Am I right in thinking that the Wastegate is to the right of the engine and connects to the N75? Have tried search facility but no joy..

The wastegate is a little flap inside the turbo. If you look down the back of the engine at the turbo there is a little cylinder shaped thing on the turbo with a rod coming out of it, one end of the rod connects to the wastegate and the cylinder thing is the wastegate actuator. The actuator pulls the rod (opening the wastegate) when the N75 provides it with a vacuum down the little hose.

Edited 13 August, 201015 yr by chicken_eyebrow

Ah Ok. So whats the little cylindrical shaped item attached (I think) to the right of the engine, below the dump valve?

Do you mean this?

http://farm3.static.flickr.com/2727/4021535650_773b9432e3_o.jpg

Thats the combi valve for the secondary air injection system.

Yes I think thats the one.. Is there any reason why that would have oil seepage?

Nope but if it's malfunctioning then it can leak moisture and exhaust gases out

http://briskoda.net/forums/topic/168501-water-in-the-secondary-air-pumpwhere-is-it-coming-from-pics/

If there's oil in that area then it could be leaking from the rocker cover gasket