Setting the airflow
X Turn the SmartKey to position 2 in the ignition lock.
► To increase: press the 
button.
► To reduce: press the 
button.
The airflow from the rear-compartment vents and the center vents is the same.
See also:
Important safety notes
WARNING
The vehicle is braked when the HOLD function
or DISTRONIC PLUS is activated. Therefore,
deactivate HOLD and DISTRONIC PLUS if the
vehicle is to be towed.
The vehicle can be towed a maximu ...
Brake fluid
WARNING
Over a period of time, the brake fluid absorbs
moisture from the air; this lowers its boiling
point.
If the boiling point of the brake fluid is too low,
vapor pockets may form in the br ...
Convenience opening
General notes
You can ventilate the vehicle before you start
driving. To do this, the SmartKey is used to
carry out the following functions
simultaneously:
• unlock the vehicle
• open the side w ...