Ignition coil Bosch or DELPHI

Just changed the ignition coils. Fixed it!! I recommend getting BOSCH or an OEM equivalent brand.

my issue was the same which ended up being coils and hpfp

since you changed the coils ( Bosch is best ) I would look at the fuel next.

I replaced the spark plugs over the weekend, and I’m doing the ignition coils tomorrow replacing them with brand new Delphi’s.

When you buy on Amazon, make sure you buy directly from the manufacturer. You are right. A bosch ignition coil costs $34 at the official bosch store in amazon, while it costs $60 at advanced auto parts.

I changed my ignition coils to delphi aftermarket ones and the idle is nice and smooth now. But the old ones had like 200k km on them.

That's the Delphi coil. It's the updated part from the original all black Bosch. It's the only one I put in my customer's cars.

Found another store and borrowed vehicle to get a Bosch. Swapped out the carquest one and SEEMED FIXED AGAIN…same thing, ran good for about 5 miles and went back to same symptoms.

Probably the coils. The Bosch coils I’ve used in the past on my 330Ci (same coils) lasted maybe 20K. Delphi are much better.

Stick with the stock Delphi’s. I went with Bosch recently and half of them died within a day (N55). FCP swapped them out, no questions asked, but still a PITA to do the work multiple times.

I don’t like the Delphi ones cause they come apart, if you do spark plugs again say 20k miles passes you could deal with the silicone tube on the end getting stuck down when pulling them, then you gotta be careful and get the spring and that out without the spring flying off somewhere.