One problem related to brake hoses, lines/piping, and fittings has been reported for the 2005 Mini Cooper S. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mini Cooper S based on all problems reported for the 2005 Cooper S.
Pulled2005 Mini Cooper S in garage, brakes worked fine. Next day, backed car out the garage and the brake pedal went to the floor. No brakes at all! no fluid in the reservoir so I refilled it but still no brakes at all. Had car flat bedded to walsh's garage 7 mile rd redford,mi 313-532-2823 rear brake lines were totally rusted thru where the brake lines are held up to the frame. Lines were rusted thru under the bracket that is tacked to the frame. I do not drive the car in the winter and hardly ever in the rain so I can just imagine what the brake lines would like if I drove it in the winter in michigan?? I contacted Mini USA and they did not seem to care about my brake failure?? the rep stated: " what do u want Mini to do about it?.