One problem related to automatic transmission has been reported for the 2006 Mini Cooper S. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Mini Cooper S based on all problems reported for the 2006 Cooper S.
I purchase my 2006 Mini Cooper S new almost 4 years ago. I have been complaining about the automatic transmission since I purchased it. If you are going down a hill it downshifts extremely hard causing a whiplash effect. Cars have almost hit me from behind many times. Additionally when going up a hill such as a freeway on-ramp, the car will just refuse to accelerate. This is very dangerous when trying to merge onto the freeway. I have spoken many times to Mini headquarters and the consensus is that is how the vehicle is supposed to operate. They told me to buy a new one now because they don't use that transmission any more. They also told me to manually shift the car in those situations. I said if I had wanted to shift manually I wouldn't have paid for an automatic transmission. I am very frustrated with their response. I am disabled and on a limited income. I can't afford to buy a new car and more importantly I couldn't morally sell this one with these kind of problems.