Electrical Component Overview, Multicontour Seat
Electrical Component Overview, Multicontour Seat
1 Driver seat angle adjustment motor (V243)
• Front passenger side: front passenger seat angle adjustment motor (V244)
• Assembly Overview, refer to => [ Seat Angle Adjustment Motor Assembly Overview ] Seat Angle Adjustment Motor Assembly Overview
• Removing and Installing, refer to => [ Seat Angle Adjustment Motor V243/V244 ] Seat Angle Adjustment Motor V243/V244
2 Driver seat multicontour seat compressor (V439)
• Front passenger side: front passenger multicontour seat compressor (V440)
• Assembly Overview, refer to => [ Multi-Contour Seat Compressor Assembly Overview ] Multi-Contour Seat Compressor Assembly Overview
• Removing and Installing, refer to => [ Multi-Contour Seat Compressors V439/V440 ] Multi-Contour Seat Compressors V439/V440
3 Memory seat/steering column adjustment control head (J136)
• If equipped seat ventilation: seat ventilation and left front seat heating integrated
• Front passenger side: passenger memory seat control module (J521)
• If equipped seat ventilation: seat ventilation and right front seat heating integrated
• Assembly Overview, refer to => [ Memory Seat/Steering Column Adjustment Control Module Assembly Overview ] Memory Seat/Steering Column Adjustment Control Module Assembly Overview
• Removing and Installing, refer to => [ Memory Seat/Steering Column Adjustment Control Module J136/J521 ] Memory Seat/Steering Column Adjustment Control Module J136/J521
4 Driver seat position sensor (G553)
• Front passenger side: front passenger seat position sensor (G554)
• Assembly Overview, refer to => [ Seat Position Sensor Assembly Overview ] Seat Position Sensor Assembly Overview
• Versions with Seat Occupied Sensor for Belt Fastening Detection, Removing and Installing => [ Driver Seat Position Sensor and Front Passenger Seat Position Sensor G553/G554, Vehicles with Seat Occupied Sensor for Belt Fastening Detection ] Drivers and Front Passenger Seat Position Sensors G553/G554, Vehicles With Seat Occupied Sensor For Belt Fastening Detection
5 Driver seat depth adjustment motor (V256)
• Front passenger side: front passenger seat depth adjustment motor (V257)
• Assembly Overview, refer to => [ Seat Depth Adjuster Assembly Overview ] Seat Depth Adjuster Assembly Overview
• Removing and Installing, refer to => [ Depth Adjustment Motor V256/V257 ] Depth Adjustment Motor V256/V257
6 Driver seat forward/back adjustment motor (V28)
• Front passenger side: front passenger seat forward/back adjustment motor (V31)
• Integrated in the lower seat frame; replace if the lower seat frame is faulty. Refer to => [ Seat Forward/Back Adjustment Motors V28 and V31 ] Seat Forward/Back Adjustment Motors V28 and V31
7 Driver seat heating element (Z6) / driver backrest heating element (Z7) / driver seat bolster heater (Z31)
• Front passenger side: front passenger seat heating element (Z8) / front passenger backrest heating element (Z9) / front passenger seat bolster heater (Z33)
• If equipped
• Heating Element, Removing and Installing, refer to => [ Heated Seat Heating Element Z6/Z8 for Multi-contour Seat ] Heated Seat Heating Element Z6/Z8 For Multi-Contour Seat, => [ Bolster Heater Z31/Z33 for Multi-contour Seat ] Bolster Heater Z31/Z33 For Multi-Contour Seat and => [ Heated Backrest Heating Element Z7/Z9 for Multi-contour Seat ] Heated Backrest Heating Element Z7/Z9 For Multi-Contour Seat
8 Left Safety Belt Switch (E24)
• Front passenger side: front passenger seat belt switch (E25)
• Removing and Installing, refer to => [ Front Belt Latch with Belt Switch E24/E25 ] Front Belt Latch With Belt Switch E24/E25
9 Driver backrest adjustment motor (V45)
• Front passenger side: front passenger backrest adjustment motor (V46)
• Assembly Overview, refer to => [ Backrest Adjustment Motor Assembly Overview ] Backrest Adjustment Motor Assembly Overview
• Removing and Installing, refer to => [ Backrest Adjustment Motor V45/V46 ] Backrest Adjustment Motor V45/V46
10 Valve block 1 in the driver seat (N475)
• for massage mat
• Front passenger side: valve block 1 in front passenger seat (N477)
• Assembly Overview, refer to => [ Backrest Cushion with Massage Mat Assembly Overview ] Backrest Cushion With Massage Mat Assembly Overview
• Removing and Installing, refer to => [ Valve Blocks N475/N476/N477/N478 for Massage Mat ] Valve Blocks N475/N476/N477/N478 For Massage Mat
11 Driver side multicontour seat control module (J873)
• Front passenger side: right front multicontour seat control module (J872)
• The connection for the restrictor is deleted on the Original Replacement Part with an integrated check valve and the separate check value must be removed. Refer to the => Parts Catalog
• Removing and Installing, refer to => [ Multi-Contour Seat Control Modules J873/J872 ] Multi-Contour Seat Control Modules J873/J872
12 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 => [ Pyrotechnic, Electrical and Mechanical Restraint System Components, Safety Precautions and Testing Procedures ] Testing and Inspection.
