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Home >> Mercedes Benz >> 2016 >> C300 Base >> Repair and Diagnosis >> Body & Frame >> Seats >> Seats, Bunks, Restraint Systems - 205 Chassis (4D Sedan) - 2 Of 2 >> Testing & Repair >> Remove/install seat cushion >> Remove/install seat cushion - AR91.10-P-3310LWA

Remove/install seat cushion - AR91.10-P-3310LWA

Model 205.0/1/2, 253 with code 221 (Electrically adjustable left driver seat) except code 494 (US version) 

Model 205.0/1/2, 253 with code 222 (Electrically adjustable right front seat) except code 494 (US version) 

Model 205.0/1/2, 253 with code 275 (Driver's seat, electrically adjustable with memory function) 

Model 205.0/2, 253 with code 241 (Memory switch for electrically adjustable driver seat, left) 

Model 205.0/2, 253 with code 242 (Front passenger seat, electrically adjustable with memory function) 

Model 205.0/2, 253 with code P65 (Seat comfort package) 

Fig 1: Identifying Seat Cushion Remove/Install Components (1 Of 2)
G10135122Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Seat Cushion Remove/Install Components (2 Of 2)
G10135123Courtesy of MERCEDES-BENZ USA

Shown on front passenger seat with CODE U10 (Automatic front passenger airbag shutoff) 

Fig 3: Identifying Seat Cushion Remove/Install Components - Shown On Front Passenger Seat
G10135124Courtesy of MERCEDES-BENZ USA

Shown except CODE U10 (Automatic front passenger airbag shutoff) 

Fig 4: Identifying Seat Cushion Remove/Install Components (Code 873)
G10135125Courtesy of MERCEDES-BENZ USA

Shown with CODE 873 (Seat heater for driver and front passenger) 

Shown with CODE 876 (Interior lights package) and CODE 873 (Seat heater for driver and front passenger) 

Fig 5: Identifying Seat Cushion Remove/Install Components (Code 876)
G10135126Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Extend thigh support (1) IMPORTANT Dimensions:
a = 4 cm
 
2 Remove driver or front passenger seat   AR91.10-P-1000LW 
3 Remove paneling from seat frame   AR91.10-P-1200LW 
4 Release catch hooks (8) and remove airbag electrical connection (3) Model 205.0/1/2, 253 except code U10 (Automatic front passenger airbag shutoff) When removing seat cushion (2) of front passenger seat.  
5 Release seat belt reminder warning electrical connection (9) using two suitable screwdrivers and remove from airbag electrical connection (3) Model 205.0/1/2, 253 except code U10 (Automatic front passenger airbag shutoff) When removing seat cushion (2) of front passenger seat.
NOTES
Carefully remove seat belt reminder warning electrical connection (9).
Otherwise, damage may occur to the seat belt reminder warning electrical connector (9).
 
6 Disconnect weight sensing system (WSS) electrical connection (4) Model 205.0/2, 253 with code U10 (Automatic front passenger airbag shutoff)
When replacing seat cushion (2) of front passenger seat.
 
7 Remove screw/bolt (5) and remove weight sensing system (WSS) control unit (N110) from bracket Model 205.0/2, 253 with code U10 (Automatic front passenger airbag shutoff)
When replacing seat cushion (2) of front passenger seat.
INSTALLATION IMPORTANT Note correct installation position of corrugated hose and weight sensing system (WSS) control unit (N110).
 
8 Release catches (arrows A) using a suitable screwdriver, detach thigh support (1) and place onto seat cushion (2) INSTALLATION NOTES
Model 205.0/1/2, 253 with code 401 (Seat climate control for driver and front passenger) model 205.0/1/2, 253 with code 873 (Seat heater for driver and front passenger) Ensure that electrical wiring harness (12) is routed correctly.
Otherwise the electrical wiring harness may be sheared off or crushed (12).
INSTALLATION IMPORTANT Ensure hooks (13, 14) are correctly positioned.
 
