Help needed w203 c230k misfire and big oil leak rocker?

[dalhousie2008]

Hi guys had the c230k for a few month done approx 3k miles.

Had a really lumpy idle and plugged in my code reader to find misfire on 1 and 4 cylinders.

Thought i'll change the plugs and found every single plug well in the rocker cover full of oil.

Cleaned them out best as possible and running much better and still a little lumpy as i didn't have any contact cleaner to hand.

Any ideas where the oil leak could be coming from? I would guess rocker cover.

Are there any know fault that could cause this? maybe breather?

Thanks guys

 

[dalhousie2008]

Just given coil pack another clean out with degreaser and the car is much better not 100% but not bringing up any codes.

I noticed that the vac / small breather pipes where all crispy, brittle and broken open so i replaced them as well.

One was off completely and another was dripping oil, so fingers crossed job sorted.

But if you know of any common faults, please let me know

cheers guys