Problems with the cooling with air dehumidification function
When you press the 
button, the
indicator lamp in the button flashes three
times or remains off. You can no longer switch
on the cooling with air dehumidification
function.
Consult a qualified specialist
workshop.
See also:
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 ...
Vehicles with automatic transmission
Apply the electric parking brake.
Shift the transmission to position P.
Using the SmartKey
Turn the SmartKey to position 0 in the
ignition lock and remove it.
The immobilizer is activated.
...
Activating/deactivating the rear view
camera
– To activate: make sure that the SmartKey
is in position 2 in the ignition lock.
– Make sure that the "rear view camera"
function is selected in COMAND (see the
separate operating in ...