Mercedes-Benz C-Class Operator's Manual page 270

Display messages
268
Display messages
Adaptive Highbeam
Assist Inoperative
Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual
Engine
Display messages
+
Check Coolant Level
See Operator's Man‐
ual
?
Possible causes/consequences and M Solutions
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
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 333).
Y
If you have to add coolant frequently:
Contact a qualified specialist workshop and have the engine cooling
X
system checked.
The fan motor is faulty.
At coolant temperatures below 248 ‡ (120 †), drive to the nearest
X
qualified specialist workshop.
Avoid heavy loads on the engine as you do so, e.g. driving in moun-
X
tainous terrain and stop-start traffic.
message is displayed.