• Assembly Overview, refer to => [ Front Side Airbag Assembly Overview, Multicontour Seat ] Front Side Airbag Assembly Overview, Multicontour Seat
• Removing and Installing, refer to => [ Driver Thorax Airbag Igniter N199 and Front Passenger Thorax Airbag Igniter N200, Multicontour Seat ] Driver Thorax Airbag Igniter N199 and Front Passenger Thorax Airbag Igniter N200, Multicontour Seat
13 Valve block 2 in the driver seat (N476)
• for massage mat
• Front passenger side: valve block 2 in front passenger seat (N478)
• Assembly Overview, refer to => [ Backrest Cushion with Massage Mat Assembly Overview ] Backrest Cushion With Massage Mat Assembly Overview
• Removing and Installing, refer to => [ Valve Blocks N475/N476/N477/N478 for Massage Mat ] Valve Blocks N475/N476/N477/N478 For Massage Mat
14 Driver seat backrest blower fan (V388)
• Front passenger side: front passenger seat backrest blower fan (V389)
• Removing and Installing, refer to => [ Backrest Blower Fan V388/V389 ] Backrest Blower Fan V388/V389
15 Front passenger seat occupied sensor (G128)
• If equipped front passenger seat only
• Removing and Installing, refer to => [ Front Passenger Seat Occupant Sensor G128 ] Front Passenger Seat Occupant Sensor G128
• Country-specific - the multicontour seat and seat heating element are sewn inside the seat cover
• Versions with Seat Occupied Sensor for Passenger Airbag Deactivation, Removing and Installing => [ Service Kit with Front Passenger Seat Occupant Sensor G128 and Passenger Occupant Detection System Control Module J706 ] Service Kit With Front Passenger Seat Occupant Sensor G128 and Passenger Occupant Detection System Control Module J706
16 Left rear footwell lamp (W45)
• Right: right rear footwell lamp (W46)
• If equipped
17 Driver seat cushion 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 Blower Fan V390/V391 ] Seat Cushion Blower Fan V390/V391
18 Driver side massage function button (E670)
• Front passenger side: front passenger side massage function button (E671)
• Removing and Installing, refer to => [ Massage Function Buttons E670/E671 ] Massage Function Buttons E670/E671
19 Driver seat switch module (E663)
• Front passenger side: front passenger seat switch module (E664)
• Assembly Overview, refer to => [ Seat Adjustment Control Head and Switch Module Assembly Overview ] Seat Adjustment Control Head and Switch Module Assembly Overview
• Removing and Installing, refer to => [ Front Seat Switch Module E663/E664 ] Front Seat Switch Module E663/E664
20 Driver seat height adjustment motor (V245)
• Front passenger side: front passenger seat height adjustment motor (V246)
• Assembly Overview, refer to => [ Seat Height Adjustment Motor Assembly Overview ] Seat Height Adjustment Motor Assembly Overview
• Removing and Installing, refer to => [ Seat Height Adjustment Motor V245/V246 ] Seat Height Adjustment Motor V245/V246
21 Driver seat switch module 2 (E667)
• Front passenger side: front passenger seat switch module 2 (E668)
• Assembly Overview, refer to => [ Seat Adjustment Control Head and Switch Module Assembly Overview ] Seat Adjustment Control Head and Switch Module Assembly Overview
• Removing and Installing, refer to => [ Front Seat Switch Module 2 E667/E668 ] Front Seat Switch Module 2 E667/E668