I was just told coil replacement unnecessary for a compete 60k service of my street car ..
plugs , yes….. comments

 

Bill, think about it for a moment. The labor to just replace the plugs includes replacing the coils. It is said that Porsche engineers are very meticulous about the maintenance on these cars and they don't add things just because. The cost of the coils will set you back less than $200. I purchased 6 Porsche Ignition Coil ZS178 - Beru ZS178 for $169 from NewParts. Will the coils go bad at 60K? No idea, but just imagine if they did. DIY is a bear, and shop rates will be close to $1K. Cheap $169 insurance.

Hope this helps

 

yes thanks , couldn’t agree more but the horse left the barn … without new coils
fingers crossed…..

 

Yes, do coils with plugs everytime... no biggie

 

I once was far more fanatical re plug n coils and swapping coils never more often than 2 or 3:1 ratio of new plugs which I also swapped far more pre-emptively than I do now.

In fact! I'm due for plugs and it's been at least 20k miles, if not a few k more even. But no misfires, no codes, no nothin' and I bet the coils are fine too. But I agree also with the above added advice that swapping the coils at same time as the plugs, is sure a no brainer. Since you'll be staring at 'em to get at the plugs.

I think the 997 Beru/Bosch coils might have been an upgrade if not design tweak(?) those years ago when they were superceded from the intial OEM ( coils ) fitment, because I've never had a "cracked" 997 OEM coil ever.

But then I've never known the "reason" Porsche opted for the 997 coils to be the factory replacement coil. Porsche in fact changed early on to a "6" range SP from the intial "5" heat range on their plugs. Maybe the coils had something to do with greater compatibility. Who knows.