gravedgr

Searching provided poor results, so apologies if I missed a good thread but I was wondering what sort of interval people are choosing for coil pack replacement. Searching in general seems to suggest replace all at the first failure, but a friend replaces his quite frequently. I’m interested in the consensus here.

DiscoWagon

I am installing new coil packs every time spark plugs are changed, every 12k miles. It's one of those "might as well while you're in there" kind of situations for me.

Chris88

It would be interesting to know how far people have gone without replacing them. In my GT3, I've not replaced them and now have a bit over 23,000 miles (6-1/2 years old)

marcus1982

Me too, so I am wondering, some people have money to throw out completely useless or it is know failure point?

mwar99

They certainly do fail, I had to have one replaced under warranty, but I wouldn't think to the point that you change them that often. I had over 38K on the car and only had the one issue.

GrantG

There is no scheduled replacement interval, afaik. Changing them every 12k seems like overkill to me (if they’ve been working great for 12k, I might trust them more than untested ones new in a box).

DiscoWagon

I bought mine from FCP Euro who offers Lifetime Replacement on parts purchased from them. So technically, it only cost me to buy a set of coilpacks once.

roadawg1608

Seems rather arbitrary to me.

I dont believe coils are part of the cars recommended maintenance schedule so I wouldn't do it unless it fails or error codes indicate an ignition issue even after replacing the plugs... Seems like a waste of money to me but if I helps you sleep at night can't hurt.

Gabriel@NutCracker

On my earlier 981BS there was no coil pack heat shield from the factory. Failed coil spoiled a road trip once. From that point on I started changing coils with plugs on that car. However on my 991 GT3 the coils seem pretty well shielded, so I will probably only change the coils either when one fails or after some rather long time like 10 years.

Just like with 981BS, the 991 GT3 takes coils from Beru, so preventative replacement would not cost much.

Gabriel@NutCracker

Second that. Happened to me once, that a NGK coil I put on my earlier R8 with plug change as preventative maintenance failed shortly after.

dwe8922

I've been told to replace coil packs when they start to show cracks.

gravedgr

🤔 I need to tell my tech whether to order them or not. I generally avoid replacing factory parts ahead of schedule unless aftermarket is definitely better, but when there is no schedule… 🤷🏻‍♂️

Kitc2246

981s don't have heat shields. Adding the 911 heat shield is highly recommended for aggressive driving and a must for the track. As stated coil packs are not a maintenance item so without a symptom or visual crack replacing is not needed. If you chose to replace there is no additional labor as part of a spark plug change.