I’ve used Bosch without issue as well.
I've a 09 E89 3.0 and went with the Bosch coils about 2 years & 20k miles ago and haven't had any problems yet
I have a Y2014 2.5L JSW. I went to the BOSCH (a lot cheaper) route and 10K miles later, no problems.
I went from sub 0.030" spark gaps to the stock above 0.040" spark gaps without getting spark blowout for 4 years now.
I replaced the OEM coil with an MSD ignition coil earlier this year after having similar misfiring issues. Haven’t had any issues since.
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.
The coils are Bosch and I assume the OEM from factory. I know they car is 18 years old, and I don't mind replacing them, but I'm curious if age, and not just mileage, plays a factor in coils and spark plugs. Manual says change spark plugs at 100k and it seems unusual to me for coils to fail with so few miles on them. I've had several other cars with over 150k miles that never had a failed coil, and one car even had over 250k miles (and about 25 years old). Could there be something causing these coils to fail prematurely? Should I look for a different brand than Bosch?
I bought a new Bosch coil from TT because the original in my '88 Scirocco 16V didn't have the exact readings the Bentley said it should have. The new coil didn't have the correct readings either according to the Bentley and it didn't make my Scirocco run better.
Soooo many burnt up MSD ignition coils. We tried our best.
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