52 14 899 Additional work (normal/ electric) with defective drive for longitudinal adjustment: Notes

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 330Ci, 2005 BMW 330xi, 2005 BMW 330i, 2005 BMW 330Ci, and 2004 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

Set seat tilt adjustment to max. up setting.

Release screw (1) on actuator drive (2) of longitudinal seat adjustment.

Fig 1: Releasing Screw On Actuator Drive Of Longitudinal Seat Adjustment

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) on servodrive (2) of longitudinal seat adjustment and remove servodrive (2).

Activate the operating switch for the seat position adjustment:

No function:
- Disconnect plug for longitudinal seat adjustment
- Connect new servodrive and check function
- If servodrive is running, gear is OK.
- Reassemble front seat
Actuator drive running:
- Transmission for longitudinal seat adjustment defective!
- Continue with
Disassembly of faulty gear for longitudinal seat adjustment

Fig 2: Removing Servodrive
Courtesy of BMW OF NORTH AMERICA, INC.