Page 265 of 344
265 Practical hints
Opening / closing in an emergency
Opening / closing in an emergency
Sliding / pop-up roof*
You can open or close the sliding / pop-up
r o o f m a n u a l l y s h o u l d a n e l e c t r i c a l m a l f u n c -
tion occur.
The sliding / pop-up roof drive is located
behind the cover between the front interior
lamps.
1Hexagon drive hole
2Crank
3Cover
Pry off cover3 using a flat blade
srewdriver.
Obtain crank2.
Insert crank2 through hole.
Turn crank2 clockwise to:
slide roof closed
raise roof at the rear
Turn crank2 counterclockwise to:
slide roof open
lower roof at the rear
The sliding / pop-up roof must be synchro-
nized if it has been operated manually
(
page 149).iPush crank2 upward while turning it,
to disengage the electric motor.
Page 266 of 344
266 Practical hintsReplacing bulbs
Replacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See your autho-
rized Mercedes-Benz Light Truck Center
for headlamp adjustment.
Bulbs Front lamps
iIf the headlamps are fogged up on the
inside as a result of high humidity, driv-
ing the vehicle a distance should clear
out the fogging.
Lamp
Type
1
Fog lamp
H8 (35 W)
2
High beam
H7 (55 W)
3
Low beam
H7 (55 W)
Xenon* D2S-35 W
4
Turn signal,
parking, stand-
ing and side
marker lamp
1157 NA
(32 / 3 cp bulb)
5
Additional turn
signal
LED
Page 267 of 344

267 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement
Use only 12-volt bulbs of the same type
and with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not light
up, visit an authorized Mercedes-Benz
Light Truck Center.
Have the LEDs and bulbs for the follow-
ing lamps replaced by an authorized
Mercedes-Benz Light Truck Center:
Additional turn signals in the exteri-
or rear view mirrors
Bi-Xenon lamps*
Front fog lamps (vehicles with sport
package)*
Lamp
Type
6
Brake lamp
1073
(32 cp bulb)
7
Backup lamp
1073
(32 cp bulb)
8
Turn signal lamp
PY 21 W
9
Tail, parking and
standing lamp
Rear fog lamp, driv-
er’s side
P 21 / 4 W
a
Side marker lamp
W5W
b
High mounted brake
lamp
1073
(32 cp bulb)
c
License plate lamps
C 5 W
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
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 268 of 344
268 Practical hintsReplacing bulbsReplacing bulbs for front lamps
Replacing low beam bulbs
1Low beam halogen or Bi-Xenon* head-
lamp cover with locking tab2Electrical connector
Bi-Xenon* headlampHalogen headlamp
Switch off the lights.
Open the hood (
page 217).
Push down tab at top end of cover1
and remove.
Pull electrical connector2 off.
Unclip the retainer springs and take out
the bulb.
Insert the new bulb so that the base lo-
cates in the recess on the holder.
Clip the retainer springs.
Plug the connector2 onto the bulb.
Align headlamp cover and click into
place.
Warning!
G
Do not remove the cover
1
for the
Bi-Xenon headlamp. Because of high voltage
in xenon lamps, it is dangerous to replace
the bulb or repair the lamp and its compo-
nents. We recommend that you have such
work done by a qualified technician.
Page 269 of 344
269 Practical hints
Replacing bulbs
High beam bulbs
1High beam headlamp cover with lock-
ing tab
Switch off the lights.
Open the hood (
page 217).
Twist cover1 counterclockwise and
remove.2Electrical connector
Pull electrical connector2 off.
Unclip the retainer springs and take out
the bulb.
Insert the new bulb so that the base lo-
cates in the recess on the holder.
Clip the retainer springs.
Plug the connector2 onto the bulb.
Align headlamp cover and click into
place.Turn signal, parking, standing and side
marker lamp bulbs
1Bulb socket
Switch off the lights.
Open the hood (
page 217).
Twist bulb socket1 counterclockwise
and pull out.
Push bulb into socket, turn counter-
clockwise and remove.
Insert new bulb in socket, push in and
twist clockwise.
Reinstall the bulb socket.
Page 270 of 344
270 Practical hintsReplacing bulbs
Align headlamp cover and click into
place.
Fog lamp bulbs
1Fog lamp
Switch off the lights.
Use a suitable object (e.g. screwdriver)
to press on the release lever behind the
front panel.
Front fog lamp1 releases.
Remove fog lamp out of bumper.2Bulb socket
3Tabs
Twist bulb socket2 counterclockwise
to its end stop and pull out.
Pull bulb out of the bulb socket.
Insert new bulb in socket.
Reinstall bulb socket2.
Twist bulb socket2 clockwise to its
end stop.
Reinstall fog lamp into the bumper.
Make sure tabs3 firmly seat into the
slots of holder.
Replacing bulbs for rear lamps
Tail lamp assemblies
Switch off the lights.
Open liftgate.
1Screws
2Tail, parking and standing lamp
Fog lamp, driver’s side
3Side marker lamp
4Turn signal lamp
5Backup lamp
6Brake lamp
Remove screws1.
Remove tail lamp.
Page 271 of 344
271 Practical hints
Replacing bulbs
7Tabs
Squeeze tabs7 together and remove
bulb holder.
Gently push bulb into socket, turn
counterclockwise and remove.
Insert new bulb in socket, push in and
turn clockwise.
Reinstall bulb holder. You should hear
it engage.
Insert the tail lamp in the body, lower
edge first. Make sure it engages.
Retighten screws with washers on
them.License plate lamp
1License plate lamp
2Screws
Switch off the lights.
Loosen both screws2 and remove
lamp.
Replace the tubular lamp and reinstall
lamp.
Retighten the screws.High mounted brake lamp
1Cover
2Tab
Switch off the lights.
Squeeze both sides of cover1, fold it
forward and remove.
Press tab2 on reflector and remove
reflector.
Gently push bulb into socket, turn
counterclockwise and remove.
Insert new bulb in socket, push in and
turn clockwise.
Page 272 of 344

272 Practical hintsReplacing bulbs
Insert reflector from the left so that it
engages on the right.
Position tabs of cover in slots and rein-
stall cover until properly seated.
Adjusting headlamp aim
VVertical centerline
HHeadlamp mounting high, measured
from the centerCorrect headlamp adjustment is extremely
important. To check and readjust a head-
lamp, follow the steps described:
Park the vehicle on a level surface
25 feet (7.6 m) from a vertical test
screen or wall.
Switch the headlamps on
(page 110).
If the beam does not show a beam pattern
as indicated in the figure left, then follow
the steps below:
Open hood (
page 217).
2Headlamp vertical adjustment screw
3Headlamp vertical adjustment screw
Always turn adjustment screws2
and3 simultaneously for vertical ad-
justment until the headlamp is adjust-
ed as shown1. Turn clockwise for
upward movement and counterclock-
wise for downward movement.
Graduations:
screw2: 0.50° pitch
screw3: 0.67° pitch
The left and right headlamps must be ad-
justed individually.
iHigh beam adjustments simultaneous-
ly aim the low beam.
Vehicle should have a normal trunk
load.
iIf it is not possible to obtain a proper
headlamp adjustment, have the system
checked at your authorized
Mercedes-Benz Light Truck Center.