Remove/Install Seat Height Adjustment Motor - AR91.29-P-0007FRX

Model 257, 290 

Fig 1: Seat Height Adjustment Motor Components Location - Model 290

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	Remove front seat, and set aside on a suitable base.		AR91.10-P-1000FR
		To enable the seat adjustment motor for seat height adjustment (M27/10, M28/10) to be removed the front seat must not be moved all the way up.
2	Disconnect electrical connector (5).
3	Remove retaining ring (1).	Check retaining ring (1).
		If there is a problem, ↓ Replace retaining ring (1).
4	Remove screw (3).	Note left-hand thread of screw/bolt (3). Bolt (3) is shorter than the bolts (2).
		Replace screw/bolt (3).
		Bolt, electric motor for seat height adjustment to seat adjustment unit	*BA91.10-P-1005-01T
5	Unscrew bolts (2).	Replace screw/bolts (2).
		Bolt, electric motor for seat height adjustment to seat adjustment unit	*BA91.10-P-1005-01T
6	Remove seat adjustment motor for seat height adjustment (M27/10, M28/10).
7	Install in the reverse order

FRONT SEATS

Number	Designation		Model 257	Model 290
BA91.10-P-1005-01T	Bolt, electric motor for seat height adjustment to seat adjustment unit	Nm	4	4