2005 BMW 645CI Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2005 BMW 645CI, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Airbags1022.2%
- Brakes613.3%
- Seat belts511.1%
- Engine511.1%
- Electrical48.9%
- Interior & seats36.7%
- Steering36.7%
- Exterior lighting24.4%
- Body & structure24.4%
- Heating & air conditioning12.2%
- Suspension12.2%
- Driver assistance12.2%
- Powertrain (other)12.2%
- Other / unspecified12.2%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
I PLACED AN ITEM IN THE FRONT PASSENGER SIDE SEAT WITHOUT FASTENING THE SEATBELT AND THE AIRBAG LIGHT CAME ON AND STAYED ON... THIS IS THE FIRST TIME THIS HAS EVER HAPPENED. THE CAR WAS STATIONARY BUT THE ENGIN WAS RUNNING.
WHILE DRIVING, A SYMBOL ON THE DASBOARD DISPLAYED THE FOLLOWING ALERT MESSAGE "FAULT IN PASSENGER-RESTRAINT SYSTEM AFFECTING AIRBAG, BELT TENSIONER OR BELT-FORCE LIMITER." THE VEHICLE WAS STATIONARY DURING THIS OCCURANCE.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2005 BMW 645CI. THE CONTACT STATED THAT AN UNKNOWN FLUID WAS LEAKING FROM ENGINE COMPARTMENT. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED WITH NEEDING THE VACUUM PUMP TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. UPON INVESTIGATION, THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 10V446000 (SERVICE BRAKES, HYDRAULIC) HOWEVER, THE VIN WAS NOT INCLUDED. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 120,000.
THE BRAKE VACUUM PUMP SEALS ARE LEAKING. THIS ULTIMATELY WILL AFFECT THE BRAKE ASSIST AND POTENTIALLY RESULT IN FAILURE TO STOP THE VEHICLE WITHIN PRESCRIBED STOPPING DISTANCES CREATING POTENTIAL FOR A CRASH. THIS PROBLEM WAS IDENTIFIED BY THE LOCAL BMW DEALERSHIP IN HIGHLANDS RANCH DENVER. OCT 1 2010 BMW RECALLED 198,000 VEHICLES INCLUDING V8 AND 6 SERIES VEHICLES FOR THIS EXACT SAME PROBLEM BUT MY VIN SHOWS NO RECALL NOTICE HOWEVER IT HAS THE EXACT SAME COMPONENT EXPERIENCING THE EXACT SAME ISSUES AND BMW IS REFUSING TO ACKNOWLEDGE THAT MY VEHICLE SHOULD BE RECALLED AS FOR THIS VIN THERE ARE NO OUTSTANDING NOTIFICATIONS. I REPEAT THE EXACT SAME ISSUE IS BEING EXPERIENCED ON MY VEHICLE AS WAS THE REASON FOR 198,000 VEHICLES RECALLED FROM THE NOTICE OF OCT 1 2010
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
I PLACED AN ITEM IN THE FRONT PASSENGER SIDE SEAT WITHOUT FASTENING THE SEATBELT AND THE AIRBAG LIGHT CAME ON AND STAYED ON... THIS IS THE FIRST TIME THIS HAS EVER HAPPENED. THE CAR WAS STATIONARY BUT THE ENGIN WAS RUNNING.
WHILE DRIVING, A SYMBOL ON THE DASBOARD DISPLAYED THE FOLLOWING ALERT MESSAGE "FAULT IN PASSENGER-RESTRAINT SYSTEM AFFECTING AIRBAG, BELT TENSIONER OR BELT-FORCE LIMITER." THE VEHICLE WAS STATIONARY DURING THIS OCCURANCE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
I OWN A BMW 645CI 2005 CONVERTIBLE I HAVE ISSUES YES ISSSUES WITH THIS VECHILE, FIRST ISSUE IS THE INFAMOUS IDRIVE THAT NEVER REALLY WORKED PROPERLY SINCE I PURCHASED THE CAR, IT BLINKS ON AND OFF FOR 30MINS THEN IT WOULD MAGICALLY COME ON UNTIL ONE DAY IT JUST DIDN'T COME BACK ON THIS WAS AFTER A TRIP TO THE DEALER TO GET THE CONVERTIBLE TOP LOCK REPROGRAMMED.. SO THE CAR WAS INCLUDED IN THE LAWSUIT SO I TAKES IT TO THE DEALER FOR THE REPROGRAMMING AND MY CAR CAME OUT WORST THEN IT WENT IN THE IDRIVE NEVER WORKED TO THIS DAY WHICH IS 04/16/2018, MY TOP ONLY OPENS WITH THE PASSENGER SIDE DOOR SLIGHTLY OPENED YES THE DOOR HAS TO BE OPEN FOR THE TOP TO OPERATE... THIS IS WHAT THE DEALER TOLD ME SO I WAS SO CONFUSED OF WHAT THE REPROGRAMMING WAS FOR ? I NEED ANSWERS AND IT'S NOTHING I DID AS A OWNER I WAS VERY TO THE BOOK WHEN IT CAME TO OPENING MY TOP AND OPERATING THE IDRIVE AND ETC... THE INFAMOUS COOLANT LEAK ALSO COMES FROM A DEFECTIVE BIMMER PIPE THAT WAS INSTALLED BY THE MAKERS OF THE VEHICLE AND WE THE CUSTOMERS HAS TO PAY TO REPAIR THESE ISSUE THAT OCCUR ON 60% IF NOT MORE OF THESE CARS ...
