Customer towed vehicle in due to a rough running vehicle after he started and drove it about one mile. He turned the car off and then turned it back and noticed the same issues. He then parked it at a gas station and then towed it to us.
In the pictures below you can see cracks forming in all of the ignition coils, which caused the rough idle and hesitation and ultimately the check engine light misfire codes P0300, P0301, P0303, P0304, and P0305. So while you're changing the spark plugs it's definitely a good idea to replace these ignition coils as well.
If you're interested in supporting us and would like to purchase the ignition coils from Amazon to repair your Porsche Carrera below is the link, thanks!