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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 Front Seat Lumbar Support Air Cushion - AR91.25-P-1450LWX

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

Model 205, 253 

with code 555 (AMG-Performance Seat) 

Model 213 

with code 275 (Memory Package (Driver's Seat, Steering Column And Mirror)) 

with code 555 (AMG-Performance Seat) 

Model 213 

with code 555 (AMG-Performance Seat) 

with code P65 (Seat Comfort Package) 

Fig 1: Front Seat Lumbar Support Air Cushion Components Location - Model 205 With Code 555
G14197757REMOVINGINSTALLINGIMPORTANTCourtesy 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-0003LWX
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. IMPORTANT
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