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

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:

1. No function:
   • Disconnect plug for longitudinal seat adjustment
   • Connect new servodrive and check function
   • If servodrive is running, gear is OK.
   • Reassemble front seat
2. 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.