Scirocco Central

Hi,
I have diesel sat on top of the fuel filter and I think its blowing back into the exhaust so doesn't smell great either, can anyone advise where I can get the fuel filter valve from please, I've got a VW Scirocco III [137] 2.0 TDI, and cant see the obvious answer ?

Thanks

Do they have a fuel filter valve? - or do you mean the filter itself?
Mine just has the filter with 4 pipes on the top each coupled to a flexible pipe. Let me know a bit more and I will see if I can help.