See also:

Servicing the brakes
If the red brake warning lamp lights up in the instrument cluster and you hear a warning tone while the engine is running, the brake fluid level may be too low. Observe additional warning messa ...

Manual interior lighting control
To switch the front interior lighting on/ off: press the button. To switch the rear interior lighting on/ off: press the button. To switch the reading lamps on/off: press the button. ...

System self-test
After you have switched on the ignition, the system carries out a self-diagnosis. WARNING   A malfunction in the system has been detected if one of the following conditions occurs: • t ...