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

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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 ties on wiring harness (1).

Disconnect all marked plug connections.

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

Fig 1: Locating 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 52 10 2AZ . See 10 FRONT SEATS .

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

Remove backrest frame.

Fig 2: Identifying 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 (1) From Seat Frame

Courtesy of BMW OF NORTH AMERICA, INC.

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