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data 
Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car care Index 
Headlamp assembly (Xenon) 
1  Headlamp vertical adjustment screw 
2  Headlamp horizontal adjustment screw 
3  Headlamp cover with locking tab 
4  Bulb socket for turn signal, parking, standing, and  
side marker lamp  5 
Electrical connector for low beam headlamp bulb 
6  Electrical connector for high beam headlamp bulb 
7  Auxiliary fog lamp (if so equipped) 
     
        
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data 
Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car care Index 
Bulbs for high beam (only Halogen headlamps) 
H1 U (55 W) 
Bulbs for low beam  
H7 (55 W) 
Open hood.
Push down tab at top end of cover (3) and remove. Pull  
off electrical connector (5 or 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).  Xenon 
 (optional) 
Bulb for low beam 
Xenon   (optional) 
Bulb for high beam 
Note: 
Vehicles with Xenon headlamps: 
We recommend that you have changed the bulb for the 
high beam by a qualified technician.
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. 
     
        
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data 
Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car care Index 
Parking, standing, side marker and turn signal lamp 
115 6 N A  ( 3 2 / 4 c p b u l b ) 
Open hood. 
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.  Bulbs for auxiliary fog lamp  
(optional) 
H3 U (55 W) 
Open hood. 
Remove cover (9). Unhook clamping ring and remove  
bulb. Pull off electrical connector. 
Insert new bulb in socket (seating properly in cutouts of  
bulb socket), and mount clamping ring. Reinstall and 
push electrical connector on securely. 
Reinstall cover (9). 
     
        
        Page 732 of 4133
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Te ch n ica l 
data 
Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car care Index 
Taillamp assemblies 
1  Stop lamp (1073 [32 cp bulb]) 
2  Backup lamp (1073 [32 cp bulb]) 
3  Turn signal lamp (P Y 21 W bulb) 
4  Tail, parking, standing and side marker lamp,  
driver’s side rear fog lamp (P 21 / 4 W bulb)  Open liftgate. 
Remove nuts (1). 
Remove taillamp.
P82.10-2342-26
P82.10-2343-26 
     
        
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data 
Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car 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.  Turn signal lamp, side  
(168 [3 cp bulb]) 
Carefully slide lamp slightly towards rear (arrow), lift  
away its front end first, then remove lamp from panel. 
Twist bulb socket counterclockwise and pull out. Pull  
bulb out of socket. 
Insert new bulb in socket. Reinstall bulb socket.
To reinstall lamp, set rear end of lamp into panel and let  
front end snap into place. 
     
        
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Te ch n ica l 
data 
Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car 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 
     
        
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Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car care Index 
Adjusting headlamp aim 
Correct headlamp adjustment is extremely important.  
To check and readjust a headlamp, follow steps 1 
through 7. 
Please note: 
•  High beam adjustments simultaneously aim the low  
beam. 
•  Vehicle should have a normal trunk load.  1. Park vehicle on level surface approximately 6 inches  
(152 mm) from a vertical test screen or wall. The 
centerline of the vehicle must be at a 90  ° angle to  
the test screen. 
2. (High beams on): 
Using a carpenter’s level, align and mark a vertical  
centerline (1) on the test screen for each headlamp 
lens at a distance of 25
3/4inches (654 mm) from 
the vertical centerline. As a check, the distance 
between centerlines should be 51
1/2inches  
(1308 mm). The star emblem on the hood may be  
used to determine the vehicle centerline. If the 
distance does not check, have the system verified at 
an authorized Mercedes-Benz Light Truck Center. 
3. Move vehicle on the level surface 25 feet (7.6 m)   straight back from the wall. 
4. Open hood.
V  H
low beam 
     
        
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Instruments  
and controls  Operation Driving 
Instrument  
cluster display  Practical hints 
Car care Index 
5. (High beams on): 
Simultaneously turn adjusting screws (1 and 2 on  
page 261 or 262) counterclockwise to adjust 
headlamp downward, clockwise upward) equally  
until bubble in the level (7 on page 261) is centered  
on the “0” mark. 
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.  7. For proper aim, the indicator (8 on page 261) should  
align with the “0” mark after horizontal adjustment. 
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.