Removing and installing rear seat backrest lumbar support control valve - AR91.12-P-1670M

MODELS 220.0/1 with CODE (223b) Electrically adjustable rear bench seat 

Fig 1: Identifying Rear Seat Backrest Lumbar Support Control Valve Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/Install
1	Unclip control valve (1) from rear seat paneling using assembly wedge	Installation wedge	Figure
2	Remove pneumatic lines (2)	Pay attention to line routing.
3	Install in the reverse order
4	Perform lumbar support function check

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

Courtesy of MERCEDES-BENZ USA