See also:

Tire inflation pressure values over100 mph/160 km/h
X3 28i X3 35i ...

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. ...

Owner's Manual for Vehicle
Thank you for choosing a BMW. The more familiar you are with your vehicle, the better control you will have on the road. We therefore strongly suggest: Read this Owner's Manual before starting off ...