RoadVitals

2005 MINI Cooper S Convertible Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
61
Latest Jun 2, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
11
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
4

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2005 MINI Cooper S Convertible, 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

  • Steering3753.6%
  • Airbags1521.7%
  • Powertrain (other)57.2%
  • Engine45.8%
  • Body & structure22.9%
  • Seat belts11.4%
  • Transmission11.4%
  • Brakes11.4%
  • Electrical11.4%
  • Interior & seats11.4%
  • Other / unspecified11.4%

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

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

37
reports

From owner reports, verbatim

The contact owns a 2005 Mini Cooper S. The contact stated while driving 10-15 MPH, the steering wheel was significantly loose and turned excessively. Additionally, the contact stated that the steering wheel felt like it would detach from the column. There was no warning light illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not contacted. The failure mileage was unknown.

NHTSA ID 11741577 · filed Jun 2, 2026

TL* THE CONTACT OWNS A 2005 MINI COOPER S CONVERTIBLE. THE CONTACT STATED THAT THE ELECTRIC POWER STEERING WAS FAULTY. MINI OF LOVELAND (4055 BYRD DR, LOVELAND, CO 80538, (970) 292-5020) WAS NOTIFIED OF THE FAILURE, BUT A DIAGNOSTIC APPOINTMENT WAS NOT SCHEDULED. THE DEALER INDICATED THAT THE VEHICLE WAS EXCLUDED FROM EXTENDED WARRANTY PROGRAM: SI M32 02 15 (STEERING AND WHEEL ALIGNMENT). AN INDEPENDENT MECHANIC DIAGNOSED THAT THE POWER STEERING PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS ALSO NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 15V660000 (STEERING). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 133,000.

NHTSA ID 11193136 · filed Apr 1, 2019
All 37 reports naming steering

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

15
reports

From owner reports, verbatim

PASSENGER AIRBAG LIGHT HAS BEEN ON SINCE 2013. MECHANICS TELL ME THAT IT IS A WEIGHT-SENSING MAT ON THE SEAT. MINI RECALLED 2005 MINI'S BUT THIS ONE IS NOT INCLUDED IN THE RECALL. THIS IS A VERY COMMON PROBLEM WITH THIS YEAR FOR THIS CAR.

NHTSA ID 10985814 · filed May 15, 2017

TL* THE CONTACT OWNS A 2005 MINI COOPER S CONVERTIBLE. THE CONTACT RECEIVED A NOTIFICATION FOR NHTSA CAMPAIGN NUMBER: 15V205000 (AIR BAGS); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

NHTSA ID 10783348 · filed Oct 19, 2015
All 15 reports naming airbags

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

5
reports

From owner reports, verbatim

TRANSMISSION UPSHIFTS AND DOWNSHIFTS ERRATICALLY AND/OR SHIFTS INTO NEUTRAL WITHOUT DRIVER INPUT WHILE IN MOTION.

NHTSA ID 10956757 · filed Feb 24, 2017

THE TRANSMISSION IN THIS VEHICLE IS KNOWN TO BE DEFECTIVE BY MINI USA. THE CAR IS UNDRIVABLE AND UNSAFE AS THE TRANSMISSION COULD FAIL AT ANY TIME, STRANDING THE DRIVER OR CAUSING A FIRE. *TR

NHTSA ID 10574290 · filed Mar 23, 2014

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.

