2019-2025 BMW 330i/M340i Headlight Leveling Sensor w/ Linkage Front 37146878573
OEM Part #: 37-14-6-878-573 (37146878573)
Actual photo
The exact part you’ll receive — not a stock photo.
$93.49
Side: Front
Used
Donor2021 BMW 330i · 2.0L · 32k miles
✓ Free Same Day Shipping on orders by noon CT
Only 2 in stock — no guaranteed restock
Genuine OEM Used
SKU: 577056
Donor Vehicle: 2021 BMW 330i · 2.0L · 32k miles
2 photos
$93.49
30-Day Returns
Genuine OEM Used
SKU: 586912
Donor Vehicle: 2020 BMW 330i · 2.0L · 42k miles
2 photos
$96.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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A used genuine BMW headlight leveling sensor with linkage, OEM part number 6878573, mounts at the front axle and controls automatic headlight aim based on ride height. When this sensor fails, the headlights may point too low or high, or trigger a dashboard warning. It’s designed for BMW 330i and M340i models equipped with 2.0L or 3.0L turbocharged engines (including MHEV variants).
Specifications
| Fits Vehicle Model | 330i, M340i |
| Fits Vehicle Make | BMW |
| OEM Part No | 37-14-6-878-573 (37146878573) |
| Side | Front |
| Category | Lighting |
Compatible Vehicles
Fits 13 vehicle configurations across 1 make, 2019-2025.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 13 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2025 | BMW | M340i | Sedan | 3.0L l6 Turbo | |
| 2024 | BMW | M340i | Sedan | 3.0L l6 Turbo | |
| 2023 | BMW | M340i | Sedan | 3.0L l6 Turbo | |
| 2021 | BMW | M340i | Sedan | 3.0L l6 Turbo | |
| 2022 | BMW | M340i | Sedan | 3.0L l6 Turbo | |
| 2025 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2024 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2023 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2019 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2022 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2020 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2021 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2020 | BMW | M340i | Sedan | 3.0L l6 Turbo |