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2004 BMW 645CI

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

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: 7 of 11 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.

  • Air Bags. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Seat Belts. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 3 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

11 reports
Mileage unknown · Mar 26, 2024
Wheels

My Bmw got impounded illegally from my location where I rent commercial space and there is no signs saying car wheel be parked there at 12 at night this was an illegal tow by tow guys 3823 losse rd 702 598 1630 I payed $474.64 to get my car out impound

NHTSA ODI #11579571

Mileage unknown · Sep 6, 2021
Electrical SystemEngineSeat Belts

The idrive system in my car continues to cut on and off, this eventually caused my car to shut off on me two times while in traffic with no warning or indication of the shut off. The sensor alert continuously goes off for everything in the car. I took my car to the BMW dealership in Huntsville Alabama, they had my car for almost…

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The idrive system in my car continues to cut on and off, this eventually caused my car to shut off on me two times while in traffic with no warning or indication of the shut off. The sensor alert continuously goes off for everything in the car. I took my car to the BMW dealership in Huntsville Alabama, they had my car for almost a month and could not find the issue with the drive or anything the sensors were notifying me of. The system constantly says my car is overheating, but I just got the radiator hose fixed and the dealership checked it for leaks while they had it and they did not see any other leaks or any other issues causing it to overhear. I researched this issue on a BMW form and I see this is a common issue with the electrical system. This issue is very alarming to me because the sensors do not work properly so I wouldn’t know what is really wrong with the car and with all the electrical issues I am afraid the car might catch on fire. I can’t believe this problem is so common and he has not been recalled due to the safety and the devastating results it could cause it’s gone unnoticed for so long. I would hate for someone to lose their life, regarding this faulty issue in this car; these cars are not cheap no matter how old they are so I feel like BMW should stand behind their product and stop selling us faulty unsafe vehicles. We pay good money for these cars, this issue really needs to be fixed. I have a video of the iDrive system cutting on and off with the sensors alerting but this does not give me the option to upload a video. In addition the seatbelt will not retract in this car so it is not able to be worn properly. Also the engine seems like it is revving up sometime as if it wants to takeoff on its own. I have only experienced this issue a couple of times but not as much time as the iDrive issue mention above. Please assist in anyway you can I would really appreciate it. Have a great day!

NHTSA ODI #11431834

Mileage unknown · Aug 6, 2018
Air BagsSeats

PASSENGER SEAT OC3 OCCUPANCY MAT NOT WORKING-IT SHOWS A FAULT CODE- I TOOK IT TO BIRMINGHAM BMW AND WAS TOLD I HAVE TO GET A NEW BMW BATTERY AND BATTERY CABLE.THEY CHARGED ME $ 120 TO DIAGNOSE THIS PROBLEM BUT DID NOTHING TO FIX THE OC3 MAT THAT IS FAULTING.I HAVE CHECKED ON LINE AND THIS DOES NOTHING.

NHTSA ODI #11118144

75,000 miles · May 3, 2017
Electronic Stability Control (esc)Seat BeltsSteering

ACTIVE STEERING MALFUNCTION, AIRBAGS LIGHTS, STABLE CONTROLL STEERING WHEEL IS COCKED ABOUT HALF TURN TO DRIVE STREIGHT.

NHTSA ODI #10983391

61,000 miles · Mar 27, 2015
Air Bags

I HAVE WARNING LIGHT WHEN I TURN ON MY CAR THAT THE PASSENGER RESTRAINT AND AIRBAG IS INACTIVE AND THIS SHOULD BE A RECALL... THIS IS SAFETY NOT A LUXURY OPTION... BMW ADVISED ME THAT IT WAS SOME SENSOR AND I ASKED IF I WAS IN A CAR ACCIDENT WILL THE AIRBAGS DEPLOY THEY SAID THERE IS A HIGH CHANCE IT WOULD NOT AND ALSO THE SEAT …

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I HAVE WARNING LIGHT WHEN I TURN ON MY CAR THAT THE PASSENGER RESTRAINT AND AIRBAG IS INACTIVE AND THIS SHOULD BE A RECALL... THIS IS SAFETY NOT A LUXURY OPTION... BMW ADVISED ME THAT IT WAS SOME SENSOR AND I ASKED IF I WAS IN A CAR ACCIDENT WILL THE AIRBAGS DEPLOY THEY SAID THERE IS A HIGH CHANCE IT WOULD NOT AND ALSO THE SEAT BELT COULD FAIL AS WELL... I SEEN OTHER PEOPLE WITH THE SAME COMPLAINTS!! THIS IS A SAFETY FEATURE NOT A OPTION!! PLEASE LOOK INTO IT!! BEING A CONVERTIBLE AND NO AIRBAGS IN A ACCIDENT IS A DEATH WAITING TO HAPPEN!!! *TR

NHTSA ODI #10702104

115,587 miles · Nov 19, 2014
Air Bags

TL* THE CONTACT OWNS A 2004 BMW 645CI. WHEN THE VEHICLE WAS STARTED, THE AIR BAG WARNING LIGHT ILLUMINATED. THE DEALER STATED THAT THE VEHICLE WAS OPERATING AS DESIGNED. THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 115,587.

