Display messages
Possible causes/consequences and
M
Solutions
b
Reversing light
The left or right-hand reversing lamp is faulty.
X
Replace the bulb (
Y
page 123).
b
Left tail lamp
or
Right tail lamp
The left or right-hand tail lamp is faulty.
X
Standard tail lamp: replace the bulb (
Y
page 123).
X
LED tail lamp: visit a qualified specialist workshop.
b
Malfunction
The exterior lighting is faulty.
X
Visit a qualified specialist workshop.
Vehicles with trailer tow hitch: a fuse may be defective.
X
Check the fuses and if necessary replace any blown fuses (see the
"Fuse allocation" supplement).
X
If the display message does not disappear, consult a qualified spe-
cialist workshop.
b
Left daytime driv‐
ing lamp
or
Right
dayt. driving lamp
The left or right-hand daytime driving lamp is faulty.
X
Halogen headlamp: replace the bulb (
Y
page 123).
X
LED headlamp: visit a qualified specialist workshop.
Engine
Display messages
Possible causes/consequences and
M
Solutions
#
A warning tone also sounds. The battery is no longer being charged.
Possible causes:
R
faulty alternator
R
torn poly-V-belt
R
a malfunction in the electronics
X
Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
!
Do not continue driving. The engine could otherwise overheat.
X
Secure the vehicle against rolling away (
Y
page 177).
X
Consult a qualified specialist workshop.
Exhaust filter:
high eng. speed
+
The automatic regeneration of the diesel particle filter is not sufficient
or has malfunctioned.
X
Drive at an engine speed of above 2000 rpm until the display mes-
sage disappears.
If the display message does not go out after approximately
20 minutes, have the malfunction rectified immediately at a quali-
fied specialist workshop.
252
Display messages (vehicles without steering wheel buttons)
On-board computer and displays
