See also:

BMW Maintenance System
The maintenance system directs you to required maintenance measures and thereby supports you in maintaining road safety and the operational reliability of the vehicle. ...

5 Series Gran Turismo
For 2010, BMW added a hatchback version of its rear-wheel-drive 5 Series, dubbed the 5 Series Gran Turismo, starting with a 550i "GT" powered by the same 400-hp, twin-turbo V-8 as the 55 ...

Deleting the button assignments
1. Press buttons 1 and 8 simultaneously for approx. five seconds. 2. "OK" ...