Hi all To day I replaced the CC breather valve on my 2004 1.8t Avant with 70k miles. Below you will see my concerns, there was alot of white/yellowish mayo in the pipe and in the valve. My main concern is the sludge issue with these BEX engines however there was no real sludge just this horrid mayo gunk. Of course cleaned the pipe and fitted the new valve and the car runs well now. However I was wondering what precautions/actions I shoudl be doing to keep everything clean and breathing well? Shall I replace the rest of the breather pipes ect and if so what bits do I need ect? Anything I can use to flush it while all in place?