We don’t see this very often on a N55 about 25k miles,,,,the cylinder head gasket leaking oil,,,,leaking from the rear of the head by cylinder 6,,,this was a pretty good leak at that,,,,running down the rear of the engine and on to the ground,,,,it first looked like the oil pan gasket was leaking,,,,but upon further investigation we noticed it was coming from the cylinder head. This job is a lot easier with the motor and transmission completely out of the car,,,,it makes it easier to remove the cylinder head and remove the turbo assemble,,,,instead of fighting it inside the car. Here the cylinder head is removed,,,and if you look at cylinder 6 at the bottom triangle hole in the engine block,,,,,you can see where the cylinder head gasket started to leak,,,,see the dark coloration . Now here is the cylinder head,,,,again you can see the dark coloration where the head gasket and the oil started to leak out,,,,there was no damage to the head or engine block,,,,so we just have to clean up the cylinder head and engine block and replace the headgasket and head bolts and misc gaskets.
bmwtechnician on N20 oil filter housing re… bmwtechnician on N20 timing chain issue bmwtechnician on N20 timing chain issue gv on N20 timing chain issue gv on N20 timing chain issue
- 172,030 hits