09/09/2026
I have a stripped 14mm 12 point spark plug in a 335i bmw. We put the extractor over it which ended up being too big and got stuck in the cylinder head. We were able to finally remove the extractor but the porcelain top part broke off with it. Now we’re stuck with the bottom part of the spark plug left in the head. We’ve sprayed PB blaster multiple times and tried other extractors but not catching any grip. Can’t tell for sure if the bolt is still there and fully stripped or if it came off with the porcelain part of the plug but didn’t see it. Any advice? Pictures of the spark plug below