See also:

Deactivating/activating DTC Dynamic Traction Control
The system can be deactivated/activated via the TRACTION and SPORT+ programs of the Dynamic Driving Control. ...

Maintenance
The battery is maintenance-free, i.e., the electrolyte will last for the life of the battery. Your service center will be glad to advise you on questions regarding the battery. ...

USB audio interface/audio interface for mobile phone
OverviewIt is possible to connect external audio devices. They can be operated via iDrive. Sound is output over the vehicle speakers. Options for connecting external devices > Connection via US ...