The 2004 BMW 6 Series has 4 NHTSA recall campaigns affecting an estimated 577,668 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 3 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
BMW IS RECALLING CERTAIN MODEL YEAR 2004-2010 5-SERIES, MODEL YEAR 2004-2010 6-SERIES, MODEL YEAR 2006-2010 M5, AND MODEL YEAR 2007-2010 M6 VEHICLES. THE INSULATED BULKHEAD CONNECTOR FOR THE POSITIVE BATTERY CABLE MAY HAVE BEEN INCORRECTLY ATTACHED TO THE TRUNK FLOOR PANEL, WHICH CAN LEAD TO A LOOSENING OF THE BOLT…
Consequence
OVERHEATING COULD LEAD TO A FIRE, EVEN WHILE THE VEHICLE IS NOT IN USE. AS A PRECAUTION, OWNERS ARE ADVISED TO PARK OUTSIDE UNTIL THE REMEDY HAS BEEN MADE.
Remedy
BMW WILL NOTIFY OWNERS, AND DEALERS WILL INSPECT AND SECURE THE BATTERY BOLT CABLE CONNECTION AS NECESSARY, FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 30, 2012. OWNERS MAY CONTACT BMW CUSTOMER RELATIONS AND SERVICES AT 1-800-525-7417.
SERVICE BRAKES, HYDRAULIC10V4460002010-10-01198,352 affected
Defect
BMW IS RECALLING CERTAIN MODEL YEAR 2004-2010 5-SERIES, 6-SERIES, AND MODEL YEAR 2002-2008 7-SERIES VEHICLES. A CHECK VALVE OF THE BRAKE VACUUM PUMP MAY LEAK A SMALL AMOUNT OF LUBRICATING OIL. OVER TIME THIS COULD RESULT IN CONTAMINATION OF THE BRAKE BOOSTER.
Consequence
POWER ASSIST BRAKING PERFORMANCE COULD BE ADVERSELY AFFECTED. IN EXTREME CASES THERE COULD BE A COMPLETE LOSS OF POWER ASSIST BRAKING. AN UNEXPECTED REDUCTION OR LOSS IN POWER BRAKING ASSIST MAY INCREASE THE RISK OF A CRASH.
Remedy
BMW WILL NOTIFY OWNERS AND DEALERS WILL REPAIR THE VEHICLES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON NOVEMBER 24, 2010. OWNERS MAY CONTACT BMW AT 1-800-525-7417.
POWER TRAIN04V3440002004-07-144,102 affected
Defect
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 8 AND 12 CYLINDER ENGINES, THE DIGITAL ENGINE MANAGEMENT CONTROL (EMC) UNITS WERE NOT PRODUCED ACCORDING TO SPECIFICATIONS.
Consequence
AS A RESULT, ENGINE STALLING WILL OCCUR AFTER A SHORT PERIOD OF OPERATION. THE VEHICLE MAY NOT BE ABLE TO RESTART. ALSO, A LOSS OF POWER STEERING AND, AFTER REPEATED ACTUATION OF THE BRAKE PEDAL, A LOSS OF BRAKE POWER ASSIST WILL OCCUR. THESE CONDITIONS COULD RESULT IN A VEHICLE CRASH.
Remedy
DEALERS WILL INSTALL A NEW DIGITAL ENGINE MANAGEMENT CONTROL UNIT. THE RECALL BEGAN ON JULY 16, 2004. OWNERS SHOULD CONTACT BMW AT 1-800-831-1117.
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 8-CYLINDER ENGINES, A CIRCULAR RETENTION CLIP AT THE QUICK-RELEASE COUPLING ALONG THE FUEL SUPPLY LINE WAS INADVERTENTLY NOT INSTALLED.
Consequence
IN THE EVENT OF A SEVERE FRONTAL CRASH, THE QUICK-RELEASE COUPLING COULD SEPARATE CAUSING FUEL LEAKAGE. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.
Remedy
DEALERS WILL INSTALL A CIRCULAR RETENTION CLIP AT THE QUICK-RELEASE COUPLING ALONG THE FUEL SUPPLY LINE. THE RECALL BEGAN ON JULY 5, 2004. OWNERS SHOULD CONTACT BMW AT 1-800-831-1117.
Complaints by component
ELECTRICAL SYSTEM
1
ENGINE AND ENGINE COOLING:ENGINE
1
POWER TRAIN:AUTOMATIC TRANSMISSION
1
Total complaints3
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Bmw 645ci: transmission surges between speeds of 30-40mph while applying constant throttle. *tr”
“Vehicle stalls and dies while idling or on turning. Vehicle restarts after stall, but all steering is lost until restarted. Bmw has replaced the main computer control board twice (dme). Stalling is still evident. Total number of known stalls - 4. Also, based on postings on http://bimmer.…”
“2004 bmw 645: while driving 20 mph vehicle stalled and consumer was able to restart the vehicle. Consumer took the vehicle to dealership for inspection. Dealership was unable to duplicate problem. The engine stalling problem recurred and the vehicle was taken back to the dealer for inspection.…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2004 BMW 6 Series as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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