Diagnosis instructions

NOTE: a number of fault memories in the vertical dynamics management.

The VDM control module only its own faults in its own fault memory. Faults in the damper satellites are saved in their own fault memory. This is why not only the fault memory of the VDM control module but also that of the damper satellites must be read out in the event of a fault. It must be possible for the BMW diagnosis system to reach the damper satellites. This is why the VDM control module also works as the gateway for diagnosis between the PT-CAN and FlexRay.

IMPORTANT: Run a calibration of the height-level sensors.

After replacement of the VDM control module as well as of a height-level sensor, the calibration values of the height-level sensors must be relearned. The service function "ride-height-calibration" on the BMW diagnosis system must be used.

IMPORTANT: Run a calibration of the vertical-acceleration sensors.

After replacement of one or several damper satellites, calibration of the vertical-acceleration sensors must always be carried out. On the BMW diagnosis system, use the service function "Vertical-acceleration sensor calibration".

The vehicle must be stationary on an even surface.