See also:

Lumbar support
The curvature of the seat backrest can be adjusted in such a way that it supports the lumbar region of the spine. The lower back and the spine are supported for upright posture. ► Press the ...

Activating HDC
Press the button; the LED above the button lights up. ...

Releasing
With the ignition switched on: Automatic transmission: Press the switch while the brake is pressed or transmission position P is engaged. The LED and indicator lamp go out. The parking bra ...