52 16 021 Removing and installing/replacing adjusting unit for thigh support on driver's seat

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 325

Move front seat into top position.

Unclip cover (1) with special tool 00 9 325 starting at the inside (arrow).

Fig 1: Moving Front Seat Into Top Position

Courtesy of BMW OF NORTH AMERICA, INC.

Fold up and unclip cover (1).

Fig 2: Uncliping Driver Seat Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Move thigh support (1) as far forward as possible.

Fig 3: Identifying Thigh Support

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Unfasten screws (2).

Remove thigh support upward.

Installation note:

Insert screws (2) with Loctite.

Tightening torque 52 10 11AZ .

Fig 4: Identifying Plug Connection And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip and remove cover (1) toward the top with special tool 00 9 325.

Installation note:

Secure guide pins (2) in seat frame and clip cover (1) into place.

Fig 5: Securing Guide Pins In Seat Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Fig 6: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque 52 10 09AZ .

Fig 7: Identifying Thigh Support Mounting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Raise adjusting unit (1) complete with electric motor in direction of arrow and feed out downward.

Fig 8: Raising Adjusting Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Adjusting unit (1) must lie flush on facing (2).

Fig 9: Identifying Adjusting Unit And Facing

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Make sure latch mechanism (1) of adjusting frame is correctly on frame (2) (as illustrated).

Fig 10: Identifying Adjusting Frame Latch Mechanism And Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Special tools required:

00 9 325

Move front seat into top position.

Unclip cover (1) with special tool 00 9 325 starting at the inside (arrow).

Fig 1: Moving Front Seat Into Top Position

Courtesy of BMW OF NORTH AMERICA, INC.

Fold up and unclip cover (1).

Fig 2: Uncliping Driver Seat Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Move thigh support (1) as far forward as possible.

Fig 3: Identifying Thigh Support

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Unfasten screws (2).

Remove thigh support upward.

Installation note:

Insert screws (2) with Loctite.

Tightening torque 52 10 11AZ .

Fig 4: Identifying Plug Connection And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip and remove cover (1) toward the top with special tool 00 9 325.

Installation note:

Secure guide pins (2) in seat frame and clip cover (1) into place.

Fig 5: Securing Guide Pins In Seat Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Fig 6: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque 52 10 09AZ .

Fig 7: Identifying Thigh Support Mounting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Raise adjusting unit (1) complete with electric motor in direction of arrow and feed out downward.

Fig 8: Raising Adjusting Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Adjusting unit (1) must lie flush on facing (2).

Fig 9: Identifying Adjusting Unit And Facing

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Make sure latch mechanism (1) of adjusting frame is correctly on frame (2) (as illustrated).

Fig 10: Identifying Adjusting Frame Latch Mechanism And Frame

Courtesy of BMW OF NORTH AMERICA, INC.