The concept
The parking brake is used to prevent the vehicle from rolling when it is parked.
- Engine switched off: the parking brake acts on the rear wheels.
- Engine running: the parking brake acts on the disc brakes of the front and rear wheels via the hydraulic brake system.
The parking brake can be set manually or automatically:
- Manual: by pulling and pushing the switch.
- Automatic: by activating Automatic Hold.

See also:
Washer/wiper system
Do not switch on the wipers if frozen<>
Do not switch on the wipers if they are frozen
onto the windshield; otherwise, the wiper
blades and the windshield wiper motor may be
damaged. ...
Electronic displays
With the Professional navigation system
1 Selection list, such as for the radio
Navigation display
Speed limit detection
Computer
2 Transmission displays
3 Service requirements
Messages ...
Supplementary text messages
You can call up more information, e.g., on the
cause of a malfunction and on how to respond,
via Check Control.
In urgent cases, this information will be shown
as soon as the corresponding lamp ...
