10.0

really awful
Typical Repair Cost:
No data
Average Mileage:
150,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. weld nut to sprocket (1 reports)
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problem #1

Aug 152019

330 CI 3.0L I6 (M54b30)

  • Manual transmission
  • 150,000 miles

This issue has been seen on many BMW i6 engines.

The oil pump sprocket nut backs off, then there is no oil pressure, and the result is complete engine failure. I had to replace the engine. Before installing the new engine I welded the nut to the sprocket to stop it happening to the replacement engine.

- Alex M., Asheville, NC, US

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