There are 3 stored owner reports matching the engine leading-label group for the 2005 BMW 6 Series in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)WATER STARTED LEAKING FROM THE CAR AND ONCE CHECKED FOUND THAT THE ALUMINUM PIPE UNDER THE INTAKE HAD A CRACKED IN IT AND HAD TO REPLACE THE PIPE WITH A NEW METAL PIPE, WHICH COST ME 1500.00 AND THE BMW MECHANIC STATES MOST OF ALL THESE CARS EXPERIENCE THIS SAME PROBLEM, WHICH CAN LOCK UP YOUR MOTOR OR CRACKED THE HEADS ON IT. *TR
TL*THE CONTACT OWNS A 2005 BMW 645CI. WHILE AT A LIGHT THE VEHICLE SUDDENLY STALLED. THE CONTACT ATTEMPTED TO RESTART THE VEHICLE SEVERAL TIMES BUT WAS UNABLE TO START IT. THE VEHICLE WAS TOWED TO THE DEALER WHERE THE COMPUTER WAS RESET. THE FAILURE CONTINUED TO OCCUR AFTER THE COMPUTER WAS RESET. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 70,800.
THE CAR WAS DRIVEN HOME FROM WORK, APPROXIMATELY 15 MILES, AND WAS PARKED IN THE GARAGE OF OUR HOME. TEN MINUTES LATER IT COMBUSTED AND BEGAN BURNING FROM THE ENGINE COMPARTMENT. IT BURNED TO THE GROUND AND GUTTED OUR HOUSE.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.