See also:

Self-leveling headlights
The self-leveling headlights feature adapts the light distribution to the contours of the road. The light distribution is lowered on hilltops to avoid blinding oncoming traffic and tilted in depr ...

Malfunction
A Check Control message is displayed. On the Control Display, the areas in front of and behind the vehicle are shaded. PDC has failed. Have the system checked. To ensure full operability: ` ...

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...