9 Unhook edge stripping (10) SPECIAL TOOL Extraction hook Figure
10 Remove thigh support (1) Model 205.0/1/2, 253 except code 401 (Seat climate control for driver and front passenger) except code 873 (Seat heater for driver and front passenger)  
11 Expose electrical wiring harness of seat cushion (2) and disconnect its electrical connections INSTALLATION NOTES
Attach electrical wiring harnesses on seat adjustment unit so that unrestricted adjustment of the driver or front passenger seat is possible.
Otherwise the electrical wiring harnesses may be sheared off or crushed.
IMPORTANT The number of electrical connectors and wiring harnesses is dependent on the vehicle equipment.
 
12 Unhook left rear footwell lamp (E17/17) or right rear footwell lamp (E17/18) from seat adjustment unit and hang to one side with lines connected Model 205.0/1/2, 253 with CODE 876 (Interior lights package)  
13 Unhook staple wire (11), using suitable needle nose pliers, from hooks (arrows B) NOTES
Do not bend hooks (arrows B).
Otherwise there is no guarantee that the staple wire (11) will be securely held in place.
 
14 Unhook terminal strips (17) SPECIAL TOOL Extraction hook Figure
15 Unhook cover (15) from hooks (arrows B)    
16 Unhook edge stripping (16) of cover (15) all way round INSTALLATION IMPORTANT Start hooking in the edge stripping (16) at the corners.  
SPECIAL TOOL Extraction hook Figure
17 Place thigh support (1) back onto support Model 205.0/1/2, 253 with code 401 (Seat climate control for driver and front passenger) model 205.0/1/2, 253 with code 873 (Seat heater for driver and front passenger)  
18 Remove seat cushion (2)    
19 Remove sensor mat with weight sensing system (WSS) control unit (N110) from seat adjustment unit Model 205.0/1/2, 253 with code U10 (Automatic front passenger airbag shutoff) When replacing seat cushion (2) of front passenger seat.
INSTALLATION IMPORTANT Remove transport locks at new seat cushion (2), remove sensor mat with weight sensing system (WSS) control unit (N110) from new seat cushion (2) and attach to seat adjustment unit.
Ensure that sensor mat with weight sensing system (WSS) control unit (N110) is correctly seated on seat adjustment unit.
IMPORTANT The seat cushion (2) with weight sensing system (WSS) comprising cover, padding, weight sensing system (WSS) control unit (N110) and sensor mat is delivered precalibrated in the event of repair and may only be completely replaced.
 
20 Remove seat belt warning sensor Model 205.0/1/2, 253 except code U10 (Automatic front passenger airbag shutoff) When replacing seat cushion (2) of front passenger seat.  
AR91.60-P-0720LWA
21 Expose electrical wiring harness (12) and disconnect its electrical connection Model 205.0/1/2, 253 with code 401 (Seat climate control for driver and front passenger) model 205.0/1/2, 253 with code 873 (Seat heater for driver and front passenger)
NOTES
Fix electrical wiring harness (12) on seat adjustment unit so that unrestricted adjustment of the front seat and the thigh support (1) is possible.
Otherwise the electrical wiring harness may be sheared off or crushed (12).
 
22 Remove thigh support (1) Model 205.0/1/2, 253 with code 401 (Seat climate control for driver and front passenger) model 205.0/1/2, 253 with code 873 (Seat heater for driver and front passenger)  
23 Install in the reverse order    
24 Parameterize weight sensing system (WSS) with diagnostic system Model 205.0/1/2, 253 with code U10 (Automatic front passenger airbag shutoff) When removing seat cushion (2) of front passenger seat.  
REFER TO SELF-DIAGNOSTIC SYSTEMS   Model 205.0/1/2 with CODE U10 (Automatic front passenger airbag shutoff)
IMPORTANT Menu item "Initial startup of weight sensors".
AD00.00-P-2000-04B
    SPECIAL TOOL Plates Figure
Fig 6: Identifying Plates (000 589 00 32 00)
G10135120Courtesy of MERCEDES-BENZ USA
Fig 7: Identifying Extraction Hook (140 589 02 33 00)
G07473720Courtesy of MERCEDES-BENZ USA