Hi

I'm really new to this forum - got a couple of questions about a Mk4 golf.

I apologise in advance for knowing absolutely nothing about golfs..
I am very comfortable workin on my rover 25 so when my brother asked me to have a look at his golf I thought I'd give it a go. mistake.

It keeps cutting out. I've checked that all the airways are ok and had a general look round the engine. I took the pipe from the left hand side of the air filter box and there was "sludge" in it! I don't know how else to describe it. Doesn't look normal to me. What's the pipe for and what does it go into at the back of the engine?

Also, your thoughts on the engine cutting out would be great..

Thanks
Andy