52 17 030 Removing and installing/replacing backrest frame on left or right front seat (comfort)

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT SEAT
Remove BOTH REAR PANELS on front seat backrest
Remove INNER COVER on front seat
Remove BACKREST COVER for front seat
Remove HEAD RESTRAINT SUPPORT on front seat

Release all cable straps on wiring harness (1).

Disconnect all marked plug connections.

Feed through wiring harness (1) at bottom right on backrest frame.

Fig 1: Identifying Cable Ties On Wiring Harness

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip left and right clips (1).

Unhook seat covers (2) on left and right.

Release left and right screws (3).

Tightening torque: see 2AZ in 52 10 FRONT SEATS .

If necessary, remove lumbar cushion with drive and valve block.

Remove backrest frame.

Fig 2: Identifying Seat Covers Screws And Clips

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

When replacing backrest or seat frame, break off centering hooks (1) from seat frame.

Fig 3: Break Off Centering Hooks From Seat Frame

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The new backrest frame part contains all the drives.
Before installation, check if backrest frame has a production date after September 2004.