Mercedes-Benz B-Class 2011, Owner'S Manual

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Display messages Possible causes/consequences and M Solutions
b
Switch off lights
The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to à .
Adaptive Main-beam
Assist inoperative
Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop.
Adaptive Main-beam
Assist currently
unavailable See
Owner's Manual
Adaptive Highbeam Assist is deactivated and temporarily inoper-
ative. Possible causes:
R
the windscreen is dirty in the camera's field of vision.
R
visibility is impaired due to heavy rain, snow or fog.
X
Clean the windscreen.
If the system detects that the camera is fully operational again,
the Adaptive Main-beam Assist available again message
is displayed.
Adaptive Highbeam Assist is operational again.
Engine
Display messages Possible causes/consequences and M Solutions
+
Top up coolant See
Owner's Manual
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.
X
Top up the coolant, observing the warning notes before doing
so (
Y
page 265).
X
If the coolant needs topping up more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop.
?
The fan motor is faulty.
X
If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X
Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop-start traffic.
Display messages
219
On-board
computer
and
displays
Z