Remove/Install Front Seat Frame - AR91.10-S-5319E

Model 447, 448 

with code SF1 (Driver's seat electrically adjustable) 

Model 447, 448 

with code SF2 (Electrically adjustable co-driver's seat) 

Shown on front seat of model 447 with code YF7 (Fire extinguisher 1 Kg) 

Courtesy of MERCEDES-BENZ USA

Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on carrying out repair work in the vehicle interior		AH68.00-D-0001-01KOS
	Remove/install
1	Remove left or right front seat.		AR91.10-S-1000E
2	Remove left and right trim at side from seat frame (2).		AR91.10-S-1200EE
3	Remove seat backrest from seat frame (2) and place to one side with connected electrical wiring harness.	Backrest to seat frame	*BA91.10-Z-1002-01KOJ
4	Unclip and remove trim from both seat adjustment rails.
5	Remove seat belt buckle on front seat from seat frame (2).		AR91.40-S-1510E
6	Remove fire extinguisher (16) from fire extinguisher holder (17).	Model 447 with code YF7 (Fire extinguisher 1 kg) When removing seat frame (2) from driver seat.
7	Remove fire extinguisher holder (17) from seat cushion frame (18).	When removing seat frame (2) from driver seat. Model 447 with code YF7 (Fire extinguisher 1 kg)	AR86.10-S-5110E
8	Remove seat cushion padding from front seat.	Model 447 except code SA8 (Comfort Package seat), model 448.7	AR91.10-S-5040E
		Model 447 with code SA8 (Comfort Package seat); model 448.8	AR91.10-S-5040EE
9	Disconnect electrical connector (19) from seat fore/aft adjustment seat adjustment motor, driver seat (M27/1) or seat fore/aft adjustment seat adjustment motor, front passenger seat (M28/1).
10	Disconnect electrical connector (20) from height adjustment seat adjustment motor, driver seat (M27/2) or height adjustment seat adjustment motor, front passenger seat (M28/2).
11	Disconnect electrical connector (21) from inclination adjustment seat adjustment motor, driver seat (M27/3) or inclination adjustment seat adjustment motor, front passenger seat (M28/3).
12	Disconnect electrical connectors (22).	The number of electrical connectors (22) varies depending on equipment installed.
13	Remove driver seat adjustment control unit with memory (N32/5) or front passenger seat adjustment control unit with memory (N32/6) from seat frame (2).
14	Remove all electric lines from seat frame (2).	Observe installation position of electric leads Otherwise, wrongly routed electrical lines may become trapped when the front seat is adjusted. The number of electrical lines varies depending on the equipment installed.
15	Install in the reverse order.