On-board computer and displays, Display messages – Mercedes-Benz 2013 M Class User Manual
Page 302
Display messages
Possible causes/consequences and M Solutions
#
The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R
a defective alternator
R
a torn poly-V-belt
R
a malfunction in the electronics
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X
Open the hood.
X
Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
!
Do not continue driving. The engine could otherwise overheat.
X
Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X
Visit a qualified specialist workshop.
4
Check Engine Oil
At Next Refueling
The engine oil level has dropped to the minimum level.
A warning tone also sounds.
X
Check the oil level when next refueling, at the latest
(
X
If necessary, add engine oil (
X
Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
!
Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
300
Display messages
On-board computer and displays