Two problems related to battery have been reported for the 2004 Mini Cooper S. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Mini Cooper S based on all problems reported for the 2004 Cooper S.
While exiting the freeway the steering suddenly and without warning became extremely heavy taking significantly more effort then normal to just move the wheel slightly. The next day the power steering worked normally but the fan on the power steering pump continued to run after the engine was turned off. After 5 minutes in a parking lot it had drained the battery to the point where it struggled to start the engine. When I returned home I was forced to disconnect the battery until I can get it serviced.
My car has had intermittent power failure since 2008, usually lasting a few days. More recently my power steering has been out for the past 2 months. Today it started working on my way home from work but the power steering fan remains on after I turn the car off. I had to disconnect the battery in order to keep the fan off. Consequences have resulted in near accidents on the highway and road when failure occurs (failures happened when I have gone into turns). Power steering pump and fan will need to be replaced.
| Electrical System problems | |
| Battery problems | |
| Fuses And Circuit Breaker problems |