Two problems related to transmission gear slipping have been reported for the 2005 Mini Cooper. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mini Cooper based on all problems reported for the 2005 Cooper.
When driving vehicle transmission slips causing a jerk reaction in the vehicle and then it will renegade causing another jerk reaction in the vehicle and makes going and or stopping unpredictable. Turning left is dangerous as the car may not move forward at a speed that it should or may jerk in the middle causing the vehicle to stop in front of oncoming traffic. I have had a machanic change the transmission and it still does the same thing. I have contacted the manufacturers who informed me that there were no recalls and nothing they would do.
Before I bought the car it was rear-ended from losing speed because the transmission was slipping. This is in the design of this year of Mini Cooper as I am finding that it is on the internet as just a bad design. I can't get anyone to work on it for a reasonable price. I'm hoping there's some help out there for unsuspecting innocent people like me who thought they were getting a good car and now it is just unsafe as I have had to tow it 3 times now and I've only had it since may of this year 2018.