All 4 coils (they´re now Bosch red color)
my first bmw was a 2007 328i and kept having misfire issues. Tried 6 new coils from autozone, still had misfire issues, returned them and ordered Bosch. Misfire was gone.
Whenever I need a coil, I try to find a Bosch blue first. For whatever reason they’re scarce, but I’ve always had good luck with them.
Installed APR coils with NGK lasers in January. No issues here since.
I also got my OEM coils for free but i do now need to replace mine, and will be going Bosch.
i ended up going with BOSCH 0986221072 ignition coils, no issues with stage 1 tune so far. Put almost 20,00km since installation.
Coils: buy Bosch or Delphi coils. DO NOT BUY THEM OFF OF AMAZON. You would be better off leaving them then replacing them with an aftermarket brand.
I assumed it was bad and while it was sad to get rid of the OE Bosch, Autozone had a C831 coil that I was able to pick up. I think the boot was slightly too small but I’m 90% sure it’s making contact but I am still not getting it to arc.
But, its Bosch ignition coils had a defect and were being recalled.
I have the APR coil packs installed currently (about 5k mikes on them so far) and I gotta say... Just stick with OEM. There is no benefit...
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