Bmw 645CI problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
45 owner complaints analyzed
0 distinct recall campaigns
75,500 mi median reported failure mileage
Scope: 2004 to 2006 model years. Data snapshot: . 30 complaints include usable failure mileage.
Most common problems
Air Bags is the most frequently named component, appearing in 14 of 45 complaints (31.1%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 8 | 17.8% |
| Electrical and battery issues | 4 | 8.9% |
| Transmission and shifting | 2 | 4.4% |
| Engine operation | 2 | 4.4% |
| Steering behavior | 2 | 4.4% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Air Bags | 14 |
| Seat Belts | 9 |
| Electrical System | 7 |
| Seats | 5 |
| Engine | 4 |
| Service Brakes | 4 |
| Steering | 4 |
| Engine And Engine Cooling | 3 |
Air Bags: 14; Seat Belts: 9; Electrical System: 7; Seats: 5; Engine: 4; Service Brakes: 4; Steering: 4; Engine And Engine Cooling: 3
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 2 |
| 25,000 to 49,999 | 2 |
| 50,000 to 74,999 | 10 |
| 75,000 to 99,999 | 8 |
| 100,000 to 149,999 | 6 |
| 150,000 and above | 2 |
Under 25,000: 2; 25,000 to 49,999: 2; 50,000 to 74,999: 10; 75,000 to 99,999: 8; 100,000 to 149,999: 6; 150,000 and above: 2
50,000 to 74,999 miles has the most reports with usable mileage (10). 15 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2005 | 1 |
| 2007 | 1 |
| 2010 | 5 |
| 2011 | 6 |
| 2012 | 3 |
| 2013 | 4 |
| 2014 | 9 |
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 5 |
| 2021 | 3 |
| 2024 | 1 |
2005: 1; 2007: 1; 2010: 5; 2011: 6; 2012: 3; 2013: 4; 2014: 9; 2015: 2; 2016: 3; 2017: 2; 2018: 5; 2021: 3; 2024: 1
Pattern summary
Air Bags leads the component reports. Braking behavior appears in 8 complaint narratives. Electrical and battery issues appears in 4 complaint narratives. Transmission and shifting appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10463301 · 2012-06-27 (June 27, 2012)
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 POW…
Owner-reported narrative. 90,000 miles reported. Look up ODI 10463301 at NHTSA ↗
Owner report 10484964 · 2012-11-16 (November 16, 2012)
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 F…
Owner-reported narrative. 150,000 miles reported. Look up ODI 10484964 at NHTSA ↗
Owner report 11118144 · 2018-08-06 (August 6, 2018)
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.
Owner-reported narrative. Look up ODI 11118144 at NHTSA ↗
Owner report 11431834 · 2021-09-06 (September 6, 2021)
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 f…
Owner-reported narrative. Look up ODI 11431834 at NHTSA ↗
Owner report 10608586 · 2014-07-07 (July 7, 2014)
I WAS DRIVING ON THE HIGHWAY AND MY BMW 645 FAULT MESSAGE DISPLAYED (TRANSMISSION RELATED MALFUNCTION,DRIVE MODERATELY). AFTER THAT,THE SERVICE ENGINE SOON LIGHT CAME ON,ALONG WITH A NEW FAULT MESSAGE THAT DISPLAYED (INCREASED EMISSION). AFTER THAT, THE CAR SPEED ABRUPTLY WENT FROM 60, TO (WHAT FELT LIKE FIRST GEAR),THEN JUST CUT OFF!! THERE WERE CARS AND TRUCKS ALL AROUND ME,DOING THE SPEED LIMIT OF 60 OR HIGHER,JUST MISSING ME,WHILE I'M SITTING STUCK IN THE MIDDLE OF THE HIGHWAY!! I PROCEEDED TO RESTART THE CAR,AND IT STARTED, WITH NO FAULT M…
Owner-reported narrative. 98,345 miles reported. Look up ODI 10608586 at NHTSA ↗
Owner report 10914395 · 2016-10-07 (October 7, 2016)
SOME DAY WHEN I COME OUT TO MY CAR IT WANT GO IN DRIVE AND DYNAMIC MALFUNCTION & TRANSMISSION MALFUNCTION POP UP ON THE SCREEN
Owner-reported narrative. Look up ODI 10914395 at NHTSA ↗
Owner report 10394508 · 2011-04-01 (April 1, 2011)
2004 BMW 645CI. CONSUMER STATES PROBLEM WITH VEHICLE STALLING SEVERAL TIMES. *TGW AN INDEPENDENT REPAIR SHOP PERFORMED A DIAGNOSIS AND CODES FOR THE CAMSHAFT SENSOR AND SOLENOIDS APPEARED. THE PARTS WERE REPLACED, HOWEVER THE STALLING CONTINUED. THE VEHICLE WAS TOWED TO THE REPAIR SHOP AND AGAIN AND THE MECHANIC PERFORMED ANOTHER DIAGNOSIS AND STATED THE PROBLEM WAS THE IDRIVE, BUT WHEN HE ATTEMPTED TO REPROGRAM THE IDRIVE, IT WAS DETERMINED THE CCC AND DME WERE BAD AND NEEDED TO BE REPLACED. *JB
Owner-reported narrative. Look up ODI 10394508 at NHTSA ↗
Owner report 10407253 · 2011-06-17 (June 17, 2011)
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.
Owner-reported narrative. 70,800 miles reported. Look up ODI 10407253 at NHTSA ↗
Owner report 10983391 · 2017-05-03 (May 3, 2017)
ACTIVE STEERING MALFUNCTION, AIRBAGS LIGHTS, STABLE CONTROLL STEERING WHEEL IS COCKED ABOUT HALF TURN TO DRIVE STREIGHT.
Owner-reported narrative. 75,000 miles reported. Look up ODI 10983391 at NHTSA ↗
Owner report 10416277 · 2011-07-29 (July 29, 2011)
TL* THE CONTACT OWNS A 2005 BMW 645CI. THE CONTACT STATED WHILE DRIVING 20 MPH THE STEERING FAILED AND SHE LOST CONTROL OF THE VEHICLE MOMENTARILY. AFTER REGAINING CONTROL OF THE VEHICLE, SHE DROVE IT HOME. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THEY WERE IN THE PROCESS OF DIAGNOSING THE FAILURE. THE FAILURE MILEAGE WAS 57,000.
Owner-reported narrative. 57,000 miles reported. Look up ODI 10416277 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2004 | 0 |
| 2005 | 0 |
| 2006 | 0 |
2004: 0; 2005: 0; 2006: 0