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:
Storing the current speed or calling up
a stored speed
WARNING
The set speed stored in memory should only
be set again if prevailing road conditions and
legal speed limits permit. Possible
acceleration or deceleration differences
arising from ...
Important safety notes
The coolant is a mixture of water and
antifreeze/corrosion inhibitor. It performs
the following tasks:
- corrosion protection
- antifreeze protection
- raising the boiling point
The engine coo ...
Everything considered: integral Mercedes-Benz safety concept
The comprehensive Mercedes approach to integral safety also applies in the
new R-Class. This trailblazing safety philosophy goes well beyond compliance
with standardised crash test regulations. It ...