the spare wheel out of its carrier 
(

컄

page 259).

Lifting the vehicle

왘

Prevent the vehicle from rolling away 
by blocking wheels with wheel chocks 
(not included) or other sizable objects.

When changing wheel on a level surface:

왘

Place one chock in front of and one be-
hind the wheel that is diagonally oppo-
site to the wheel being changed.

When changing wheel on a hill:

왘

Place chocks on the downhill side 
blocking both wheels of the other axle.

왘

Take the two-piece wheel wrench and 
the jack out of the rear compartment 
area (

컄

page 257). Assemble wheel 

wrench.

Warning!

G

The dimensions of the spare wheel are dif-
ferent from those of the road wheels. As a 
result, the vehicle handling characteristics 
change when driving with a mounted spare 
wheel. Adapt your driving style accordingly.

The spare wheel is for temporary use only. 
When driving with spare wheel mounted, en-
sure proper tire pressure and do not exceed 
vehicle speed of 50 mph (80 km/h).

Drive to the nearest Mercedes-Benz Light 
Truck Center as soon as possible to have the 
spare wheel replaced with a regular road 
wheel.

Never operate the vehicle with more than 
one spare wheel mounted.