Remove/install front seat backrest padding - AR91.10-P-1090RK

MODEL 231 

As shown on the left front seat with code 432 (Active multicontour seat package) and code 873 (Seat heater for driver and front passenger) 

Fig 1: Front Seat Backrest Padding Remove/Install Components - Shown With Code 432

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove cover (1) on the front seat backrest		AR91.18-P-1820RK
2	Remove left backrest seat ventilation motors (M18/10) and right backrest seat ventilation motors (M18/12) at the front seat backrest	MODEL 231 with CODE 401 (Climatised front seats)	AR91.30-P-1900RK
3	Expose and remove pneumatic line (2)	MODEL 231 with CODE 432 (Active Multicontour Seat package)
4	Unclip driver seat backrest heater electrical connection (X54/37) and front passenger seat backrest heater electrical connection (X54/38) from back shell (3)	MODEL 231 with CODE 873 (Seat heating for driver and front passenger)
5	Disconnect driver seat massage function actuator motor electrical connection (M94x1) and front passenger seat massage function actuator motor electrical connection (M95x1)	MODEL 231 with CODE 432 (Active Multicontour Seat package)
6	Remove padding (4) of the backrest from the back shell (3)	Ensure the clips are seated correctly in the padding. Route electrical and pneumatic lines chafe-free and free of tension.
7	Install in the reverse order