NHTSA Complaint #11690685 — 2017 BMW 330I

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11690685
Vehicle	2017 BMW 330I
Component	ENGINE
Date of Incident	September 29, 2025
Date Filed	September 30, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NC

Consumer Description

The Oil Filter Housing (OFH), the Coolant/Water Pump, and other plastic lines for the cooling systems are well known to fail with this engine early in their lifetime. My service advisor at BMW said, "these are very common issues for a B46 engine.". The Motor Mounts also are extremely prone to failure due to the use of the Auto Start/Stop feature. This has also been noted by my service advisor at BMW. They commented, "these cars come in often before ever hitting 20k miles and needing replacement. I recommend never using the Auto Start/Stop feature ever again.'

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