Adjusting headlamp aim, Practical hints – Mercedes-Benz M-Class 2009 Owners Manual User Manual
Page 364
Replacing bulbs
362
LED rear lamp: Gently press the new bulb
into its bulb socket.
X
Align the bulb socket and turn it clockwise.
X
Make sure the bulb socket is attached
properly.
X
Close the respective cover in the cargo
compartment.
X
Close the tailgate.
License plate lamps
1
Screws
2
Lamp cover
X
Loosen screws
1
of lamp cover to be
removed.
X
Remove lamp cover
2
.
X
Replace the bulb.
X
Reinstall lamp cover
2
.
X
Retighten screws
1
.
1
V Vertical centerline
2
H Horizontal mounting height, measured
from the center
Correct headlamp adjustment is extremely
important. High beam adjustments
simultaneously aim the low beam. To check
and readjust a headlamp, follow the steps
described:
X
Park the vehicle on a level surface 25 feet
(7.6 m) from a vertical test screen or wall.
X
Make sure the vehicle has a normal tailgate
load.
X
Switch on the low beam headlamps
B
.
If the beam does not show a beam pattern as
indicated in the figure left, then follow the
steps below:
X
Practical hints