Hi All,
In the first 2 months of ownership of my 2012 c63 coupe I noticed the smell of burning oil coming from under the bonnet and also the car had started to run slightly rough on idle, I had a quick look and noticed that oil had been dripping onto the exhaust manifold on the right hand bank so straight away I thought it must be the valve/rocker cover gasket so I ordered one from MB when it came to fitting the new gasket and I began to remover the coil packs cylinder two spark plug well was completely full of oil (that explains the rough running). Anyway I cleaned up all the oil and new gasket installed, I thought all was well up until the car started running rough again, straight away I removed the cylinder two coil pack and oil had stared to build up around the plug again.
I cleaned up all the oil and started the car leaving the coil pack out so I could see where the oil was coming from and to my surprise I could see oil seeping through the cylinder head wall about a quarter of the way down the spark plug well!
so it’s looking like I’m going to need a new head, lucky the car is still under warranty.
I’m just wondering if any has ever heard of this happening, I have searched and searched but can’t find anything.
Apologies if this is in the wrong section (first post)
In the first 2 months of ownership of my 2012 c63 coupe I noticed the smell of burning oil coming from under the bonnet and also the car had started to run slightly rough on idle, I had a quick look and noticed that oil had been dripping onto the exhaust manifold on the right hand bank so straight away I thought it must be the valve/rocker cover gasket so I ordered one from MB when it came to fitting the new gasket and I began to remover the coil packs cylinder two spark plug well was completely full of oil (that explains the rough running). Anyway I cleaned up all the oil and new gasket installed, I thought all was well up until the car started running rough again, straight away I removed the cylinder two coil pack and oil had stared to build up around the plug again.
I cleaned up all the oil and started the car leaving the coil pack out so I could see where the oil was coming from and to my surprise I could see oil seeping through the cylinder head wall about a quarter of the way down the spark plug well!
so it’s looking like I’m going to need a new head, lucky the car is still under warranty.
I’m just wondering if any has ever heard of this happening, I have searched and searched but can’t find anything.
Apologies if this is in the wrong section (first post)
