System Functions: Notes
WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.
The Active Front Steering system comprises the following functions:
- Steering assistance (= Servotronic)
- Variable steering-gear ratio (= Active Steering)
- Yaw-rate control (= damping of dynamic yaw)
A new function will be added in further development leading to the start of series production of the BMW 3-Series:
- Yaw-moment compensation when braking on a road surface with non-uniform traction
In further development from the E70 , this function is entirely integrated in the Active Steering control unit (3rd generation). Further model series to follow.
The fully electric steering-column adjustment comprises the following functions:
- Manual steering-column adjustment
- Steering-column memory
- Overheating protection for steering-column adjustment motors