How to I go about plumbing the turbo oil return into the sump, as at the mo it is plumbed into the dipstick hole so I can't check oil level. Thanks peeps.

 

you plumbed it into the dipstick hole, not a great idea as it'll put back pressure on the turbo seals.
either take sump off and press/screw an oil return stub in, or drill and tap block after removeing blank screw from just behind the cps sensor.

 

I didn't plumb it into the dipstick hole, I've only had the car a week. I'm just trying to sort what the previous owner did. Thanks for the advice, I will have to get that sorted.