Remove/install backrest motor for front seat - AR91.29-P-1431GH

MODEL 163.113 /136 /154 /157 /172 with CODE (221b) Electrically adjustable driver and passenger seat 

MODEL 163.128/174/175 

Fig 1: Identifying Backrest Motor For Front Seat Components

	Remove/install
1	Remove front seat backrest		AR91.10-P-1060GH
2	Remove backrest shell (2) from the front seat backrest		AR91.10-P-1915GH
3	Pull the insert rails on the front seat backrest cover (1) off the front seat backrest frame (3)	Relieve the load on the front seat backrest cover by pressing down the front seat backrest frame.
4	Pull off lock washer (4) of the adjusting shaft (7) on one side	Installation:  Replace lock washer.
5	Unscrew nut (6) on backrest forward/back motor (M25m5)	Installation:  Replace self-locking nut.
6	Remove damper rubber (5)
7	Pull out adjusting shaft (7) sideways
8	Disconnect backrest motor connector (X54/20) from backrest forward/back motor (M25m5)
9	Remove backrest forward/back motor (M25m5)	Lift up front seat backrest cushion approx. 10 cm from the front seat backrest frame.
10	Install in the reverse order