Seat, front, lumbar for BMW 3 Series G20 Sedan LCI 320dX (2025)
This Seat, front, lumbar technical drawing provides a detailed breakdown of the assembly for the 3 Series G20 Sedan LCI 320dX. It includes part names, part numbers and all associated mounting hardware for vehicles produced between 2025.
| No. | Description | Supp. | Qty | From | Up To | Part Number | Price | Notes | ||
|---|---|---|---|---|---|---|---|---|---|---|
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver |
S487A=Yes S488A=Yes S491A=Yes |
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| 01 | Lumbar support pad with pump | 2 | 52107418338 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver |
S487A=Yes S488A=Yes S491A=No |
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| 01 | Lumbar support pad with pump | 2 | 52107418338 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver |
S487A=Yes S488A=No S491A=No |
|||||||||
| 01 | Lumbar support pad with pump | 2 | 52107418338 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver |
S487A=No S488A=Yes S491A=Yes |
|||||||||
| 01 | Lumbar support pad with pump | 2 | 52107418338 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver |
S487A=No S488A=Yes S491A=No |
|||||||||
| 01 | Lumbar support pad with pump | 2 | 52107418338 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver |
S487A=No S488A=No S491A=Yes |
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| 02 | Backrest width adjuster with valve | 2 | 52107418339 | Shop at ECS Tuning | ||||||
| For vehicles with M Sports seats |
S711A=Yes |
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| 03 | Backrest width adjustment | 2 | 52107468673 | NoS | Shop at ECS Tuning | |||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=Yes S488A=Yes S491A=Yes S711A=Yes |
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| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=Yes S488A=Yes S491A=Yes S711A=No |
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| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=Yes S488A=Yes S491A=No S711A=Yes |
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| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=Yes S488A=No S491A=Yes S711A=Yes |
|||||||||
| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=Yes S488A=No S491A=Yes S711A=No |
|||||||||
| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=Yes S488A=No S491A=No S711A=Yes |
|||||||||
| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=No S488A=Yes S491A=Yes S711A=Yes |
|||||||||
| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=No S488A=Yes S491A=Yes S711A=No |
|||||||||
| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=No S488A=Yes S491A=No S711A=Yes |
|||||||||
| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=No S488A=No S491A=Yes S711A=Yes |
|||||||||
| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| For vehicles with Lumbar support driver and Lumbar support, driver and passenger and Backrest width adjustment driver and M Sports seats |
S487A=No S488A=No S491A=No S711A=Yes |
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| 03 | Backrest width adjustment | 2 | 52107418340 | Shop at ECS Tuning | ||||||
| 04 | Supporting plate, left | 2 | 52107431796 | Shop at ECS Tuning | ||||||
| 04 | Supporting plate, right | 2 | 52107468674 | Shop at ECS Tuning | ||||||
| 07 | Fillister head screw with collar | 8 | 07147187828 | $0.38 | Shop at ECS Tuning | |||||
Notes
- NoS = No Stock (Part centrally not stocked)
See Also
Frequently Asked Questions
- What assembly is shown in the BMW 3 Series G20 Sedan LCI 320dX Seat, front, lumbar?
- This technical diagram illustrates the Seat, front, lumbar within the Seats group for the 3 Series G20 Sedan LCI 320dX produced during 2025. It provides a detailed exploded view of the components, identifying key parts such as the Lumbar support pad with pump (Part #52107418338).
- Which models use the hardware listed in this Seat, front, lumbar?
- The hardware and components featured in the Seat, front, lumbar are specific to the 3 Series G20 Sedan LCI 320dX produced during 2025. These technical specifications ensure that parts like the Lumbar support pad with pump (52107418338) are correctly matched to the vehicle's structural and mechanical requirements.
- How do I find specific parts within the Seat, front, lumbar assembly?
- Each item in the Seat, front, lumbar corresponds to the numbered list below the illustration. For the 3 Series G20 Sedan LCI 320dX, you can identify the Lumbar support pad with pump by locating its position on the schematic, which then links to the official BMW part number 52107418338 for the Seats section.