Problems with the rear window defroster
The rear window defroster has deactivated itself prematurely or cannot be activated.
•► Switch off any consumers that are not required, e.g. reading lamps or interior lighting.
When the battery is sufficiently charged, the rear window defroster is activated again automatically.
See also:
Maintenance
The Service and Warranty Booklet describes
all the necessary maintenance work which
should be done at regular intervals.
Always have the Service and Warranty
Booklet with you when you bring the ...
Warranty
The Service and Warranty Information booklet contains detailed information about
the warranties covering your vehicle.
Your authorized Mercedes-Benz Center will exchange or repair any defective par ...
Engine
Display messages
Possible causes/consequences and Solutions
Check Coolant
Level See Operator's Manual
The coolant level is too low.
Add coolant, observing the war ...