What 71 owners told NHTSA about the 2015 Mini Cooper S

The rear windshield fell out of the top of my convertible. There was no accident or foul play involved. The glue that bonds the window to the top became unglued. This happened at 70,000 miles. The top is made of fabric and the window is made out of glass. Have to you replace the entire top to repair it. Not sure why this is not a recall. It is a well-known problem for the car.

NHTSA ODI 11708598

The fuel filling nozzle turns off repeatedly (as if already full) while filling the fuel tank. About 1/4 to 1/3 of a gallon of fuel will go in before it turns off, backs up, and the gas overflows onto the outside of the car and onto the concrete. It happens regardless of the pump being used. It started happening occasionally a few months ago if the tank was refilled when a quarter full. It now happens consistently, no matter the fuel level. I had the car put on a lift and the system diagnosed today. The mechanic said the cause is a faulty service valve within the fuel tank assembly. They also said it is a known issue with F56 Mini Coopers.

NHTSA ODI 11692422

The back window comes unglued to the convertible top when the car is parked outside in warm weather. Ive seen this in several other mini cooper roadsters within the past few weeks. This causes the car to have a hole in the convertible top and leaves the glass hanging from the sensor. To fix it you need to buy a whole new top. This HAS to be a design defect.

NHTSA ODI 11677078

Lower Engine Support and Passenger Engine Mount damaged as per routine inspection by dealer in Feb2025. Never diagnosed before. Repair done by independent service center in Feb2025 and I have receipt of approximately 1K. Also, since 22feb2025, I am not able to add fuel to the tank because the pump stops constantly and causes spill of fuel. This can cause fire. Never happened before. Tried at least 4 different gas station and same result. Dealer charges over $200 to perform inspection/diagnostics. Not done yet. Repairs to fuel tank are in the thousands. No warning in the car dashboard for none of the issues. Car with less than 80k miles.

NHTSA ODI 11644422

While driving in the rain (light rain) front right and rear left brakes locked up. No warning lights came on, it was a very dangerous situation. The car is currently at a repair shop getting looked at, I had to have it towed there because those wheels will not turn while in neutral even. Reading forums this is a common problem, very serious and dangerous especially with no warning.

NHTSA ODI 11638047

Defect in passenger frontal airbag-The front passenger seat occupancy detection mat is not functioning correctly. This was recalled but not for my VIN and needs to be part of the recall.

NHTSA ODI 11637797

While driving the rear view mirror suddenly tilted downward (drooped). What happened, was that the tension ring popped off. As it turns out, this is a known issue per internet Mini Cooper pages. On hot days the ring loosens and, since the design does not include anything to prevent the ring from sliding off, it does slide off, resulting in the rear view mirror drooping. I reinstalled the ring. This occurred again the next day. I ended up uninstalling the rear view mirror, reinstalling the ring and gluing it in place. Thus far this has held.

NHTSA ODI 11606822

The contact owns a 2015 Mini Cooper. The contact stated that while driving at an undisclosed speed, the rear convertible glass suddenly separated from the convertible compartment and fell on the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or local dealer. The contact stated that while searching online, he became aware that the failure had been a very well-known failure since 2017 with similar vehicles. The manufacturer was made aware of the failure; however, no assistance was provided. The failure mileage was approximately 62,000.

NHTSA ODI 11594817

The sensors do not work. The car does not tell me when oil is needed, when my tires are low. No sensors work in the car. The dealer, Mini Of Edison, states FOUND INTERNAL HARDWARE FAULTS. But are stating its costs 2300.00 to fix. This is a huge safety issue.Ive been having to guess when my oil is low and when my tires are low. This has been going on since September 2023, the car was only bought in May 2023.

NHTSA ODI 11569480

The fuel filling nozzle turns off repeatedly while trying to fill the fuel tank and spills out causing a safety and environmental hazard, regardless of the pump being used. As a result, no fuel goes into the gas tank, instead it goes all over the car and the ground.

NHTSA ODI 11552838

What component or system failed or malfunctioned, and is it available for inspection upon request? CONTROL ARMS AND BUSHINGS How was your safety or the safety of others put at risk? CONSTANT CREAKING AND CLUNKING OF FRONT SUSPENSION Has the problem been reproduced or confirmed by a dealer or independent service center? MANY OTHER OWNERS OF THE SAME YEAR AND GENERATION HAVE THIS SAME ISSUE Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NOT YET Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? NO

NHTSA ODI 11552701

Without any warning lamps,The vehicle started pulling left when the brakes were applied a certified mechanic looked at it and feels that is the due to a defective DSC/ABS control unit. The unit hasn't been otherwise inspected but is available for inspection

NHTSA ODI 11551994

The contact owns a 2015 Mini Cooper S. The contact stated while driving at an undisclosed speed, the front passenger’s side air bag warning light remained illuminated stating that the air bag was turned off. The vehicle was taken to the dealer where it was diagnosed that the seat mat needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the request for assistance was denied. The failure mileage was approximately 80,000.

NHTSA ODI 11549827

Fuel tank causes gas pump to click off after dispensing a tenth gallon of gasoline. Gas spills from gas tank while removing pump creating a safety and environmental hazard. Fuel tank will not accept gas at pump. No warning lamps, messages, or symptoms were present prior to the failure. Mini Cooper dealership stated that service valve in tank has failed and entire fuel tank must be replaced.

