Activating/deactivating
WARNING
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window defroster has a high current draw. You should therefore switch it off as soon as the window is clear as it only 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 
rocker switch up or
down.
The indicator lamp in the rocker
switch lights up or goes out.
See also:
Cockpit
Cockpit
Function
1 Steering wheel paddle shifters
2 Cruise control lever
3 Instrument cluster
4 Horn
5 PARKTRONIC warning display (Canada only)
6 Overhead control panel
7 Climate control sys ...
Problems with PARKTRONIC
Problem
Possible causes/consequences and
Solutions
Only the red segments in the PARKTRONIC warning displays
are lit.
You also hear a warning tone for approximately two s ...