I have found that the crankcase breather hose on the oil filter is bust. I had a look on vagcat.com for the part number and on the diagram it shows this pipe is blanked off on the oil filter housing. Car : 2001 S3 AMK Part number : 06A115418 My question is, will there be a problem with blanking the oil filter housing? Will this cause extra pressure in the engine or will the pressure be released into the rocker cover and out through that breaker hose. What I would like to do is blank off the oil filter breather with $3 part and fit a oil catch can. Will be one less hose it the bay to plumb. New genuine replacement breather hose is around $50.