4
reports

From owner reports, verbatim

AROUND JUNE 2008 MY MINI COOPER S 2005 BEGAN EXHIBITING WHAT APPEARED TO BE A FAILURE TO MAINTAIN CONSISTENT SPEED WHILE DRIVING AT A CONSTANT RPM. I EXPERIENCED SLOW, OR SLUGGISH ACCELERATION WHILE DRIVING AND THE ENGINE LIGHT WOULD COME ON SPORADICALLY. I TOOK MY MINI, WHICH WAS STILL UNDER WARRANTY IN FOR SERVICE TO BMW/MINI OF SAN ANTONIO AND WAS REASSURED THAT I WAS EXPERIENCING NORMAL SHIFTING MECHANICS. THEY WERE ALSO UNABLE TO DETECT WHY THE ENGINE LIGHT WAS COMING ON. I EXPERIENCED THESE IDIOSYNCRATIC ISSUES CONTINUOUSLY THROUGHOUT THE YEAR AND BEGAN TO NOTICE THE CAR JUMPING HIGHER AND LOWER IN SPEED DURING ACCELERATION IN MORE REGULAR INTERVALS. IN SEPTEMBER OF 2010 THE ENGINE WOULD LURCH INTO GEAR, SECONDS AFTER FAILING TO CHANGE GEARS EFFECTIVELY. AT TIMES, THE CAR WOULD SUDDENLY DROP OUT OF GEAR WHILE DRIVING. I BEGAN TAKING MY CAR INTO A BMW/MINI CERTIFIED SHOP IN AUSTIN, TX. AFTER MUCH TIME, MONEY, AND TROUBLE, PLUS MANY VISITS TO THE MECHANIC, MY MINI COOPER'S CONDITION DETERIORATED COMPLETELY. WHILE IN BUSY TRAFFIC MY MINI LURCHED FORWARD AND STALLED COMING TO A COMPLETE STOP WHILE DRIVING BEFORE I COULD GET IT OFF THE BUSY ROADWAY. I WAS ALMOST REAR ENDED BY VEHICLES BEHIND MINE, THESE DRIVERS HAD TO MAKE EXTREME EVASIVE MANEUVERS IN ORDER NOT TO HIT ME, THE CAR IN FRONT OF THEM, OR BE REAR ENDED THEMSELVES. THIS UNSAFE AND HAZARDOUS INCIDENT ENDANGERED MY LIFE, AND WAS THE LAST FOR MY MINI, RESULTING IN COMPLETE TRANSMISSION FAILURE IN JULY 2011. I SOUGHT OPINIONS ON MY OPTIONS, SHOP QUOTES TO FIX MY VEHICLE, ALL AROUND $10,000. MY VEHICLE HAS NOT BEEN FIXED OR ALTERED, IT STANDS AS IT DID THE DAY OF THE TRANSMISSION FAILURE. IT WAS TOWED FROM THE SHOP TO STORAGE. MY VEHICLE IS NO LONGER UNDER WARRANTY, AND THERE ARE MANY OTHERS WHO HAVE SIMILAR CIRCUMSTANCE DOCUMENTED. WHY WAS THERE NO RECALL? CLASS ACTION LAWSUITS IN CALIFORNIA AND NEW JERSEY. *TR

NHTSA ID 10563887 · filed Feb 11, 2014

LAST DECEMBER MY STEERING WENT OUT ON MY CAR. I DID SOME RESEARCH ONLINE AND FOUND THAT A POSSIBLE CLASS ACTION SUIT WAS IN THE PROCESS. I CALLED MINI NORTH AMERICA TO DISCUSS MY FINDINGS AND TO SEE IF A RECALL WAS IN THE WORKS. THE CUSTOMER SERVICE AGENT STATED SHE WASN'T AWARE OF ANY. I TOOK THE CAR TO MY DEALER AND HAD TO HAVE 4,000 DOLLARS IN REPAIRS. WATER PUMP, SUPER CHARGER AND SEVERAL BEARINGS. I THEN GET A LETTER IN EARLY JUNE OF 2013 STATING THAT A RECALL WAS IN THE WORKS AND TO SEND ALL MY INFORMATION IN FOR POSSIBLE REIMBURSEMENT. I WAS TOLD THAT I QUALIFY AND THAT A CHECK WAS GOING TO BE CUT AND SENT OUT BY THE END OF JUNE OR EARLY AUGUST. WHEN THE CHECK DIDN'T ARRIVE, I CONTINUED TO CALL MINI NORTH AMERICA AND I KEEP GETTING THE RUN AROUND. I WAS TOLD IT WAS GOING TO BE LATE SEPTEMBER OR EARLY OCTOBER. I JUST CALLED AGAIN TODAY AND NOW I'M TOLD IT WILL BE CUT BEFORE THE NEW YEAR. CAN SOMEONE PLEASE PUT SOMEONE'S HAND ON THE FIRE AND GET THIS RESOLVED? [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ID 10547565 · filed Oct 10, 2013

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.

