Originally Posted by keendog42
This forum is making me a bit nervous. I bought my 07' 335i with 15k on it two years ago, now at 27k I haven't really had any issues other than a footwell module & the HPFP recall. I had planned on keeping this car as it's my favorite of all time but all the issues posted here i.e. coils, plugs, injectors, carbon build-up, etc. have me second guessing that decision. It almost seems as if it's a matter of when not if something will fail prematurely.
It mainly comes with the territory of running an aggressive map. Misfires may not even show up running stock or a basic stage 1 map on any tune. Fortunately, it is fairly straightforward to diagnose and replace the usual suspects - plugs and coils. It does not cost that much either; I would not let this deter you from keeping and enjoying your car