Important information
The cooling with air dehumidification function is only available when the engine is running. The air inside the vehicle is cooled and dehumidified according to the temperature selected.
WARNING
If you switch off the cooling function, the vehicle will not be cooled when weather conditions are warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others.
Condensation may drip from the underside of the vehicle when it is in cooling mode. This is normal and not a sign that there is a malfunction.
The cooling with air dehumidification function uses refrigerant R134a. This
coolant does not contain chlorofluorocarbons, and therefore does not damage the
ozone layer.
See also:
Seat belt
Display messages
Possible causes/consequences and
Solutions
After starting the engine, the red seat belt warning lamp lights up for
six seconds.
The seat belt war ...
Activating/deactivating PRE-SAFE®
Brake
PRE-SAFE® Brake is only available in vehicles
with DISTRONIC PLUS.
– Press the or
button on the
steering wheel to select the DriveAssist
menu.
– Press or
to select PRE-SAFE
Brake.
– P ...
Diesel
Fuel grade
Only refuel with ULTRA-LOW SULFUR
DIESEL FUEL (ULSD, 15 ppm SULFUR
MAXIMUM). Using other diesel fuels could
result in increased wear and damage to the
engine and/or exhaust system.
...
