IllustrationBMW 645CI: TRANSMISSION SURGES BETWEEN SPEEDS OF 30-40MPH WHILE APPLYING CONSTANT THROTTLE. *TR
2004 BMW 6 Series
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all 6 Series years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 3 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
3 reportsVEHICLE 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. ROADFLY.ORG/BMW/FORUMS/E63/ IT APPEA…
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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. ROADFLY.ORG/BMW/FORUMS/E63/ IT APPEARS OTHERS HAVE EXPERIENCED PROBLEMS WITH HARDWARE/SOFTWARE ON THIS MAKE, BUT PERHAPS NOT TO THE SAME SAFETY LEVEL AS MINE. ALMOST IDENTICAL COMPLAINT ON FILE WITH YOU:MAKE: BMW MODEL: 6 SERIES YEAR: 2004 COMPLAINT NUMBER: 10091708 SUMMARY: 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. AGAIN, DEALERSHIP COULD NOT UNCOVER ANY DEFECT OR MALFUNCTION AND THE VEHICLE IS OPERATING AS DESIGNED. *AK
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. AGAIN, DEALERSHIP COULD NOT …
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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. AGAIN, DEALERSHIP COULD NOT UNCOVER ANY DEFECT OR MALFUNCTION AND THE VEHICLE IS OPERATING AS DESIGNED. *AK (VEHICLE BUILD DATE: MAY 4, 2004 - EXCLUDED FROM SAFETY RECALL 04V-344, WHICH HAS A BUILD DATE RANGE BEGINNING WITH MAY 12, 2004) *MJJ
Official recalls
412V126000 · Electrical SYSTEM:12V/24V/48V Battery:cables
Mar 26, 2012
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 CONNECTION. AS IT LOOSENS, AN INCREASE IN ELECTRICAL RESISTANCE AT THIS CABLE CONNECTION IS POSSIBLE AND COULD CAUSE THE CABLE CONNECTION TO OVERHEAT.
Consequence & remedy
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.
10V446000 · Service Brakes, Hydraulic:power Assist:vacuum
Oct 1, 2010
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 & remedy
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.
04V344000 · Power Train:automatic Transmission:control Module (tcm/pcm/tecm)
Jul 14, 2004
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 & remedy
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.
04V303000 · Fuel System, Gasoline
Jun 23, 2004
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 & remedy
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.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.