NHTSA Complaint #10384560 — 2006 BMW 325I ENGINE AND ENGINE COOLING

Complaint Details

ODI Number	10384560
Vehicle	2006 BMW 325I
Component	ENGINE AND ENGINE COOLING
Date of Incident	May 15, 2010
Date Filed	February 25, 2011
Mileage	25,000 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	CA

Consumer Description

THIS VEHICLE HAS A MAGNESIUM ENGINE BLOCK, AND THEREFORE USES ALUMINUM BOLTS TO FASTEN THE HEAD AND THE VALVE COVER TO THE ENGINE BLOCK. WITH NORMAL DRIVING, MULTIPLE CYLINDER HEAD AND VALVE COVER BOLTS SPONTANEOUSLY SNAP OFF. THIS TYPE OF FAILURE HAS THE POTENTIAL TO DISRUPT THE TIMING CHAIN AND LOSS OF COMPRESSION, LEADING TO CATASTROPHIC ENGINE FAILURE.

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