See also:

The concept
The following can be operated using the buttons and the thumbwheel on the steering wheel: Current audio source. Redial on telephone*. Activation of the voice activation system*. ...

Switching off automatically
The system switches off and the LED goes out: After approx. 160 ft/50 m when driving forward. Above approx. 22 mph/36 km/h when driving forward. Switch on the system again if necessary. ...

Run-flat tires
Label RSC label on the tire sidewall. The wheels are composed of special rims and tires that are self-supporting, to a limited degree. The support of the sidewall allows the tire to remain ...