Remove and install handle for seat backrest adjustment - AR91.10-P-3470MCC

MODEL 451.3/4 

Fig 1: Identifying Handle For Seat Backrest Adjustment Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Removing
	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
1	Insert assembly wedge (3) between seat frame (2) and handle (1), pry off handle (1) from adjusting shaft of backrest adjustment and remove	The handle (1) is destroyed during removal. Pay attention to installation position of handle (1).
			Fig 2
2	Remove spring clip (4) from adjusting shaft of backrest adjustment using suitable pliers	Replace spring clip (4). Pay attention to installation position of spring clip (4).
	Install
3	Clip spring clip (4) into catch hooks (5) at handle (1) corresponding to its locking direction
4	Position new handle (1) on adjusting shaft of backrest adjustment and clip in	The handle (1) can only be installed when the spring clip (4) is inserted correctly. The lever of the handle (1) must run downwards (arrow) parallel to the seat frame (2).
5	Perform function test of backrest adjustment

Fig 2: Identifying Mounting Wedge (110 589 03 59 00)

Courtesy of MERCEDES-BENZ USA