Remove/install front seat height adjustment drive motor (rear, raise/lower) - AR91.29-P-1423V

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 Front Seat Height Adjustment Drive Motor Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove left or right front seat (1)		AR91.10-P-1000V
2	Remove paneling on front seat frame		AR91.10-P-1200V
3	Place front seat (1) to one side on the front seat backrest	When putting down use a suitable protective surface, as otherwise the paint on the backrest frame may be damaged.
4	Remove tie straps (2) and detach electrical connectors (3) on left rear seat height adjustment motor (M27/2) or right rear seat height adjustment motor (M28/2)	Installation:  Replace tie strap (2).
5	Undo bolts (4) and remove left rear seat height adjustment motor (M27/2) or right rear seat height adjustment motor (M28/2)
6	Install in the reverse order