Remove/install seat adjuster at rear seat - AR91.12-P-1520SX

MODEL 221.0 with CODE (223) Rear bench seat with electrically adjustable outer seats with PRE-SAFE positioning function for outer seats and outer head restraints 

MODEL 221.1 with CODE (223) Rear bench seat with electrically adjustable outer seats with PRE-SAFE positioning function for outer seats and outer head restraints 

MODEL 221.1 with CODE (224) Rear individual seat design except CODE (Z07) Top protection 

Shown on the right seat adjuster 

Fig 1: Identifying Right Rear Seat Adjuster Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove left or right rear seat cushion		AR91.12-P-1020SX
2	Remove tensioning rubbers (2)
3	Push seat adjuster (1) back until the bolts (3, 4) are accessible
4	Switch ignition off and remove transmitter key or Keyless Go start/stop button from EIS [EZS] control unit	Keyless Go start/stop button only for vehicles with code (889) Keyless Go.
5	Unscrew screws (3, 4, 5)		*BA91.12-P-1001-03H
			*BA91.12-P-1002-03H
6	Lift seat adjuster (1) and disconnect electrical connector from left rear seat fore/aft adjustment motor (M18/17) or right rear seat fore/aft adjustment motor (M18/18) and electrical connector from left rear seat cushion inclination adjustment motor (M18/19) or right rear seat cushion inclination adjustment motor (M18/20)
7	Remove seat adjuster (1) from vehicle
8	Install in the reverse order