See also:

Notes
At high temperatures, the charge function of the mobile phone can be limited where appropriate and the functions are no longer executed. When the mobile phone is used via the vehicle, ...

Tire inflation pressure values up to 100 mph/160 km/h
528i 528i xDrive 535i 550i 535i xDrive 550i xDrive ...

Switching off automatically
The system switches off and the LED goes out: After approx. 160 ft/50 m when driving forward. Above approx. 22 mph/36 km/h when driving forward. Switch on the system again if necessary. ...