Wife's car: 2002 Passot 4motion; auto; 150K; purchased new. Leak is not oil, trans fluid, power steering fluid, or wiper fluid; this is verified by the coolant level in the reservoir going down. Two doses of stop leak has slowed it way down but it still leaks somewhere. There are some finger size holes in the bottom of the bell hosing. There is also a slit in the bell housing and the ring gear is fully in view. The anti freeze is coming out of one of the finger size holes and blows across bottom of trans and cat and stains them. Ring gear looks fine. I took the engine covers off to look at the pipes at the back end of the motor (up against fire wall). To do this I removed some of the 9,000 vacuum lines back there to get a better look. Of course 10 year old, brittle lines do not like to move and consequently disintegrated. I had a good view back there but not perfect. I could get an inspection mirror in there and I could feel around the rear water pipes and hoses to the heater with my hand. This inspection showed no leaks or any signs of anti freeze discoloration in back of engine. I have car on a lift so the view from underneath is as good as one can get. Nothing is seen except for antifreeze coming out those holes. I had a water boxer van with lots of leaks so I do not want the same problems with Passot. I would like to find the leak and fix it properly.