67 31 520 Removing and installing/replacing seat height adjustment drive unit

Necessary preliminary work: 

• Remove driver's or front passenger seat  . See 52 14 001 REMOVING AND INSTALLING FRONT SEAT, DRIVER'S SIDE or 52 14 002 REMOVING AND INSTALLING FRONT SEAT, FRONT PASSENGER SIDE .

Set down front seat sideways on a suitable surface.

Disconnect plug connection (1).

Unfasten screws (2).

Tightening torque 67 31 1AZ .

Feed out seat height adjustment drive unit (3) and remove.

Fig 1: Removing Seat Height Adjustment Drive Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Fit seat height adjustment drive unit (1) with plastic clamp (2) only.

Make sure plastic clamp (2) is correctly seated.

Fig 2: Identifying Seat Height Adjustment Drive Unit With Plastic Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement: 

INITIALIZE  seat height adjustment drive unit.

Necessary preliminary tasks: 

• Remove driver's or front passenger seat  . See 52 14 001 REMOVING AND INSTALLING FRONT SEAT, DRIVER'S SIDE or 52 14 002 REMOVING AND INSTALLING FRONT SEAT, FRONT PASSENGER SIDE .

Release screws (1).

Fig 1: Identifying Seat Height Adjustment Drive Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Unfasten plug connection (2) and disconnect.

Remove seat height adjustment drive unit (3).

Fig 2: Identifying Seat Height Adjustment Drive Unit Plug Connection, Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Measuring Seat Cushion Tilt Adjustment Drive Unit Dimension

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement: 

Measure dimension (A) and adjust by turning holder (1) on new drive unit for seat cushion tilt adjustment (2).

INITIALIZE  drive unit for seat cushion tilt adjustment.

Replacement: 

INITIALIZE  seat height adjustment drive unit.