NHTSA ODI #10659272

56,555 miles · Jun 21, 2014
Air BagsElectrical SystemSeat Belts

I HAVE THE SAME PROBLEM IN WHICH THIS IS THE NUMBER YOU HAVE PROVIDED BUT NOT INCLUDING MY YR. IT WAS ONLY FOR 2006 MODELS AND I HAVE A 2004 BUT SAME EXACT PROBLEMS. I HAVE READ AND SEEN OTHERS WITH THE SAME PROBLEM. SOME DEALERSHIPS HONORED THE RECALL OR "SERVICE OFFER" BUT THEY WILL NOT FOR ME AND THIS IS A SAFETY ISSUE NOT A …

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I HAVE THE SAME PROBLEM IN WHICH THIS IS THE NUMBER YOU HAVE PROVIDED BUT NOT INCLUDING MY YR. IT WAS ONLY FOR 2006 MODELS AND I HAVE A 2004 BUT SAME EXACT PROBLEMS. I HAVE READ AND SEEN OTHERS WITH THE SAME PROBLEM. SOME DEALERSHIPS HONORED THE RECALL OR "SERVICE OFFER" BUT THEY WILL NOT FOR ME AND THIS IS A SAFETY ISSUE NOT A LUXURY OPTION. NHTSA ACTION NUMBER : EA08001 NHTSA RECALL CAMPAIGN NUMBER : 08V384000. *TR

NHTSA ODI #10604959

37,260 miles · Dec 2, 2013
Air BagsSeat BeltsSeats

PASSENGER RESTRAINT SYSTEM FAILURE FAULT LIGHT HAS STARTED SHOWING ON MY BMW. THERE HAS BEEN A RECALL REPORTED ON THE SAME COMPONENT "STATEMENT ON VOLUNTARY RECALL INVOLVING FRONT PASSENGER SEAT SENSOR MAT ON U.S.A. MODEL BMWS - AUGUST 13, 2008". IT IS NHTSA RECALL CAMPAIGN NUMBER: 08V384000. I HAVE THE SAME PROBLEM SO I CALLED…

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PASSENGER RESTRAINT SYSTEM FAILURE FAULT LIGHT HAS STARTED SHOWING ON MY BMW. THERE HAS BEEN A RECALL REPORTED ON THE SAME COMPONENT "STATEMENT ON VOLUNTARY RECALL INVOLVING FRONT PASSENGER SEAT SENSOR MAT ON U.S.A. MODEL BMWS - AUGUST 13, 2008". IT IS NHTSA RECALL CAMPAIGN NUMBER: 08V384000. I HAVE THE SAME PROBLEM SO I CALLED BMW AND THEY STATED THAT MY CAR IS NOT PART OF THE RECALL. I DO NOT UNDERSTAND HOW MY CAR IS HAVING THE EXACT SAME PROBLEM BUT IS NOT PART OF THE RECALL? THIS IS A HUGE SAFETY ISSUE. I THINK BMW SHOULD BE HELD RESPONSIBLE AND SHOULD BE REQUIRED TO CORRECT THIS FAULTY MAT SENSOR PROBLEM BEFORE SOMEONE IS INJURED. I AM AFRAID TO CARRY PASSENGERS IN MY CAR FOR LIABILITY REASONS. *TR

NHTSA ODI #10554565

150,000 miles · Nov 16, 2012
Service BrakesService Brakes, Hydraulic

TL* THE CONTACT OWNS A 2004 BMW 645CI. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER 10V446000 (SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM). THE CONTACT STATED THAT A YEAR AFTER THE REPAIRS WERE COMPLETED, A BRAKE FAILURE OCCURRED AND THERE HAD NOT BEEN A FAILURE PRESENT BEFORE THE VEHICLE WA…

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TL* THE CONTACT OWNS A 2004 BMW 645CI. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER 10V446000 (SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM). THE CONTACT STATED THAT A YEAR AFTER THE REPAIRS WERE COMPLETED, A BRAKE FAILURE OCCURRED AND THERE HAD NOT BEEN A FAILURE PRESENT BEFORE THE VEHICLE WAS SERVICED UNDER THE RECALL. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS CONFIRMED THAT THE MASTER CYLINDER AND BOOSTER HAD FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE ISSUE. THE FAILURE MILEAGE WAS 150,000 AND THE CURRENT MILEAGE WAS 150,100. UPDATED 02/20/13*LJ UPDATED 02/20/2013 *JS

NHTSA ODI #10484964

90,000 miles · Jun 27, 2012
Service Brakes

TL* THE CONTACT OWNS A 2004 BMW 645CI. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKE PEDAL WAS APPLIED; HOWEVER THERE WAS NO RESPONSE. THE CONTACT REPEATEDLY ENGAGED THE BRAKE PEDAL AND THEN ENGAGED THE EMERGENCY BRAKE. THE VEHICLE CAME TO A COMPLETE STOP. THE VEHICLE WAS THEN TAKEN TO AN INDEPENDENT MECH…

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TL* THE CONTACT OWNS A 2004 BMW 645CI. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKE PEDAL WAS APPLIED; HOWEVER THERE WAS NO RESPONSE. THE CONTACT REPEATEDLY ENGAGED THE BRAKE PEDAL AND THEN ENGAGED THE EMERGENCY BRAKE. THE VEHICLE CAME TO A COMPLETE STOP. THE VEHICLE WAS THEN TAKEN TO AN INDEPENDENT MECHANIC, WHO STATED THAT THERE WAS A RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER 10V446000 (SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM). THE VEHICLE WAS THEN TOWED TO AN AUTHORIZED DEALER AND THEY STATED THAT THE POWER BOOSTER WOULD NEED TO BE REPLACED. THE DEALER WOULD NOT HONOR THE RECALL FOR AN UNKNOWN REASON. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 90,000. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10463301

Official recalls

0

No recalls in this snapshot.

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

0

No exact-year investigations in this snapshot.