See also:

Adjusting the volume
Turn the knob until the desired volume is selected. The setting is stored for the remote control currently in use. ...

Customer Relations
At a glance Contact Customer Relations for information on all aspects of your vehicle. Calling Customer Relations Vehicles not equipped with BMW Assist or TeleService 1. "BMW Assist" ...

Vehicle care
Car care products BMW recommends using cleaning and care products from BMW, since these have been tested and approved. Car care and cleaning products Follow the instructions on the container. ...