2
reports

From owner reports, verbatim

I HAVE HAD A NEW PROBLEM EVERY WEEK WITH THIS CAR. I TOOK IT TO THE CAR WASH JUST TO FIND OUT THAT THE CONVERTIBLE TOP LEAKS ON BOTH SIDES, AT THE 1ST BEND. THE WATER WAS DRIPPING AT A FAST PACE. I HAD THE TOP CHECKED OUT FOR ANY PROBLEMS PRIOR TO PURCHASING AT WHICH I WAS TOLD NOTHING APPEARED TO BE NEEDED. THE WEATHER STRIPPING AND TOP HAD NO CRACKS ARE SIGN OF WEAR. JUST ANOTHER HEADACHE WITHIN A MONTH OF PURCHASE.

NHTSA ID 10726724 · filed Jun 23, 2015

TRAVELING AT APPROXIMATELY 40MPH. FINGER WAS CUT 2MM DEEP BY DEFECTIVE PEELING/FLAKING CHROME ACCENT ON MANUAL TRANSMISSION SHIFT KNOB. AS A RESULT, FINGER WAS BLEEDING AND EXPERIENCED A SHOCK FROM THE AFFECTED NERVE THROUGHOUT THE BODY WHILE VEHICLE WAS IN MOTION. ATTENTION TO THE ROAD WAS LOST FOR A MOMENT CAUSING ME TO NEARLY GET INTO AN ACCIDENT. *TR

NHTSA ID 10490175 · filed Dec 27, 2012

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.

1
report

From owner reports, verbatim

AFTER THE CAR WENT FOR AN OIL CHANGE, THE SEAT BELT SENSOR (BEEPER) STOPPED WORKING. MINI WOULD NOT PAY FOR THIS TO BE REPLACED. SAID IF THE SEAT BELT SENSOR WAS NOT WORKING, THE AIRBAGS MIGHT NOT DEPLOY. VERY COSTLY REPAIR (COMPUTER SYSTEM REPLACEMENT). SHOULDN'T SAFETY FEATURES (REQUIRED BY THE GOVERNMENT) BE FIXED, WITHOUT CHARGE, FOR THE LIFE OF THE VEHICLE? *TR

NHTSA ID 10515513 · filed Jun 6, 2013

Too few reports in this category for a page of its own — they appear in the full complaint list.

Transmission

Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.

1
report

From owner reports, verbatim

TL* THE CONTACT OWNS A 2005 MINI COOPER CONVERTIBLE S. THE CONTACT STATED THAT COOLANT BEGAN TO LEAK FROM THE VEHICLE ABNORMALLY AND THE VEHICLE WAS TOWED TO THE DEALER. THE DEALER REPLACED THE THERMOSTAT WHICH HE FOUND TO BE FRACTURED. LATER, THE CONTACT BEGAN TO EXPERIENCE FAILURES WITH THE REAR BRAKES. THE DEALER REPLACED THE BRAKE PADS AND ROTORS AND LATER, THE CONTACT BEGAN TO EXPERIENCE AN ABNORMAL RATTLING FROM THE CLUTCH. THE DEALER THEN ADVISED THAT THE CLUTCH AND FLY WHEEL WOULD NEED TO BE REPLACED. THE DEALER ALSO ADVISED THAT THERE WAS A TECHNICAL SERVICE BULLETIN ISSUED BY THE MANUFACTURER (NHTSA ITEM NUMBER : 10025903- POWER TRAIN:MANUAL TRANSMISSION) REGARDING REPLACING THE CLUTCH WITH A NEWLY DESIGNED CLUTCH AND FLY WHEEL. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 28,800.

NHTSA ID 10393690 · filed Mar 30, 2011

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.

