One problem related to tail light switch has been reported for the 2013 Mini Cooper. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Mini Cooper based on all problems reported for the 2013 Cooper.
2013 Mini Cooper both right and left tail light assemblies have required replacement at the dealer due to melted plastic adjacent to light bulb contacts. Quoting the dealer service record "found left tag light bulb out and right lower brake light melted. Replaced tag light bulb and right tail light assy. " that service was performed at a Mini dealer in 2018. The same problem and same repair was performed at a different Mini dealer in 2017. Similar problems have been reported on this website (NHTSA vehichle complaints), and the problem was familiar to the service personnel at both dealerships. Mini has a standard practice of issuing "warranty extensions" for known "defects in materials or workmanship" which cover the expense (both parts and labor) for replacement and repair as necessary, but does not rise to the level of a full recall. Mini also keeps detailed, non-public, records tracking the frequency of common vehicle repairs. I would recommend that this issue receive the next level of investigation to determine if either a warranty extension or a full recall is indicated. Thank you for taking the time to read this note.