After a power failure
Only put the parking brake into operation
after a power failure
The parking brake should only be put into operation again if it was manually released due to an interruption in the supply of electrical power. Otherwise, it cannot be ensured that the parking brake will function properly.
Putting the parking brake into operation
1. Switch on the ignition.
2. 
Press the switch while the
brake is depressed
or transmission position P is engaged.
It may take several seconds for the brake to be put into operation. Any sounds associated with this are normal.
The indicator lamp in the
instrument
cluster goes out as soon as the parking
brake is ready for operation.
Lower lamp: indicator lamp in
Canadian
models.
See also:
Checking the coolant level
1. Do not open the hood until the engine has
cooled down.
2. Turn the expansion tank cap counterclockwise
slightly to allow any accumulated pressure
to escape; then continue turning to
open.
...
COMFORT+
Comfort-oriented tuning of the shock absorbers
for optimal traveling comfort with maximum
driving stabilization.
Activating COMFORT+
Press the button repeatedly
until COMFORT+
appears in th ...
Deactivating HDC
Press the button again and the
LED goes
out. HDC is automatically deactivated
above approx. 37 mph/60 km/h. ...