Comfort Front Seat Assembly Overview
Comfort Front Seat Assembly Overview
• The overview is based on the driver seat. The passenger seat is similar and the components are installed reversed from left to right.
• The illustration does not show the floor covering.
1 Connector station
• Connector routing, refer to => [ Connector Station Connectors ] Connector Station Connectors
• Disconnect the connector. Refer to => [ Connectors, Disconnecting ] Connectors, Disconnecting
2 Front spindle cover
• Quantity: 2
• Clipped in
• Removing and Installing, refer to => [ Seat Rail Covers ] Seat Rail Covers
3 Front cover
• For the seat rail
• Quantity: 2
• Removing and Installing, refer to => [ Seat Rail Covers ] Seat Rail Covers
4 Trim
• Assembly Overview, refer to => [ Sill and Tunnel Side Trim Panels ] Sill and Tunnel Side Trim Panels
• Removing and Installing, refer to => [ Trim ] Trim
5 Belt latch
• Removing and Installing, refer to => [ Belt Latch Anchorage Point ] Belt Latch Anchorage Point
6 Tunnel side trim
• Assembly Overview, refer to => [ Sill and Tunnel Side Trim Panels ] Sill and Tunnel Side Trim Panels
• Removing and Installing, refer to => [ Tunnel Side Trim ] Tunnel Side Trim
7 Front seat - comfort seat
• Removing and Installing, refer to => [ Front Seat ] Front Seat
• Seat frame assembly overview. Refer to => [ Seat Frame Assembly Overview ] Seat Frame Assembly Overview
8 Headrest
• Assembly Overview, refer to => [ Headrest Assembly Overview ] Headrest Assembly Overview
• Removing and Installing, refer to => [ Headrests with Locking Mechanism ] Headrests With Locking Mechanism
9 Backrest cover
• Assembly Overview, refer to => [ Backrest Cover Assembly Overview ] Backrest Cover Assembly Overview
• Removing and Installing, refer to => [ Backrest Cover ] Backrest Cover
10 Sill-side trim
• Assembly Overview, refer to => [ Sill and Tunnel Side Trim Panels ] Sill and Tunnel Side Trim Panels
• Removing and Installing, refer to => [ Sill Side Trim ] Sill Side Trim
11 Rear spindle cover
• Quantity: 2
• connected
• Removing and Installing, refer to => [ Seat Rail Covers ] Seat Rail Covers
12 Rear cover
• For the seat rail
• Quantity: 2
• Removing and Installing, refer to => [ Seat Rail Covers ] Seat Rail Covers
13 Assembly cover
• Clipped
• Removing and Installing, refer to => [ Assembly Cover ] Assembly Cover
14 Actuator
• for the lumbar support
• Assembly Overview, refer to => [ Lumbar Support Adjustment Switch E176/E177 ] Lumbar Support Adjustment Switch E176/E177
• Lumbar Support Adjustment Switch, Removing and Installing => [ Lumbar Support Adjustment Switches E176 and E177 ] Lumbar Support Adjustment Switches E176 and E177
• Four-way lumbar support, removing and installing => [ Four-Way Lumbar Support ] Four-Way Lumbar Support
15 Actuator
• For backrest adjustment
• Assembly Overview, refer to => [ Fore and Aft, Inclination, Height and Backrest Adjustment Switch E418/E421/E424/E425 ] Fore and Aft, Inclination, Height and Backrest Adjustment Switch E418/E421/E424/E425
• Actuator, removing and installing => [ Backrest Adjustment Switch ] Backrest Adjustment Switch
• Switch and Button, Removing and Installing => [ Seat Adjustment Motors E418, E421, E424, E425 ] Seat Adjustment Motors E418, E421, E424, E425
16 Actuator
• For seat forward/back, tilt, and height adjustment
• Assembly Overview, refer to => [ Fore and Aft, Inclination, Height and Backrest Adjustment Switch E418/E421/E424/E425 ] Fore and Aft, Inclination, Height and Backrest Adjustment Switch E418/E421/E424/E425
• Actuator, removing and installing => [ Seat Adjustment Switch ] Seat Adjustment Switch
• Switch and Button, Removing and Installing => [ Seat Adjustment Motors E418, E421, E424, E425 ] Seat Adjustment Motors E418, E421, E424, E425
17 Bolt
• Quantity: 4
• 45 Nm
Electronic Component Overview
1 Seat ventilation control module
• Driver side: Left Front Seat Ventilation Control Module (J800) (integrated in the seat heating function)
• Passenger side: Right Front Seat Ventilation Control Module (J799) (integrated in the seat heating function)
