Remove/Install Seat Inclination Adjustment Motor - AR91.29-P-0005FRX

Model 257, 290 

with code 221 (Electrically adjustable left driver seat) 

Model 257, 290 

with code 222 (Electrically adjustable right driver seat) 

Model 257, 290 

with code 275 (Memory Package (driver's seat, steering column and mirror)) 

Model 290 

with code P65 (Ergonomics package) 

Fig 1: Seat Inclination Adjustment Motor Components Location - Model 290 With Code 221, 222, 275, P65

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Move front seat all the way back and upwards.
2	Switch off ignition and store transmitter key outside of transmission range (min. 2 m).
3	Disconnect electrical connector (5).
4	Unscrew screw (4).	Note the left-hand thread of screw/bolt (4).
		Replace screw (4).
		Screw, seat cushion inclination electric motor linkage to seat cushion frame/seat adjustment unit upper part	*BA91.10-P-1004-01T
5	Unscrew nuts (1).	Nut, bracket for electric motor for seat cushion inclination on seat frame base	*BA91.10-P-1008-01T
6	Remove seat adjustment motor for seat inclination adjustment (M27/9, M28/9) with bracket (3).
7	Remove screws (2) and remove seat adjustment motor for seat inclination adjustment (M27/9, M28/9) from bracket (3).	Only when replacing the seat adjustment motor for seat inclination adjustment (M27/9, M28/9).
		Bolt, electric motor for seat cushion inclination to bracket	*BA91.10-P-1003-01T
8	Install in the reverse order