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 MESSAGES;NO SERVICE ENGINE LIGHT; AND DROVE FINE FOR A FEW DAYS,AND THEN DID THE SAME THING AGAIN!! I TOOK THE CAR TO A BMW REPAIR SHOPPED TO HAVE THE FAULT CODES READ, WHICH END UP BEING A LONG LIST OF CODES, THAT THE MECHANICS COULD NOT FIND THE REAL CAUSE OF THE ISSUE. SO,I HAD THE SHOP REPLACE MY SPARK PLUGS; IGNITION COIL; AND RESET THE COMPUTER CODES. THE CAR DROVE OKAY FOR ABOUT A MONTH,AND THEN DID THE SAME THING AGAIN!! I DON'T KNOW WHAT TO DO,THIS PROBLEM COULD CAUSE ME TO END UP IN A SERIOUS ACCIDENT,I AM AFRAID TO DRIVE THE CAR!! AS OF 07/06/2014, MY BMW 645 IS OFTEN SHOWING FALSE; LOW OIL MESSAGE; INCREASE EMISSION; TRANSMISSION MALFUNCTION; AND CLEAR AFTER TURNING CAR OFF, AND RESTARTING THE CAR!! I AM SO CONFUSED ABOUT THIS BMW 645!! *JS
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
"TAKATA RECALL" HEADLIGHT WIRING BURNED
I OWN A BMW 645CI 2005 CONVERTIBLE I HAVE ISSUES YES ISSSUES WITH THIS VECHILE, FIRST ISSUE IS THE INFAMOUS IDRIVE THAT NEVER REALLY WORKED PROPERLY SINCE I PURCHASED THE CAR, IT BLINKS ON AND OFF FOR 30MINS THEN IT WOULD MAGICALLY COME ON UNTIL ONE DAY IT JUST DIDN'T COME BACK ON THIS WAS AFTER A TRIP TO THE DEALER TO GET THE CONVERTIBLE TOP LOCK REPROGRAMMED.. SO THE CAR WAS INCLUDED IN THE LAWSUIT SO I TAKES IT TO THE DEALER FOR THE REPROGRAMMING AND MY CAR CAME OUT WORST THEN IT WENT IN THE IDRIVE NEVER WORKED TO THIS DAY WHICH IS 04/16/2018, MY TOP ONLY OPENS WITH THE PASSENGER SIDE DOOR SLIGHTLY OPENED YES THE DOOR HAS TO BE OPEN FOR THE TOP TO OPERATE... THIS IS WHAT THE DEALER TOLD ME SO I WAS SO CONFUSED OF WHAT THE REPROGRAMMING WAS FOR ? I NEED ANSWERS AND IT'S NOTHING I DID AS A OWNER I WAS VERY TO THE BOOK WHEN IT CAME TO OPENING MY TOP AND OPERATING THE IDRIVE AND ETC... THE INFAMOUS COOLANT LEAK ALSO COMES FROM A DEFECTIVE BIMMER PIPE THAT WAS INSTALLED BY THE MAKERS OF THE VEHICLE AND WE THE CUSTOMERS HAS TO PAY TO REPAIR THESE ISSUE THAT OCCUR ON 60% IF NOT MORE OF THESE CARS ...