1
report

From owner reports, verbatim

TL* THE CONTACT OWNS A 2005 MINI COOPER CONVERTIBLE S. THE CONTACT STATED THAT COOLANT BEGAN TO LEAK FROM THE VEHICLE ABNORMALLY AND THE VEHICLE WAS TOWED TO THE DEALER. THE DEALER REPLACED THE THERMOSTAT WHICH HE FOUND TO BE FRACTURED. LATER, THE CONTACT BEGAN TO EXPERIENCE FAILURES WITH THE REAR BRAKES. THE DEALER REPLACED THE BRAKE PADS AND ROTORS AND LATER, THE CONTACT BEGAN TO EXPERIENCE AN ABNORMAL RATTLING FROM THE CLUTCH. THE DEALER THEN ADVISED THAT THE CLUTCH AND FLY WHEEL WOULD NEED TO BE REPLACED. THE DEALER ALSO ADVISED THAT THERE WAS A TECHNICAL SERVICE BULLETIN ISSUED BY THE MANUFACTURER (NHTSA ITEM NUMBER : 10025903- POWER TRAIN:MANUAL TRANSMISSION) REGARDING REPLACING THE CLUTCH WITH A NEWLY DESIGNED CLUTCH AND FLY WHEEL. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 28,800.

NHTSA ID 10393690 · filed Mar 30, 2011

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.

1
report

From owner reports, verbatim

AIRBAG WARNING LAMP ILLUMINATES INTERMITTENTLY IN DASH AND PASSENGER AIRBAG "OFF" ILLUMINATES ABOVE REAR VIEW MIRROR IN MY 2005 MINI COOPER S CONVERTIBLE. WHEN SOME SITS IN THE SEAT IT COMES ON INTERMITTENTLY. WHEN YOU CHECK THE CONNECTORS UNDER THE SEAT IT GOES OFF WITH WIGGLING. DIAGNOSED BY MINI COOPER DEALERSHIP AS "CRACKED SEAT OCCUPANCY SENSOR" INSIDE THE SEAT. NOT REPAIRABLE ONLY REPLACEABLE. AIRBAG WILL NOT GO OFF IF PASSENGER IN THE SEAT. MINI COOPER HAS COVERED THIS FOR OTHER MODELS, BUT MY CAR IS NOT COVERED. INCURRING ME A $1600 QUOTE FOR MAKE MY CAR SAFE FOR PASSENGERS. *TR

NHTSA ID 10494650 · filed Jan 24, 2013

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.

1
report

From owner reports, verbatim

AIRBAG WARNING LAMP ILLUMINATES INTERMITTENTLY IN DASH AND PASSENGER AIRBAG "OFF" ILLUMINATES ABOVE REAR VIEW MIRROR IN MY 2005 MINI COOPER S CONVERTIBLE. WHEN SOME SITS IN THE SEAT IT COMES ON INTERMITTENTLY. WHEN YOU CHECK THE CONNECTORS UNDER THE SEAT IT GOES OFF WITH WIGGLING. DIAGNOSED BY MINI COOPER DEALERSHIP AS "CRACKED SEAT OCCUPANCY SENSOR" INSIDE THE SEAT. NOT REPAIRABLE ONLY REPLACEABLE. AIRBAG WILL NOT GO OFF IF PASSENGER IN THE SEAT. MINI COOPER HAS COVERED THIS FOR OTHER MODELS, BUT MY CAR IS NOT COVERED. INCURRING ME A $1600 QUOTE FOR MAKE MY CAR SAFE FOR PASSENGERS. *TR

NHTSA ID 10494650 · filed Jan 24, 2013

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.

1
report

From owner reports, verbatim

SAW ON THE WEB THAT MINI RECALLED AND THEN EXTENDED WARRANTY RECALL ON AN AIRBAG MALFUNCTION. THE LIGHT CAME ON A FEW DAYS AGO, BUT I CAN NOT FIND ANY INFORMATION AS TO THE TRUTH IN THAT STATEMENT. SUPPOSEDLY 10 YEARS OR 150,000 MILES. *TR

NHTSA ID 10633101 · filed Sep 15, 2014

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

Data on this page last refreshed .