Hi all, so last week while stopping at the light my c2s suddenly started shaking, engine light came on and told me to visit service center lol. Turned out cylinder 1 plug and coil are bad. Now my question is, how likely other plugs and coils to go bad after first one. The car has only 50 k miles on it and the dealer says Porsche won't let preventative replacement of all 6 under warranty. I have it CPO till next year

 

Coil packs crack and moisture ingresses and viola, misfires.

Miles are interesting but age with the history of engine temp cycles combined with moisture is the real driver. My suggestion is to replace them all as well as the plugs now. BTW, there are better "thicker" new versions of the coil packs out there. I just did this last month at just before 60k (but at 11 years old) and all the coil packs were cracked.

Buy the coil packs and plugs at Pelican....you'll save $$.

 

From my experience, this is a one-off..... I would not worry about it.... these 997.2 coil packs appear pretty darn resilient. At 50K, your failure was really rare... IMO.

Peace
Bruce in Philly

 

Three of mine were developing hariline cracks at 46K so I changed them all. My friend's C2S at the same mileage developed the same problem you saw, one pack failed completely. We looked at the others and found they weren't in a very good shape (large cracks) so they all got changed. If you remove that aluminum plate protecting the engine head (2 bolts, easily accessible), you can inspect all of them without having to pull them.

 

I had that issue... one went bad but I ended up changing all of them since I have higher mileage on my car.

 

Are we talking about 997.1 or 997.2? I believe the 997.2 has the more robust coil packs and I would just replace as they go bad, not all at once. Not sure what the 997.1 guys do.

 

997.2 . yeah they came out w new type of coil packs and wires . replaced 2 for now