general problems of the 2015 Mini Cooper

Three problems related to service brakes have been reported for the 2015 Mini Cooper. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Mini Cooper based on all problems reported for the 2015 Cooper.

1 Service Brakes problem

Failure Date: 08/04/2023

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.

2 Service Brakes problem

Failure Date: 08/28/2022

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.

3 Service Brakes problem

Failure Date: 11/30/2016

I made a right turn from the main street, into the parking lot of a strip mall, then an immediate left turn, and another right turn into the right angle parking slot. All the while having my foot on the brakes, I started to shift into park, when it was in the right spot. The Mini instead coming to a stop, revved up, jumped the curb and hit the store in the front. The air bags deployed. I had my foot on the brakes really hard, all the time but the brake pedals were locked up. It would not move up or down. Sat hard on the floor! when the tow truck came, the brakes were still locked up and the gear was in park and couldn't be moved from there. The seat belts couldn't be retracted either. Mini engineer claims that there is nothing wrong with the car and I can safely drive it after the body is repaired. I am having a difficult time with this conclusion. The car's brakes and gear were locked up, and had to be lifted on a flatbed and taken to the repair shop; I still maintain something within the car malfunctioned.


Other Service Brakes related problems of the 2015 Mini Cooper



Safety Ratings of Cooper Cars
Fuel Economy of Cooper Vehicles
Cooper Service Bulletins
Cooper Safety Recalls
Cooper Defect Investigations