Remove/install seat cushion frame - AR91.10-P-3334MCU

MODEL 451.3/4 

Driver seat 

Shown on driver seat with code (S17) Seat heater (FFO) 

Fig 1: Identifying Seat Cushion Frame Remove/Install Components - Shown On Driver Seat With Code (S17) Seat Heater (FFO)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  caused by backrest suddenly folding forward if release lever is accidentally operated during inspection and repair work	When working on the seat, be careful not to accidentally release the backrest mechanism allowing the seat to fold forward. Keep body parts clear of the backrest travel area.	AS91.00-Z-0005-01V
	Risk of injury  caused by performing testing or repair work on airbag or emergency tensioning retractor units.	Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.	AS91.00-Z-0001-01A
1	Remove driver seat and carefully place on a suitable surface with backrest (6)		AR91.10-P-1010MCU
2	Unclip plug (1) on seat-cushion frame (4)	The number of connectors (1) depends on the vehicle equipment.
3	Remove cable ties (8) and detach wiring harnesses (2) from holders (3) and expose them	The number of wiring harnesses (2) depends on the vehicle equipment.
4	Place driver seat on guide rails
5	Remove driver seat cushion with seat cushion cover	Do not remove the seat cushion cover from driver seat cushion.	AR91.10-P-1070MCU
6	Fold backrest (6) forward
7	Remove bolts (5) of backrest (6)	Position backrest (6) on seat-cushion frame (4) and turn bolts (5) all the way in. Tighten the bolts (5) opposite the seat belt buckle, starting at the front. Move backrest (6) to its rearmost position and lock in place. Tighten bolts (5) in area of seat belt buckle, starting from rear. While doing so, press the backrest (6) backwards.
			*BA91.10-P-1002-01P
8	Remove backrest (6)
9	Remove bracket (3) on seat-cushion frame (4)	When replacing seat-cushion frame (4).
10	Remove edge guards (7) on seat-cushion frame (4)	When replacing seat-cushion frame (4).
11	Install in the reverse order