They will fail eventually, always replace them with Motorcraft parts.
Pros: quality replacement parts
Owner reviews for ignition coil
Manufacturers
Comparisons
I read up some online and decided to order new ignition coils. Took a few days, but I got four new coils and threw them in. Again, problem solved it seemed. No more EPC light, misfire codes didn't come back and no more rough starts.
Pros: problem solved, no misfires
Cons: slight misfires during acceleration
Vehicle:
Volkswagen Tiguan
Mileage: 104607 km
Be sure to use a genuine Bosch from a reputable source, or OE from the dealer. DO NOT use a Chinese one from a big-box auto parts store.
Pros: genuine Bosch recommended
Cons: avoid Chinese parts
I was having hesitation problems a few months ago while accelerating. No CEL, and no codes with VAG-COM. I read here that a lot of other people had had identical problems; the CEL and codes didn't start appearing until well after the symptoms started. Changing the coils solved their problems. So I took the risk and changed all four coils (at about 65,000 miles). That completely solved the problem for me. By the way, the new OEM coils had a completely different part number than the original ones.
Pros: solved hesitation problems, completely solved problem
Vehicle:
Volkswagen Jetta
Mileage: 104607 km
And, since the GM LS2 coils use a +5v sequencer trigger and they work perfect with an ME7 ecu, it seems like running a scope test is a bit redundant.
Pros: work perfect with ME7 ecu
many thanks to this diy i just successfully replaced my unbranded made in italy POS coil with a brand new one from beru. gosh, as soon as i put that in and started the car it didnt start so rough. what a small but significant change, kudos and thanks!
Pros: significant change, starts smoother
Cons: unbranded made in italy
Vehicle:
Volkswagen Golf
after you check the dwell and all wiring looks good, it may help to switch to a different coil like the MSD Blaster 3.
Pros: different coil may help
Everyone swears the stock coils are great for 800hp because force fed did it. I don't care, the coils suck and always have. I always had random misfires here of there even when new, and I could never run the plug gap I run now with push downs or bolt downs on a stock car even without serious hesitation and enough to increment the misfire counter. This 190k mile Jetta did this also and I thought maybe carbon fouled plugs or a dying coil. Now it pulls 20 inches of vacuum with a rock solid needle at idle no bouncing, no hesitation. The car sounds absolutely different at idle, fresh plugs and a .040 gap, no other change but the coils and fersh plugs. It sounds throatier and crisper with the larger gap too.
Pros: throatier sound, crisper sound
Cons: random misfires, hesitation
Vehicle:
Volkswagen Jetta
Mileage: 190000 km
Yep. The codes don't lie, the coil pack is bad. I swapped it into my wifes 04' and the CEL/ misfire was right there with it. The guy bought it somewhere local but doesn't have the receipt/ record, so he's out $175.
Pros: codes don't lie
Cons: coil pack is bad
Vehicle:
Volkswagen Passat B5
I ended up with this MSD when I bought Tim's motor and the MSD finally crapped out after about a year of me driving with it. In running a coilpack, I notice no tangible difference between the two. Yes, the MSD looks really, really cool...but if you ain't worried about looking pretty, spend your money elsewhere.
Pros: looks really cool
Cons: crapped out after a year, no tangible difference
Vehicle:
Volkswagen
Write your review about ignition coil
Help others - share your experience with this part.
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads OEM Alfa Romeo got the first review!
The brake caliper OEM BMW got the first review!
The brake pads OEM Infiniti got the first review!
For wiper blades PIAA already 100 reviews.
For battery Energizer already 25 reviews.
In the rating best water pump already 12 brands participate!
In the rating best timing belt already 13 brands participate!
In the rating best head gasket already 3 brands participate!
In the auto rating oil filter for Volkswagen Passat already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating tires for Subaru Outback already 50 brands participate!
For cabin filter Fram already 25 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page