Mini Cabrio Diesel Engine Trouble

I'm encountering a rather persistent issue with my 2015 Mini Cabrio Diesel. The engine is running rough, and the check engine light is illuminated. Error memory indicates a fault related to 'reset quantity drift compensation.' Could a defective injection valve or injector be the primary cause? Any suggestions before I consider performance tuning or a costly repair?

4 comment(s)

Rough engine running and a check engine light? Sounds familiar. I had a similar issue with my Mini Cabrio. Did you check the car sensors? It could be related to the injection system. Is it throwing any specific error codes when you do an onboard diagnostics check?

Yes, the onboard diagnostics shows an error related to 'reset quantity drift compensation.' Did your issue also involve drift compensation? How did you resolve it? Any specific sensors I should be looking at?

Yep, that 'reset quantity drift compensation' error rings a bell. In my case, it ended up being an injector issue as well. I tried a few things myself, but honestly, you're probably better off taking it to a reputable workshop to get the injectors properly tested and possibly replaced. They'll have the right tools for the compensation adjustment afterward.

Thanks for the insights. I took it to a workshop; it turned out to be a faulty injector. Replaced it, and after the compensation adjustment, the engine runs smoothly again. Total cost was around 515€.

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