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Home >> Mercedes Benz >> 2019 >> C300 4Matic, 2D Convertible >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Exterior Trim >> Seats, Bunks, Restraint Systems - 205 Chassis 2 Of 3 >> Testing & Repair >> Remove/Install Multicontour Backrest Air Cushion >> Remove/Install Multicontour Backrest Air Cushion - AR91.25-P-1740LW

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) 

Fig 1: Multicontour Backrest Air Cushion Components Location - Model 205.0 With Code 409; Except Code 555
G14197758Courtesy of MERCEDES-BENZ USA
G14197759Courtesy of MERCEDES-BENZ USA
Topical note Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING 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. SPECIAL TOOL
Dismantling tool
Fig 2
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). SPECIAL TOOL
Dismantling tool
Fig 2
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. IMPORTANT
The air cushions (2, 4) can only be replaced together with the pocket (9), multicontour seat control unit and pump (6).
IMPORTANT
Make sure that all pneumatic lines are routed correctly.
 
10 Install in the reverse order    
Fig 2: Identifying Dismantling Tool (000 589 95 63 00)
G14197760Courtesy of MERCEDES-BENZ USA