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
MY WIFE WAS DRIVING MY KIDS TO SCHOOL, WHEN SMOKED FILLED THE CABIN OF THE CAR. SHE PANICKED AND CALLED ME AND I TOLD HER TO TURN THE CAR OFF AND GET OUT. MY SON NOTICED THAT HIS MOTHER WAS SMOLDERING. PLEASE SEE THE PICTURES ATTACHED. I CONTACTED BMW AND THEY ARE NOT WILLING TO DO ANYTHING. I LOOK ONLINE AND FOUND THE DOCUMENT ATTACHED AND NOTICED THAT THIS IS A VERY COMMON PROBLEM. HOW MANY TIMES DOES THIS NEED TO HAPPEN BEFORE SOMEONE GET HURTS SERIOUSLY. PLEASE CONSIDER A MANUFACTURER'S RECALL SO THAT THESE OBVIOUSLY DEFECTIVE WARMERS CAN BE CHECKED OR REPLACED.
AS I WAS DRIVING MY 2005 BMW 645 CI YESTERDAY, I NOTICED A STRONG BURN SMELL IN MY CAR. I THOUGHT IT WAS OUTSIDE UNTIL I EXPERIENCED THE SAME ODOR TODAY WHEN I TURNED ON MY SEAT WARMER. AFTER SOME INVESTIGATION, I'VE DISCOVERED THERE IS SMALL HOLE ON MY LEATHER SEAT. APPARENTLY, THE SEAT WARMER BURNT THROUGH THE LEATHER SEAT CAUSING THE SMELL. THIS HAVE GOT TO BE A DEFECT, HOW CAN BMW ENGINEER A PRODUCT THAT COULD POTENTIALLY CATCH ON FIRE. 02/20/2013 *TR.... UPDATED 03/08/13 *BF THE CONSUMER REQUESTED TO HAVE THE COMPLAINT DELETED FROM OUR DATABASE. UPDATED 03/11/13 UPDATED 3/13/13
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
SOME DAY WHEN I COME OUT TO MY CAR IT WANT GO IN DRIVE AND DYNAMIC MALFUNCTION & TRANSMISSION MALFUNCTION POP UP ON THE SCREEN
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 MESSAGES;NO SERVICE ENGINE LIGHT; AND DROVE FINE FOR A FEW DAYS,AND THEN DID THE SAME THING AGAIN!! I TOOK THE CAR TO A BMW REPAIR SHOPPED TO HAVE THE FAULT CODES READ, WHICH END UP BEING A LONG LIST OF CODES, THAT THE MECHANICS COULD NOT FIND THE REAL CAUSE OF THE ISSUE. SO,I HAD THE SHOP REPLACE MY SPARK PLUGS; IGNITION COIL; AND RESET THE COMPUTER CODES. THE CAR DROVE OKAY FOR ABOUT A MONTH,AND THEN DID THE SAME THING AGAIN!! I DON'T KNOW WHAT TO DO,THIS PROBLEM COULD CAUSE ME TO END UP IN A SERIOUS ACCIDENT,I AM AFRAID TO DRIVE THE CAR!! AS OF 07/06/2014, MY BMW 645 IS OFTEN SHOWING FALSE; LOW OIL MESSAGE; INCREASE EMISSION; TRANSMISSION MALFUNCTION; AND CLEAR AFTER TURNING CAR OFF, AND RESTARTING THE CAR!! I AM SO CONFUSED ABOUT THIS BMW 645!! *JS
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
The contact owns a 2005 BMW 645CI. The contact stated that while the vehicle was at the independent mechanic for the front driver’s side bulb replacement, the mechanic informed the contact that the headlight wires were brittle and burnt. The dealer was made aware of the failure and informed the contact to buy new headlamps. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to file a complaint with the NHTSA. The failure mileage was 100,046.
"TAKATA RECALL" HEADLIGHT WIRING BURNED
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2005 BMW 645 CI. THE CONTACT STATED THAT WHILE TRAVELING VARIOUS SPEEDS, THE DRIVER'S DOOR ERRONEOUSLY OPENED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 88,000.
