52 17 020 Removing And Installing/Replacing Seat Frame On Left Or Right Front Seat (Comfort)

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Necessary Preliminary Tasks:

Remove front seat. Refer to 52 14 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (NORMAL/ELECTRIC) .
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 outer cover. Refer to 52 14 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON FRONT LEFT OR RIGHT SEAT (NORMAL/ELECTRIC) .
Remove inner cover on front seat. Refer to 52 14 041 REMOVING AND INSTALLING INNER COVER ON LEFT OR RIGHT FRONT SEAT (NORMAL/ELECTRIC) .
Remove adjustment unit for thigh support. Refer to 52 17 023 REMOVING AND INSTALLING/REPLACING ADJUSTING UNIT FOR THIGH SUPPORT ON LEFT OR RIGHT FRONT SEAT .
Remove backrest frame on front seat. Refer to 52 14 030 REMOVING AND INSTALLING/REPLACING BACKREST FRAME ON LEFT OR RIGHT FRONT SEAT .
If necessary, remove drive unit for active seat. Refer to 52 17 025 REMOVING AND INSTALLING/REPLACING DRIVE FOR LEFT OR RIGHT ACTIVE SEAT (COMFORT) .

Remove wiring harness (1) from seat frame (2).

Fig 1: Wiring Harness And Seat Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Release rivets (1) on left and right, remove fastening strips (2) on left and right.

Release screws (3).

Tightening torque, refer to 52 10 6AZ in SEATS - TIGHTENING TORQUES .

Remove seat frame.

Fig 2: Rivets, Screws And Fastening Strips

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 3: Break Off Centring Hooks

The new seat frame part contains all the drives.