Storing
1. Switch on the ignition.
2. Set the desired position.
3. 
Press the button. The LED in the
button lights up.
4. Press the desired button 1 or 2. The LED
goes out.
If the M button is pressed accidentally:
Press the button again.
The LED goes out.
See also:
Brake force display
The concept
During normal brake application, the outer
brake lamps light up.
During heavy brake application, the inner
brake lamps light up in addition.
...
Knob in the instrument cluster
Press the knob.
▷ When the ignition is switched on, the trip
odometer is reset.
Press the knob for approx. 5 seconds:
View service requirement display
▷ When the ignition is switched ...
Switching off automatically
System switches off: above approx. 9 mph/
15 km/h.
Switch on the system again if necessary. ...