The stock ignition coil on our Mk3 Jetta -- which we've had since it was new in 1996 -- just went out about two years ago. Typical crack causing the engine to die when going through puddles. I considered replacing it was an inexpensive Meyle coil. Decided against it, because while Meyle is a German company, their ignition coil is made in China, and I'd heard some bad things. Figuring the OEM VW coil really is over-priced, I finally decided on a Beru coil. It is made in Germany, and so far no problems.
Make sure the new coil is a good Bosch, Beru, or OE unit, not parts-store brand junk. I've seen plenty of bad coils out of the box.
I am currently using the cheaper version because I just never put in the 'thought-to-be-bad' pack back in [btw, it was an injector so both packs were perfectly fine]. With that in mind, I cannot say there was any quality increase because it was never my CP to begin with so it was still misfiring even with the $350 BERU. But, what they did both do is act exactly the same when I put them both in. I have not had any problems thus far with the cheaper one, and it feels about the exact same quality as the beru brand.
Car was misfiring, so I replaced the ignition coil unit (old one was showing cracks). I replaced it with a Beru (OEM) unit. Car went from a sputtering mess to running like a top.
This is a great thread! I just had one go out on me and I've only had the car for 6 days. Replaced it with a friend and 20 miles later another just went, ha.
I ended up getting a brand new Bosch ignition coil from German Autoparts for around $160 shipped with a few other small parts. This was around November last year.
Go Bosch, or Go Badly.
Has anyone ever experienced an odd electrical type humming sound eminating from the front of the dash after putting in a new ignition coil??? I put in a Beru Coil and I could swear I now hear a faint hum that wasn't there prior to installing the new one. It kind of sounds like the radio with the sound way low when it picks up engine frequencies (but I know it's not that). It definitely sounds electrical and not mechanical and I've noticed the hum increases in frequency when I increase the rpm's. Do coils even make any noise??? Thanks.
Performance gains from only a coil, I don't know, probably none, however the car I have it in is completely stock in the engine department. As an addition to mods I think the coil is a good idea because it helps to smooth out these cases when mixture is out of stoich Maybe better throttle response.
Bought new coil. Lucky to get good German Beru unit for little over $90...last of luck. Put in new coil, still no spark.
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