See also:

Functional readiness of the airbagsystem
When the ignition is switch on, the warning lamp in the instrument cluster lights up briefly and thereby indicates the operational readiness of the entire airbag system and the belt tensioner. ...

Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...

Configuring cell phone
Additional functions can be activated or deactivated for paired and connected mobile phones. 1. "Telephone" 2. "Bluetooth® (phone)" 3. Highlight the mobile phone to be config ...