Remove/install seat adjustment drive motor (forward/back) - AR91.29-P-1425V

MODEL 171.4 with CODE (275a) Memory package (driver seat, steering column, mirrors) with CODE (242b) Electrically adjustable front passenger seat with memory 

Fig 1: Identifying Seat Adjustment Drive Motor Components (Forward/Back)

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove left or right front seat (1)		AR91.10-P-1000V
2	Place front seat (1) to the rear on the front seat backrest	When putting down use a suitable protective surface, as otherwise the paint on the backrest frame may be damaged.
3	Remove drive shaft (2)
4	Remove tie straps (3) and push bracket (4) with driver-side front seat adjustment control unit with memory (N32/1) or with passenger side front seat adjustment control unit with memory (N32/2) to one side	Installation:  replace tie straps (3).
5	Detach electrical connector (5) on left front seat fore/aft adjustment motor (M27/1) or on right front seat fore/aft adjustment motor (M28/1)
6	Undo bolts (6) and remove left front seat fore/ aft adjustment motor (M27/1) or right front seat fore/aft adjustment motor (M28/1)
7	Install in the reverse order