Mercedes-Benz M-Class 2014 Owners Manual - Manual (Page 299)

Display messages Possible causes/consequences and M Solutions
b
Check Front Left
Parking Lamp or
Check Front Right
Parking Lamp
The front left or front right parking or standing lamp is defective.
X Check whether you are permitted to replace the bulb yourself
(
Y
page 129).
or
X Visit a qualified specialist workshop.
b
Backup Light
The backup lamp is defective.
X
Visit a qualified specialist workshop.
b
Check Front Left
Sidemarker Lamp or
Check Front Right
Sidemarker Lamp
The left or right front side marker lamp is defective.
X Visit a qualified specialist workshop.
b
Check Left Tail
Lamp or Check
Right Tail Lamp
The left or right-hand tail lamp is defective.
or
The rear left or right side marker lamp is defective.
X Visit a qualified specialist workshop.
b
Check Left Daytime
Running
Light or Check Right
Daytime Running
Light
The left-hand or right-hand daytime running lamp is faulty.
X Visit a qualified specialist workshop.
b
Active Headlamps
Inoperative
The active light function is defective.
X Visit a qualified specialist workshop.
b
Malfunction See
Operator's Manual
The exterior lighting is defective.
X Visit a qualified specialist workshop.
Vehicles with trailer tow hitch: a fuse may have blown.
X Check the fuses (
Y
page 394).
X If necessary, replace the blown fuse. Observe the warning notes.
If the display message continues to be displayed:
X Visit a qualified specialist workshop.
Display messages
297
On-board
computer
and
displays
Z