Two problems related to wiring have been reported for the 2002 Mini Cooper. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mini Cooper based on all problems reported for the 2002 Cooper.
After a short trip, I had just parked the Mini. Fortunately, it was outdoors and within 50ft of my tool chest. On turning off the ignition and removing the key, I noticed an unusual noise; the [electric] power steering pump continued to run. A few seconds later, smoke appeared. I raced to my tool drawer, grabbing the first suitable tool, channel lock pliers, and proceeded to hastily disconnect one of the battery terminals. Smoke was heavy at that point. Disconnecting power prevented further damage, and was fortunately done in time, before the wiring harness was incinerated, or the situation became a self-sustaining conflagration. Apparently, although there is a 100a fuse present, the fault protection on the power steering pump circuit is inadequate. I removed the power wire to the pump, to allow the vehicle to be driven, with heavy [non-assisted] steering, pending service. Since the outcome is not so bad, why should I complain? consider if the vehicle were parked indoors, and/or if the same event were to happen to someone with less electrical aptitude. I don't expect accessories to last forever; the vehicle is 11 years old with 123k miles. I do object to the failure mode, in which the power steering pump circuit becomes an incendiary device. . .
Went out to dinner with my parents - gone approximately 2 hours - came back to find the car completely burned. Fire department was called by a neighbor. There was no indication at all that there was anything wrong when we parked the car. Have found other cases (via the internet) in the uk that this has happened.