See also:

General information
Refuel promptly Refuel no later than at a range of 30 miles/50 km, or operation of the engine is not ensured and damage may occur.◄ ...

Malfunction
In the event of a malfunction, the steering wheel must be turned further, while the vehicle responds more sensitively to steering wheel movements in the higher speed range. The stability-enhanc ...

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