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 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Remove front seat. Refer to 52 17 030 REMOVING AND INSTALLING/REPLACING BACKREST FRAME ON LEFT OR RIGHT FRONT SEAT (COMFORT) .
Remove both rear panels on front seat backrest. Refer to 52 17 205 REMOVING AND INSTALLING/REPLACING BOTH REAR PANELS ON LEFT OR RIGHT FRONT SEAT BACKREST (COMFORT) .
Remove inner cover on front seat. Refer to 52 13 041 REMOVING AND INSTALLING INNER COVER ON LEFT OR RIGHT FRONT SEAT (NORMAL/SEMIELECTRIC) .
Remove backrest cover for front seat. Refer to 52 17 405 REPLACING BACKREST COVER FOR LEFT OR RIGHT FRONT SEAT (COMFORT) .
Remove head restraint support on front seat. Refer to 52 17 380 REMOVING AND INSTALLING/REPLACING HEAD RESTRAINT MOUNT ON LEFT OR RIGHT FRONT SEAT (COMFORT) .

Release all cable ties on wiring harness (1).

Disconnect all marked plug connections.

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

Fig 1: Locating 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.

Unscrew left and right bolts (3).

Installation:

Tightening torque, refer to 52 10 2AZ in SEATS - TIGHTENING TORQUES - 545I (4.4L) E60/N62 .

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

Remove backrest frame.

Fig 2: Identifying Seat Frame Retaining Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

NOTE: The new backrest frame part contains all the drives. Before installing, check whether backrest frame has a date of manufacture after September 2004.

Fig 3: Locating Centering Hooks On Seat Frame

Courtesy of BMW OF NORTH AMERICA, INC.