Engine; Display Message - Mercedes-Benz M-Class Operator's Manual

Display messages
298
Display messages
b
Auto Lamp Function
Inoperative
b
Switch Off Lights
Adaptive Highbeam
Assist Inoperative
Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual

Engine

Display messages
+
Check Coolant
Level See
Operator's Manual
?
Possible causes/consequences and M Solutions
The light sensor is defective.
Visit a qualified specialist workshop.
X
The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
Turn the light switch to Ã.
X
Adaptive Highbeam Assist is faulty.
Visit a qualified specialist workshop.
X
Adaptive Highbeam Assist is deactivated and temporarily
inoperative. Possible causes are:
the windshield in the camera's field of vision is dirty.
R
visibility is impaired due to heavy rain, snow or fog.
R
Clean the windshield.
X
If the system detects that the camera is fully operational again,
the Adaptive Highbeam Assist Now Available
displayed.
Adaptive Highbeam Assist is operational again.
Possible causes/consequences and M Solutions
The coolant level is too low.
! Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
Add coolant, observing the warning notes before doing so
X
( page 367).
Y
If coolant needs to be added more often than usual, have the
X
engine coolant system checked at a qualified specialist
workshop.
The fan motor is faulty.
At coolant temperatures below 248 ‡ (120 †) drive to the
X
nearest qualified specialist workshop.
Avoid subjecting the engine to heavy loads, e.g. driving in
X
mountainous terrain, and stop-and-go traffic.
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