I have recently bought a 2001 Golf V5 170bhp. There is a petrol fume smell from the pipes next to the expansion tank. These pipes loosely go into a black plastic box. Any ideas before I attempt to have a look? Whilst I'm happy to have a go at most things, I'd rather seek advice before releasing fuel pipes that could be under pressure.
The image attached is from a V6 but it looks pretty similar to the V5 engine bay. Thanks in advance.golf-mk4-7313.png