Hoping someone else has dealt with this issue and may have some ideas. I have a 2009 MINI Cooper, about 97K miles, and recently it has started to stall out (usually after traveling some distance) when I slow down (usually in a parking garage or in construction—which is really fun). I took it to a shop and had spark plugs changed and valve replaced (because oil was getting into and affecting one of the spark plugs), and the mechanic told me that no codes were thrown when it stalled. Thought it fixed the problem, but car stalled out after the most recent road trip. Any thoughts? Let me know if you need more details.