Mercedes-Benz E-Class Operator's Manual page 271

Display messages
b
Auto Lamp Auto Lamp Function Function
Inoperative Inoperative
b
Switch Off Lights Switch Off Lights
Adaptive Highbeam Adaptive Highbeam
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual
Adaptive Highbeam Adaptive Highbeam
Assist Inoperative Assist Inoperative
Engine
Display messages
+
Check Coolant Check Coolant
Level See Level See
Operator's Manual Operator's Manual
?
Possible causes/consequences and M 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 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 Now Available
displayed.
Adaptive Highbeam Assist is operational again.
Adaptive Highbeam Assist is faulty.
Visit a qualified specialist workshop.
X
Possible causes/consequences and M 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 339).
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.
Display messages
message is
269
Z