Remove/install rear seat backrest - AR91.12-P-1620SX

MODEL 221.0 with CODE (223) Rear bench seat with electrically adjustable outer seats with PRE-SAFE positioning function for outer seats and outer head restraints 

MODEL 221.1 with CODE (223) Rear bench seat with electrically adjustable outer seats with PRE-SAFE positioning function for outer seats and outer head restraints 

MODEL 221.1 with CODE (224) Rear individual seat design except CODE (Z07) Top protection 

Fig 1: Identifying Rear Seat Backrest Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Shown on right rear seat backrest (1) 

Fig 2: Identifying Rear Seat Backrest Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

Shown on right rear seat backrest (1) 

	Remove/install
1	Remove left or rear seat cushion		AR91.12-P-1020SX
2	Fold down all rear head restraints
3	Release upholstery above center armrest (3) on the release levers (2) (arrows) and remove upward	Release the release lever (2) toward the front.
4	Remove rear door sill molding.		AR68.30-P-4100SX
5	Remove rear passenger compartment side trim panel		AR68.30-P-4780SX
6	Remove bolts (4)		*BA91.12-P-1002-03H
7	Unscrew bolts (5) from brackets (6)		*BA91.12-P-1003-03H
8	Slide rear seat backrest (1) upwards and remove
9	Disconnect electrical connector from left rear backrest angle adjustment motor (M27/11) or from right rear backrest angle adjustment motor (M28/11)
10.1	Disconnect left rear multicontour backrest connector (X54/33) or right rear multicontour backrest connector (X54/34) and pneumatic line (8)	On vehicles with code (406) Rear multicontour seats
11.1	Disconnect electrical connector (9).	For vehicles with code (402) Rear deluxe seats, incl. seat heating and seat ventilation
12	Remove rear seat backrest (1)
13	Install in the reverse order