Rear window defroster
Activating/deactivating
The rear window defroster has a high current draw. You should therefore switch it off as soon as the rear window is clear. Otherwise, the rear window defroster switches off automatically after several minutes.
If the battery voltage is too low, the rear window defroster may switch off.
■ Turn the SmartKey to position 2 in the ignition lock .
■ Press the 
button.
The indicator lamp in the 
button
lights
up or goes out.
Problems with the rear window defroster
See also:
Useful information
This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
...
General notes
Before you first drive off, read this Operator's
Manual carefully and familiarize yourself with
your vehicle.
For your own safety and a longer vehicle life,
follow the instructions and warning n ...
DEF (BlueTEC vehicles only)
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF.
When the supply of DEF is almost used up,
the Check Additive See Op ...