Remove/install front seat (seat backrest) adjusting motors - AR91.29-P-1430M

MODELS 220.0 /1 backrest adjustment and head restraint adjustment 

Fig 1: Identifying Front Seat (Seat Backrest) Adjusting Motors Remove/Install Components - Models 220.0 /1

	Remove/Install
1	Remove front seat	up to 31.8.02.	AR91.10-P-1000M
		as of 1.9.02.	AR91.10-P-1000MB
2	Remove seat-back lining from seat backrest		AR91.10-P-1910E
3.1	Remove head restraint up/down motor (M27m4/M28m4)	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)	Screws (8, arrow) and retaining clip (see detail).
6	Disconnect head restraint wiring harness (2) from head restraint up/down motor (M27m4, M28m4)	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)	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	Figure
		Bolt, backrest adjustment motor.	*BA91.29-P-1002-01A
10	Install in the reverse order
11	Check seat adjustment for proper function

SEAT ADJUSTMENT

Number	Designation		Model 220
BA91.29-P-1002-01A	Bolt, backrest adjustment motor	Nm	5

Fig 2: Identifying Torx bit set (000 589 01 10 00)