Remove/Install Lumbar Support Air Cushion On Front Seat - AR91.25-P-1450FRX

Model 290 

with code 275 (Memory Package (driver's seat, steering column and mirror)) 

with code 555 (AMG-Performance Seat) 

Model 290 

with code 555 (AMG-Performance Seat) 

with code P65 (Ergonomics package) 

Courtesy of MERCEDES-BENZ USA

Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove seat backrest padding.		AR91.10-P-0003FRX
2	Detach retaining clips (1), remove air cushion (2) and place to one side.
3	Unfasten felt tapes (3).
4	Remove lumbar support pneumatic pump (M25/4, M25/5) and place to one side.
5	Remove lumbar support electropneumatic controller unit (N32/23, N32/24) and place to one side.
6	Disconnect electrical connections (4).
7	Remove air cushion (2), lumbar support electropneumatic controller unit (N32/23, N32/24) and lumbar support pneumatic pump (M25/4, M25/5) together.	The air cushion (2), the lumbar support electropneumatic controller unit (N32/23, N32/24) and the lumbar support pneumatic pump (M25/4, M25/5) are one unit and can only be changed together.
8	Install in the reverse order