2005 BMW 645CI. CONSUMER HAS LEAKING PROBLEMS FROM THE CONVERTIBLE TOP *GR THE CONSUMER STATED RAIN LEAK INSIDE THE VEHICLE AND DESTROYED ALL OF THE ELECTRICAL COMPONENTS. THE CONSUMER STATED THE VEHICLE WAS AT THE BODY SHOP FOR REPAIRS, AND MAYBE THE REPAIRS WERE NOT DONE PROPERLY WHICH CAUSED THE WATER LEAK IN THE TRUNK. THE BODY SHOP CLAIMED THEY ONLY REPAIRED THE REAR BUMPER AND THE EXHAUST. THE CONSUMER STATED AN E-MAIL WAS SENT ADVISING THAT THE LEAK WAS COMING FROM THE CONVERTIBLE TOP AND THE HISTORY OF THE REPAIR NEEDED TO BE CHECKED, BECAUSE THE DRAIN HOSE HAD BEEN REPAIRED BEFORE. THE CONSUMER WAS TOLD THERE WERE LEAVES AND DEBRIS IN THE TRUNK CAUSING IT TO CLOG AND IT WAS THE CONSUMERS FAULT. THE CONSUMER STATED THE VEHICLE WASN'T PARKED NEAR ANY TREES AND IT WAS IMPOSSIBLE FOR LEAVES TO BE IN THE TRUNK. THE CONSUMER THEN DISCOVERED A TECHNICAL SERVICE BULLETIN RELATED TO THE PROBLEM SHE AND HER HUSBAND EXPERIENCED WITH THEIR VEHICLE. *JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Heating & air conditioning
Reports naming the heating, ventilation and air-conditioning system.
From owner reports, verbatim
TL*- THE CONTACT OWNS A 2005 BMW 645I WITH A CURRENT ODOMETER READING OF 26000 MILES. THE CONTACT STATED THAT WHILE DRIVING UNDER DRY CONDITIONS AT ABOUT 5 MPH HE FELT AN ELECTRIC SHOCK IN HIS BUTTOCKS FROM THE SEAT. THE CONTACT REPOSITIONED HIMSELF IN THE SEAT AND FELT THE SHOCK AGAIN, AND THIS TIME IT WENT ALL THE WAY DOWN HIS LEG. THE CONTACT STATED THAT HE PULLED TO THE SIDE OF THE ROAD AND SAW SMOKE COMING FROM HIS SEAT. HE CALLED THE FIRE DEPARTMENT AND AS HE LOOKED IN THE HOLE IN THE SEAT HE COULD SEE ELECTRIC CURRENT PASSING THROUGH . THE FIRE DEPARTMENT CAME OUT AND DISCONNECTED THE FUSE FOR THE HEATED SEATS. THE CONTACT MADE AN APPOINTMENT WITH THE DEALER TO HAVE THE PROBLEM FIXED. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
SOME DAY WHEN I COME OUT TO MY CAR IT WANT GO IN DRIVE AND DYNAMIC MALFUNCTION & TRANSMISSION MALFUNCTION POP UP ON THE SCREEN
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
SOME DAY WHEN I COME OUT TO MY CAR IT WANT GO IN DRIVE AND DYNAMIC MALFUNCTION & TRANSMISSION MALFUNCTION POP UP ON THE SCREEN
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
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 MESSAGES;NO SERVICE ENGINE LIGHT; AND DROVE FINE FOR A FEW DAYS,AND THEN DID THE SAME THING AGAIN!! I TOOK THE CAR TO A BMW REPAIR SHOPPED TO HAVE THE FAULT CODES READ, WHICH END UP BEING A LONG LIST OF CODES, THAT THE MECHANICS COULD NOT FIND THE REAL CAUSE OF THE ISSUE. SO,I HAD THE SHOP REPLACE MY SPARK PLUGS; IGNITION COIL; AND RESET THE COMPUTER CODES. THE CAR DROVE OKAY FOR ABOUT A MONTH,AND THEN DID THE SAME THING AGAIN!! I DON'T KNOW WHAT TO DO,THIS PROBLEM COULD CAUSE ME TO END UP IN A SERIOUS ACCIDENT,I AM AFRAID TO DRIVE THE CAR!! AS OF 07/06/2014, MY BMW 645 IS OFTEN SHOWING FALSE; LOW OIL MESSAGE; INCREASE EMISSION; TRANSMISSION MALFUNCTION; AND CLEAR AFTER TURNING CAR OFF, AND RESTARTING THE CAR!! I AM SO CONFUSED ABOUT THIS BMW 645!! *JS
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
2005 BMW 645CI. CONSUMER WRITES IN REGARDS TO SETTLEMENT REIMBURSEMENT FOR TWO WHEEL REPLACEMENTS. *SMD THE CONSUMER WAS INFORMED, TWO OF THE WHEELS CONTAINED SEVERAL CRACKS ON THE INNER LIP OF THE WHEEL, WHICH CAUSED HIM TO LOOSE DANGEROUS AMOUNTS OF TIRE PRESSURE ON NUMEROUS OCCASIONS.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .