2005 BMW 525I 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 525I, 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
- Airbags2245.8%
- Seat belts714.6%
- Interior & seats510.4%
- Electrical48.3%
- Powertrain (other)48.3%
- Exterior lighting12.1%
- Steering12.1%
- Brakes12.1%
- Heating & air conditioning12.1%
- Engine12.1%
- Fuel system12.1%
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
AFTER HAVING AN INDEPENDENT MECHANIC SCAN MY VEHICLE WITH AN ADVANCED SCAN TOOL, THE ERROR THAT CAME UP WAS FOR THE "PASSENGER SEAT OCCUPANCY SENSOR". THIS FAULT HAS CAUSED BOTH THE AIRBAG AND SEATBELT LIGHT TO REMAN ILLUMINATED CONTINUOUSLY. THE FIRST TIME IT HAPPENED, I HAD THE CODE RESET. BUT AFTER A PERSON SAT IN THE PASSENGER SEAT, THE ERROR CODE CAME BACK WITH THE SAME FAULT CODE.
FRONT PASSENGER SEAT OCCUPANCY SENSOR HAS FAILED. REAR LEFT HAND BRAKE/BACKUP LIGHT IS PROBLEMATIC AND INTERMITTENTLY WORKS, USUALLY ONLY SHOWS UP ON CAR'S DASHBOARD WHILE IN REVERSE, BUT SOMETIMES WILL STAY ON-SCREEN DURING DRIVING. FRONT ASHTRAY OUTLET/CIGARETTE LIGHTER DOESN'T WORK.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
PASSENGER RESTRAINT SYSTEM FAULT.
WHEN THE BATTERY WAS CHANGED IN THE CAR, THE PASSENGER RESTRAINT SYSTEM FAILURE LIGHT CAME ON. THE VEHICLE WAS NOT IN MOTION, NOR HAS IT BEEN IN ANY KIND OF WRECK. AN AIRBAG LIGHT AND PASSENGER RESTRAINT LIGHT IS NOW ON. BMW SAYS IT IS NOT UNDER RECALL.
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
AFTER HAVING AN INDEPENDENT MECHANIC SCAN MY VEHICLE WITH AN ADVANCED SCAN TOOL, THE ERROR THAT CAME UP WAS FOR THE "PASSENGER SEAT OCCUPANCY SENSOR". THIS FAULT HAS CAUSED BOTH THE AIRBAG AND SEATBELT LIGHT TO REMAN ILLUMINATED CONTINUOUSLY. THE FIRST TIME IT HAPPENED, I HAD THE CODE RESET. BUT AFTER A PERSON SAT IN THE PASSENGER SEAT, THE ERROR CODE CAME BACK WITH THE SAME FAULT CODE.
THE FIRST DAY I GOT MY BRAND NEW 2005 BMW 525I WAS IN DECEMBER OF 2004 AND I WAS DRIVING IT AND A EMERGENCY WARNING LIGHT CAME ON TELLING ME THAT SOMETHING WAS WRONG WITH THE TRANSMISSION, TO PULL OVER AND HAVE IT TOWED TO THE NEAREST BMW DEALERSHIP. I HAD TO GET MY BRAND NEW CAR TOWED BACK TO THE DEALERSHIP WHERE THEY REPLACED THE TRANSMISSION. THIS WAS ONLY THE BEGINNING OF A CYCLE OF EVENTS THAT NEVER HAPPENED WITH MY HONDA ACCORD, MERCEDES, ACURA, BLAZER OR SATURN. MY SCREEN LIGHTS UP LIKE A CHRISTMAS TREE ALL THE TIME WITH ALL KINDS OF STRANGE WARNINGS THAT UNLESS YOU ARE AN ENGINEER MIGHT AS WELL BE IN SWAHILI. I HAVE HAD A PROBLEM WITH THE PASSENGER RESTRAINT SYSTEM FAILURE LIGHT STAYING ON AND NO ONE CAN FIGURE THAT ONE OUT. I HAVE HAD A FLAT TIRE LIGHT COME ON (IT'S ON RIGHT NOW) WHEN THERE IS NO FLAT TIRE. THE WOOD PANELING ON THE PASSENGER'S SIDE ABOVE THE GLOVE COMPARTMENT HAS 3 HUGE CRACKS THAT GO ALL THE WAY THROUGH IT. MY GLOVE COMPARTMENT WON'T OPEN BECAUSE THE HANDLE BROKE OFF. MY SUNROOF COVER FLIES BACK INTO THE BACK OF THE TOP OF THE CAR AND GETS LOST BACK THERE AND THERE IS NO WAY TO REACH IT. THE LIGHTER (WHICH I NEED FOR A CHARGER FOR MY PHONE) MALFUNCTIONS AND THE WOODEN PANEL COVER DISAPPEARED INTO THE INTERIOR COMPONENT OF THE CAR AS I WATCHED HELPLESS LEAVING A BIG UGLY GAPING HOLE. I AM SO CAREFUL WITH MY CAR AND CAN'T BELIEVE THIS IS WHAT I GOT FOR $50,000. THESE ARE PROBLEMS THAT A 1972 VOLVO MIGHT DEAL WITH BUT MY 2005 BMW? THE REPAIRS AND SERVICE ARE OUTLANDISHLY EXPENSIVE AND TO HAVE THESE PROBLEMS IS SIMPLY UNACCEPTABLE. THE FRONT DRIVER FLOOR MAT GETS STUCK UNDER THE PEDALS ALMOST MAKING ME WRECK! I'M EMBARRASSED WITH HOW MY BRAND NEW BMW HAS TURNED INTO A "GHETTO" RIDE. *TR
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
I am encountering persistent issues with my 2005 BMW 525i. Despite having replaced several critical components, including the ignition coils, spark plugs, mass air flow sensor, and throttle body sensors, the vehicle continues to experience performance problems, specifically failing to advance beyond the fourth cylinder when driving uphill. After conducting numerous diagnostic tests, I have concluded that there may be an air leak in the intake manifold. Additionally, after prolonged use under these conditions, the positive battery cable from the trunk has shown signs of overheating, evidenced by smoke, which I suspect is related to repeated uphill driving. While the vehicle performs adequately on flat surfaces, it exhibits hesitation and jerking once it surpasses the fourth cylinder.
FRONT PASSENGER SEAT OCCUPANCY SENSOR HAS FAILED. REAR LEFT HAND BRAKE/BACKUP LIGHT IS PROBLEMATIC AND INTERMITTENTLY WORKS, USUALLY ONLY SHOWS UP ON CAR'S DASHBOARD WHILE IN REVERSE, BUT SOMETIMES WILL STAY ON-SCREEN DURING DRIVING. FRONT ASHTRAY OUTLET/CIGARETTE LIGHTER DOESN'T WORK.