• Assembly Overview, refer to => [ Seat Ventilation Control Module Assembly Overview ] Seat Ventilation Control Module Assembly Overview
• Removing and Installing, refer to => [ Right Front Seat Ventilation Control Module - Seat Heater Function Integrated J799/J800 ] Right Front Seat Ventilation Control Module - Seat Heater Function Integrated J799/J800
2 Seat angle adjustment motor
• Driver side: driver seat angle adjustment motor (V243)
• Front passenger side: front passenger seat angle adjustment motor (V244)
• Assembly Overview, refer to => [ Seat Angle Adjustment Motor V244/V243 Assembly Overview ] Seat Angle Adjustment Motor V244/V243 Assembly Overview
• Removing and Installing, refer to => [ Driver Seat Angle Adjustment Motor V243 or V244 ] Driver Seat Angle Adjustment Motor V243 or V244
3 Memory seat/steering column adjustment control head
Seat with memory function:
• Driver side: memory seat/steering column adjustment control module (J136)
• Front passenger side: passenger memory seat control module (J521)
• Assembly Overview, refer to => [ Memory Seat/Steering Column Adjustment Control Module J136 or Passenger Memory Seat Control Module J521 Assembly Overview ] Memory Seat/Steering Column Adjustment Control Module J136 or Passenger Memory Seat Control Module J521 Assembly Overview
• Removing and Installing, refer to => [ Memory Seat/Steering Column Adjustment Control Module J136 or Passenger Memory Seat Control Module J521 ] Memory Seat/Steering Column Adjustment Control Module J136 or Passenger Memory Seat Control Module J521
4 Front passenger seat occupied sensor (G128)
• Vehicles with
• For the front passenger seat only
• Removing and Installing, refer to => [ Belt Fastening Detection ] Service and Repair
5 Heating element
• Assembly Overview, refer to => [ Seat Heating Element Overview ] Seat Heating Element Overview
• Removing and Installing, refer to => [ Seat Heating Element ] Seat Heating Element
6 Backrest adjustment motor
• Driver side: driver backrest adjustment motor (V45)
• Front passenger side: front passenger backrest adjustment motor (V46)
• Assembly Overview, refer to => [ Front Seat Backrest Adjustment Motors V45/V46 Assembly Overview ] Front Seat Backrest Adjustment Motors V45/V46 Assembly Overview
• Removing and Installing, refer to => [ Driver's Backrest Adjustment Motor V45 or V46 ] Driver's Backrest Adjustment Motor V45 or V46
7 Backrest fan 2
• Driver side: driver seat backrest blower fan 2 (V417)
• Front passenger side: front passenger seat backrest blower fan 2 (V418)
• Assembly Overview, refer to => [ Seat Cushion and Backrest Fan Assembly Overview ] Seat Cushion and Backrest Fan Assembly Overview
• Removing and Installing, refer to => [ Lower Backrest Fan ] Lower Backrest Fan
8 four-way lumbar support
• Cannot be disassembled; available only as a complete unit => Parts Catalog
• Driver side:
• With Driver Seat Lumbar Support Curvature Adjustment Motor (V125)
• With Driver Seat Lumbar Support Height Adjustment Motor (V129)
• Passenger side:
• Passenger seat lumbar support curvature adjustment motor (V126)
• Passenger seat lumbar support height adjustment motor (V130)
• Assembly Overview, refer to => [ Four-Way Lumbar Support Assembly Overview ] Four-Way Lumbar Support Assembly Overview
• Removing and Installing, refer to => [ Four-Way Lumbar Support ] Four-Way Lumbar Support
9 Backrest fan
• Driver side: driver seat backrest blower fan (V388)
• Front passenger side: front passenger seat backrest blower fan (V389)
• Assembly Overview, refer to => [ Seat Cushion and Backrest Fan Assembly Overview ] Seat Cushion and Backrest Fan Assembly Overview
• Removing and Installing, refer to => [ Upper Backrest Fan ] Upper Backrest Fan
10 Front side airbag
• Driver side: with the driver thorax airbag igniter (N199)
• Front passenger side: with the front passenger thorax airbag igniter (N200)
Follow all safety precautions when working on pyrotechnic components. Refer to=> [ Restraint System Components, Safety Precautions and General Information ] Restraint System Components, Safety Precautions and General Information.
• Removing and Installing, refer to => [ Drivers Side and Passenger Side Airbag Igniter N199 and N200, Standard Seat, Power Seat ] Drivers Side and Passenger Side Airbag Igniter N199 and N200, Standard Seat, Power Seat
11 Footwell light
• Vehicles with
12 Seat cushion fan
• Driver side: driver seat cushion blower fan (V390)
• Front passenger side: front passenger seat cushion blower fan (V391)
• Assembly Overview, refer to => [ Seat Cushion Fan Assembly Overview ] Seat Cushion Fan Assembly Overview
• Removing and Installing, refer to => [ Seat Cushion Fan ] Seat Cushion Fan
13 Seat height adjustment motor
• Driver side: driver seat height adjustment motor (V245)
• Front passenger side: front passenger seat height adjustment motor (V246)
• Assembly Overview, refer to => [ Seat Height Adjustment Motor V245/V246 Assembly Overview ] Seat Height Adjustment Motor V245/V246 Assembly Overview
• Removing and Installing, refer to => [ Seat Height Adjustment Motor V245/V246 ] Seat Height Adjustment Motor V245/V246
14 Lumbar support adjustment switch
• Driver side: driver seat lumbar support adjustment switch (E176)
• Front passenger side: front passenger seat lumbar support adjustment switch (E177)
• Assembly Overview, refer to => [ Lumbar Support Adjustment Switch E176/E177 ] Lumbar Support Adjustment Switch E176/E177
• Removing and Installing, refer to => [ Lumbar Support Adjustment Switches E176 and E177 ] Lumbar Support Adjustment Switches E176 and E177
15 Seat adjustment control head
• Driver side: driver seat adjustment control head (E470) with:
• Driver backrest adjustment switch (E96)
• Driver seat angle adjustment switch (E222)
• Driver seat forward/back adjustment switch (E363)
• Driver height adjustment switch (E364)
• Front passenger side: front passenger seat adjustment control head (E471) with:
• Front passenger seat forward/back adjustment switch (E64)
• Front passenger backrest adjustment switch (E98)
• Front passenger seat angle adjustment motor (E334)
• Front passenger seat height adjustment switch (E365)
• Assembly Overview, refer to => [ Fore and Aft, Inclination, Height and Backrest Adjustment Switch E418/E421/E424/E425 ] Fore and Aft, Inclination, Height and Backrest Adjustment Switch E418/E421/E424/E425
• Removing and Installing, refer to => [ Seat Adjustment Motors E418, E421, E424, E425 ] Seat Adjustment Motors E418, E421, E424, E425
16 Seat forward/back adjustment motor
• Driver side: driver seat forward/back adjustment motor (V28)
• Front passenger side: front passenger seat forward/back adjustment motor (V31)
• Assembly Overview, refer to => [ Seat Forward/Back Adjustment Motor V288 Assembly Overview ] Seat Forward/Back Adjustment Motor V288 Assembly Overview
• Removing and Installing, refer to => [ Seat Forward/Back Adjustment Motor V288 ] Seat Forward/Back Adjustment Motor V288