67 31 500 Removing and installing/replacing drive unit for longitudinal seat adjustment

Necessary preliminary tasks:

Disconnect plug connections (1).

Release expander rivets (2), replace if necessary.

Fig 1: Releasing Expander Rivets

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not kink drive shafts (4).

Raise flange (1) with drive unit for longitudinal seat adjustment (2) slightly and detach from left drive shaft.

Feed out drive unit for longitudinal seat adjustment (2) in direction of arrow and detach from right drive shaft.

NOTE: To facilitate installation/removal, lever out guide clip (3) if necessary.

Installation:

Make sure guide clips (3) and both drive shafts (4) are correctly seated.

Comfort seat only:

Replacement:

INITIALIZE drive unit for backrest head adjustment.

Fig 2: Identifying Guide Clips And Both Drive Shafts

Courtesy of BMW OF NORTH AMERICA, INC.