UK-POLOS.NET - THE VW Polo Forum

Cheers guys.

So the story of the well-known crankcase breather and what to do with it.
I'm still doubting what to do with it on my GTI.

When I swapped the org. air box for a K&N Typhoon about a year ago, I found the airbox & filter had the sort of oil mist over it.
Also, my TB is still quite "misted" in oil. I'm planning to clean it soon but I also want to avoid future greasing.
As far as I know there is luckily no mayo present.

What are the best options to do with it?
Perhaps a stupid question but why can't you just cut the hose and lead it under the car?
I want to avoid greasing my TB / K&N / Inlet as far as possible.

Cheers guys, Marvin

You can pipe the crankcase breather down and out the way. Down to the fog area works with a breather filter on the end

Alternatively fit a catch can to the crankcase breather hose to prevent it making everything oily

I've done as Alex says and ran a length of pipe off of the breather and down behind the fog light, it's been like this for about 5 years

Word of caution though it'll come fairly close to the alternator belt so make sure it's secured well and clears the belt

Cheers guys for both your replies!

@6n2stan, did you use the filter on the end of the hose? Doesn't it get oily somewhere?

Many thanks mate. Cheers from rainy holland.

I dont use a filter but it is recommended. I don’t get any oil mess as it’s so far from the original breather.

Well noted Stan and with many thanks.. Will have look to fabricate such myself as well.. Assume you have you capped the original connection / inlet?

Yes I did blank off the airbox inlet.