I work at a BMW specific shop and all we run are the Bosch coils. I personally have them in my E46 M3 and 325ix. We've sold 1000s of them with zero issues.
I was told once by a distributor of many brands including Motorcraft that Bosch made the Triton coils. Our group sold thousands of them, with very little trouble.
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.
I also got my OEM coils for free but i do now need to replace mine, and will be going Bosch.
Few months ago I got all 6 OBD1 Bosch coil packs and it changed nothing for me other than a slightly smoother top end, I still have a slight misfire at idle.
I bought four of these from the Audi dealership and slapped them into my MK5 GTI when I replaced the spark plugs. They work but they aren’t any performance upgrade. I got ‘em because the car is also red ????
9-3’s eat coils; it’s a forever problem on my 9-3 that it seems like every 30k miles I’m spending $200 on new coil packs. It’s essentially routine maintenance. I ordered Bosch OEM coil packs off RockAuto and just now realized they have a warranty. I submitted a warranty claim and they sent me out brand new units. Wish I would have known this because it would have saved me lots of money.
Just replaced my coils. AVOID Bosch. Literal trash that does not even work.
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