Hey thanks guys,
I was able to get the thermostat changed. I knew where it was, and how to replace it, I just didn't know how to get to the bottom bolt. A 2.0 engine and a 1.8 passat engine have different designs from a mk4 1.8 from what i understand. Although they are similar, my thermostat housing as well as the spaces were not the same as them. My plastic thermostat housing has a bolt the top and bottom of the housing, unlike the passat, which apparently has them on the left and right side. It also does not have the space clearance that I saw was present in the 2.0
We ended up getting the bottom bolt off through the use of a hell of a lot of 1/4 extensions, a flexible socket (with some electrical tape around it to keep it firmly pointed in the direction it needed to go), and an Allen head. Luckily the bolts have an Allen head in the middle. Without this there was no conceivable way we could put a 10mm socket at that angle on there.
Also, a little trick i learned for the bottom bolt is to place it into the thermostat housing before you screw it back in, and secure it in place by tying thin fishing line on threads. this will keep it from falling out of place when you are trying to screw it back in.
Because of my large ape hands, it helped me to remove the radiator fan on the side of the thermostat, along with the black metal braked connected to the manifold. I also zip tied all of the tubes out of the way.
P.S. If anyone wants a "specialty mk4 1.8 thermostat wrench" you can find them in my store on ebay for 89.99. Electrical tape not included.
Last edited by KSJNX; 01-11-2010 at 10:09 PM.