Thanks for ALL of the replies.

I am not sure why its leaking... maybe because its almost 22 years old. Not sure if its ever been changed.

To answer someone else question, its actually leaking on the right hand side (not the side that looks rusty). I felt under the hose and the coolant leaking was on that side.

I really cant afford a costly repair now by having the pump removed/replaced, and I am not mechanically inclined, so I think I will take a trip down to my Mercedes dealer tomorrow and get the hose I need and attempt to change it. I just hope I dont get the old one off and cant get the new one on! That would be bad! We tried tightening the clamps, but they would not budge. I hope I can just get them off.

I know a mechanic that works on cars, (mostly European cars), so I am sure he could do it easy. I may see if he will change it for me. Be a good time to get that green coolant out too, but that may have to wait a couple of weeks.

Thanks again.