NHTSA ODI 11546035

While driving on freeway in 109 degree temp the service engine light came on. Proceeded with trip home (approx 2 hrs). Made a service appt online with Mini of Stevens Creek which was for 3 days later. Upon inspection it was found that vehicle had multiple problems. Service Advisor would not allow me to drive vehicle home while awaiting parts that were on B/O. Estimated it could be as long as 2 months before repaired because there were 391 units coming in next delivery but my vehicle was number 403 on the list requiring this part and would have to wait for the following months delivery. I was quite alarmed of the repairs needed since my vehicle has <28,000 miles and well maintained.

NHTSA ODI 11542137

The contact owns a 2015 Mini Cooper. The contact stated that after the vehicle was taken to a local dealer for a routine oil change, the mechanic also determined that the valve cover gasket needed to be replaced and an unknown engine software needed to be updated. The vehicle was not repaired. The manufacturer was made aware of the failure, and the contact was advised to file a complaint with the NHTSA Hotline. The approximate failure mileage was 78,000.

NHTSA ODI 11517933

The horn does no longer work. Had to press harder and harder on the horn button and in different places as time went on. Also have the same problem in a 2005 Mini Cooper.

NHTSA ODI 11512027

When refueling, fuel is rejected after dispensing about 1/8 US gallons, about 4 oz. Of course, fuel spills are a hazard - both in possibly of fire, and to the environment - by contaminating ground water. Dealer said that there are several solenoid operated valves and replaced fuel tank and fill pipe, a cost to me of $2400.00. There are many reports of this on social media, one person suggested holding the fuel nozzle upside down which made a larger spill.

NHTSA ODI 11487713

When refueling, nozzle kept shutting off, a gallon was pumped after nine attempts, also fuel erupted as the fill tube was filled with gas. reluctant to drive this car not knowing how much gas is in the tank. The needle shows less than 1/4 and miles remaining fluctuates between 80 and 110 miles. We are told that this problem exists in many mini automobiles, dealer has replacement gas tanks, but same problem exists Parking our Mini, indication of "roll back" is possible when car is parked. Shifter unit was replaced due to torsion spring.

NHTSA ODI 11485453

The proportioning value that controls brake function had a catastrophic failure and caused the brake calipers especially the left front to lock suddenly. The caused the left front wheel to lock and caused the car to pull hard to left and become difficult if not impossible to control. The car pulled hard left and risked the car moving uncontrollably into on coming traffic. The failed part was saved and is available for inspection. The safety of the driver(my wife) was put at risk during the loss of control of the car. Other cars in the area were also put at risk simply due to the loss of control of our car. The problem was confirmed by the independent service center. The vehicle was not drivable and was towed to the dealership. The dealership thought the root cause was the brake master cylinder. This turned out not to be the case. The root cause was the failed proportioning valve. This caused the calipers to lock. The discs, rotors, calipers and proportioning value were replaced. There were no warning lights and the car had been taken for regular service at the dealership which was included in the purchase of the car. We were told that there is no warning light for a failure of this part.

NHTSA ODI 11484820

On display I am getting warning " secure vehicle with parking brake when stationary" whereas my car is in park position with hand brake applied. The warning still shows up. The gearbox works fine the car drives fine. Its the warning that doesn't seem to go away. On diagnostics is shows code "420106" . DEFECTIVE GEAR SHIFT LEVER SPRING

NHTSA ODI 11478373

On July 12 early morning hours I left Maryland drove to Augusta GA and continued on to Decatur GA totaling 704 Miles. Within an hour of me arriving to Atlanta, I attempted to leave the house again and the car would not crank. I had it towed to Global Mini there in Chamblee, GA. The key stopped communicating with the car, and I was asked to give them my spare key-I did not travel with my spare key and the key fob design does not have a replaceable battery per the dealership the fob is designed to charge while driving. I had to pay for someone to overnight my second key-which did crank the car. I had to purchase another key and I had to rent a car until they ordered another key to have sent to the dealer because the dealer does not make keys. This is a safety issue because i made several stops for gas and restroom breaks and what if this happened in the middle of nowhere? It was a scary situation and I feel that we should have been notified as owners that this could be a possible event. I purchased this vehicle brand new in 2015.

NHTSA ODI 11478249

The contact owns a 2015 Mini Cooper S. The contact stated that the vehicle previously had the fuel carbon filter replaced; however, the failure recurred while attempting to refuel the vehicle. The fuel tank dispersed the gasoline outward, spilling on the vehicle. The vehicle was taken to an independent mechanic who diagnosed that the fuel tank needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA. The failure mileage was approximately 67,000.

NHTSA ODI 11477351

The fuel filling nozzle turns off repeatedly while filling the fuel tank, regardless of position of nozzle, pressure used, station used. In an attempt to remedy, Mini Service Technicians replaced tank vent valve but it did not correct the issue. I am unable to fill my gas tank.

NHTSA ODI 11453987

I can not put gas into my car. I have had the charcoal canister replaced. I am now being told that I need a new fuel tank. I’ve also been informed that this is a reoccurring problem in 2015 mini coopers.

NHTSA ODI 11453476