AR91.29-P-1430M Remove/Install Front Seat (Backrest) Adjusting Motors

AR91.29-P-1430M Remove/Install Front Seat (Backrest) Adjusting Motors
- Backrest adjustment and head restraint adjustment







1 Remove front seat
2 Remove seat-back lining from seat backrest
3 Remove head restraint up/down motor (M27m4/M28m4)

NOTE: Only when replacing. First press head restraint up/down motor (M27m4/M28m4) to right side and then remove downward.

4 Expose upholstery (1) around backrest forward/back motor (M27m5, M28m5) (see arrow)

5 Remove side paneling (9) from seat belt buckle (7)

NOTE: Screws (8, arrow) and retaining clip (see detail).

6 Disconnect head restraint wiring harness (2) from head restraint up/down motor (M27m4, M28m4)

NOTE: Head restraint wiring harness (2) and wiring harness (10) are connected together with the backrest forward/back motor (M27m5, M28m5).

7 Expose head restraint wiring harness (2) at right side of backrest frame
8 Expose wiring harness (1) of left (N32/1), right (N32/2) front seat adjustment control module with memory as far as backrest forward/back motor (M27m5, M28m5)

NOTE: Installation: Fix wiring harness (10) to existing cables using tie straps.

9 Unscrew screw (3) from right backrest frame and pull backrest forward/back motor (M27m5, M28m5) out towards rear
- Internal torx set: See "Special Tools" below.

- Bolt, backrest adjustment motor: 5 Nm

10 Install in the reverse order
11 Check seat adjustment for proper function.

Special tools

Torx Bit Set P/N # 000 589 01 10 00: