Mini Cooper S owners have reported 1 problem related to underhood wiring (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mini Cooper S based on all problems reported for the Cooper S.
Auto was parked in driveway after a 30 mile drive, turned off and keys removed. After some time being parked, car started billowing smoke from under the hood. Dash lights came on, parking lights came on spontaneously. No keys present in the vehicle. Before I was able to disconnect the battery the apparent short circuit had drained the battery. Vehicle was towed to Mini of peabody MA where it was determined the electro-hydraulic power steering pump had shorted out causing the wiring harness to be destroyed and also destroying the battery.
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