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OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Crankshaft Position Sensor
This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Wiki page
3L I6 Naturally Aspirated N52B30 (240hp).
Quick reference
Verify interchange with specific model year and engine variant.
Check for JDM vs USDM differences if applicable.
Mid-cycle changes may affect compatibility; always confirm part numbers.
Context
The crankshaft position sensor is a vital component in the BMW 528i, specifically for the 3L I6 N52B30 engine. Common failures may arise from oil contamination or electrical issues, leading to poor performance or misfires. When inspecting the sensor, look for physical damage, corrosion on the connector, and ensure that the mounting bracket is intact. The OEM part number 12137556829 is the go-to replacement for this sensor, while 12137556830 can serve as an alternative, but it’s essential to verify compatibility. Installation is straightforward; ensure the engine is off and cool before removal, and use a torque wrench to secure the new sensor properly. If sourcing from a junkyard, seek models from 2006-2011 that feature the N52B30 engine to ensure proper fitment.
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Confirmed fitment
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 2011 | BMW | 528i | 3L I6 Naturally Aspirated N52B30 (240hp) | 80% |
Available parts

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