Remove/Install Multicontour Backrest Air Cushion - AR91.25-P-1740LW

Model 205.0/1/2, 253 

with code 409 (Left and right front multicontour seat) 

except code 555 (AMG-Performance Seat) 

Model 293 

with code 409 (Left and right front multicontour seat) 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Topical note	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-0003LWE
2	Detach retaining clips (1), remove air cushion (2) and place to one side.	Dismantling tool	Fig 1
3	Release bolts (3) and pull out.
4	Remove air cushions (4) and place to one side.
5	Release decoupling element (5), remove pump (6) and place to one side.
6	Disconnect electrical connectors (7).
7	Remove retaining clip (8).	Dismantling tool	Fig 1
8	Remove pocket (9) with multicontour seat control unit and place to one side.
9	Remove air cushion (2), air cushions (4), pocket (9) with multicontour seat control unit and pump (6) together.	The air cushions (2, 4) can only be replaced together with the pocket (9), multicontour seat control unit and pump (6). Make sure that all pneumatic lines are routed correctly.
10	Install in the reverse order

Fig 1: Identifying Dismantling Tool (000 589 95 63 00)

Courtesy of MERCEDES-BENZ USA