See also:

BMW Connected Drive
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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. ...

Deactivating DSC: DSC OFF
DSC can be deactivated. To do this, activate the DSC OFF program. This is performed via the Dynamic Driving Control. ...