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 PURCHASED THIS BMW 525I USED FROM A PERSON THAT OBTAINED IT FROM A WHOLESALE DEALER, IT HAD SOME MINOR FRONTEND DAMAGE FROM A FENDER BENDER (BROKEN GRILL, DING TO HOOD) SHOWING 107900 MILES. EVERYTHING ELSE CHECKED OUT. I FEW MONTHS LATER I NOTICED A SLIGHT CHANGE IN TRANSMISSION SOUND, BUT IT MIGHT HAVE BEEN DUE TO THE COLD TEMPERATURES HERE IN WISCONSIN. A COUPLE OF DAYS LATER WHILE JUST FINISHING GOING UP A SLIGHT STRAIGHT INCLINE AT AROUND 45MPH THE TRANSMISSION DROPPED DOWN INTO LIMP DOWN MODE AND A TEMPORARY NOTICE CAME UP ON THE COMPUTER SCREEN INDICATING A TRANSMISSION PROBLEM. STOPPING AND RESTARTING THE ENGINE CLEARED THE PROBLEM, THE NEXT DAY NEAR THE SAME SPOT IT OCCURRED AGAIN. I ASSUMED THE TRANSMISSION MIGHT BE LOW ON FLUID BUT LOOKING ONLINE BMW INDICATED THIS IS A NO SERVICE TRANSMISSION BUT THAT IT IS POSSIBLE TO CHECK THE FLUID LEVEL BY ACCESSING A PLUG UNDER THE CAR. WHEN A SERVICE TECH CHECKED HE SAID THE FLUID LEVEL WAS NORMAL BUT SMELLED BURNT. HE RECOMMENDED AGAINST ANY SERVICE IN THAT IT LIKELY WOULD RESULT IN FASTER COMPLETE FAILURE. THE PROBLEM HAS NOT REOCCURRED AND NO CODES SHOW IN THE SYSTEM FILE, IN THAT BMW INSISTED ON NO PROVIDING A METHOD TO CHECK THE TRANSMISSION FLUID, THEY ASSUMED THE LIABILITY FOR FAILURE IF REGULAR MAINTAINANCE (TRANSMISSION FLUSH) COULD HAVE PREVENTED THIS FAILURE.
TL* THE CONTACT OWNS A 2005 BMW 525I. THE CONTACT STATED THAT THE VEHICLE DECELERATED INDEPENDENTLY WHILE BEING OPERATED AT LOW SPEEDS. THE AIR BAG WARNING INDICATOR AND SERVICE TRANSMISSION WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 130,000. UPDATED 02/16/17*LJ
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 tail-lights have gone out creating safty issue and number of warning lights to come up on the dashboard. Dealership stated that the wiring harness around ground wire has melted. They stated that this is same issue that is mentioned under NHTSA Campaign Number: 13V407000. The service advisor said that his issue would be fixed by same service bulletin SIB 630613, however my date range is not included in the recall. I would like to report an issue to open a case and extend the recall to include all E60 models from 2004 to 2010. Would you please open an investigation into this matter and contact me for additional information and photos.
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
ACTIVE STEERING FAULT. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
I am encountering persistent issues with my 2005 BMW 525i. Despite having replaced several critical components, including the ignition coils, spark plugs, mass air flow sensor, and throttle body sensors, the vehicle continues to experience performance problems, specifically failing to advance beyond the fourth cylinder when driving uphill. After conducting numerous diagnostic tests, I have concluded that there may be an air leak in the intake manifold. Additionally, after prolonged use under these conditions, the positive battery cable from the trunk has shown signs of overheating, evidenced by smoke, which I suspect is related to repeated uphill driving. While the vehicle performs adequately on flat surfaces, it exhibits hesitation and jerking once it surpasses the fourth cylinder.
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
I GOT A SECOND DEGREE BURN FROM MY CAR SEAT HEAT MALFUNCTION FROM MY 2005 BMW 525I. THE CAR SEAT WENT ON FIRE AND BURNED MY CLOTH AND MY SKIN. *JB
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 am encountering persistent issues with my 2005 BMW 525i. Despite having replaced several critical components, including the ignition coils, spark plugs, mass air flow sensor, and throttle body sensors, the vehicle continues to experience performance problems, specifically failing to advance beyond the fourth cylinder when driving uphill. After conducting numerous diagnostic tests, I have concluded that there may be an air leak in the intake manifold. Additionally, after prolonged use under these conditions, the positive battery cable from the trunk has shown signs of overheating, evidenced by smoke, which I suspect is related to repeated uphill driving. While the vehicle performs adequately on flat surfaces, it exhibits hesitation and jerking once it surpasses the fourth cylinder.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
MY CAR HAS A GAS SMELL EVEN IN THE INSIDE SMELLS LIKE GAS
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 .