NHTSA Complaint #10344897 — 2005 BMW M3 ENGINE AND ENGINE COOLING:ENGINE

Complaint Details

ODI Number	10344897
Vehicle	2005 BMW M3
Component	ENGINE AND ENGINE COOLING:ENGINE
Date of Incident	June 8, 2009
Date Filed	July 23, 2010
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	TX

Consumer Description

THE VANOS SYSTEM IN THE 2001-2006 BMW M3 IS A COMMON PART THAT IS PRONE TO FAILURE. THE INTAKE AND EXHAUST BOLTS OF THE CAM GEAR CAN SHEER OFF DUE TO IMPROPER TORQUING FROM THE FACTORY AND IMPROPER HARDNESS OF THE BOLTS. THE DRIVE SHAFT OF THE VANOS SYSTEM IS ALSO WEAK. IF THE VANOS SYSTEM FAILS, THE CAM GEAR CAN SHEER OFF, AND PARTS CAN GET INTO THE ENGINE AND CAUSE A CATASTROPHIC FAILURE. SOMETIMES, PARTS CAN BREAK OFF INTO THE HOOD OF THE CAR. THIS SYSTEM FAILS WITHOUT RHYME OR REASON, SEEMINGLY AT RANDOM. MANY OWNERS HAVE HAD PROBLEMS WITH THE VANOS SYSTEM. PLEASE OBSERVE THE FOLLOWING LINKS: HTTP://WWW.M3FORUM.NET/M3FORUM/SHOWTHREAD.PHP?T=327372 HTTP://WWW.M3FORUM.NET/M3FORUM/SHOWTHREAD.PHP?T=321494 HTTP://WWW.M3FORUM.NET/M3FORUM/SHOWTHREAD.PHP?T=212573 A SIMPLE GOOGLE SEARCH WILL YIELD MORE RESULTS. SOMETIMES REPLACING THE BOLTS ON THE INTAKE AND EXHAUST CAMSHAFT WITH HARDENED BOLTS WILL SOMETIMES FIX THE ISSUE, BUT OTHER TIMES, THE PROBLEM SEEMS RANDOM. *TR

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