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.
http://strategic-human-resource.com/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 above the 
button
lights up or goes out.
See also:
Headlamp cleaning system
The headlamps are cleaned automatically if the "Wipe with washer fluid" function
is operated ten times while the lights are on and the engine is running (). When you switch off the ignitio ...
Trailer towing
- Drive in the middle of the engine speed
range on uphill gradients.
- Depending on the uphill or downhill
gradient, shift down into shift range 3 or
2, even if cruise control or
DISTRONIC PL ...
Hydroplaning
If water has accumulated to a certain depth
on the road surface, there is a danger of
hydroplaning occurring, even if:
- you drive at low speeds.
- the tires have adequate tread depth.
For this ...