2004 Mini Cooper S

Transmission problem
2004 Mini Cooper S 4 cyl Front Wheel Drive Manual 35000 miles

When I got my oil changed today the mechanic came and showed me that I have a transmission fluid leak. He says it is an " unservicable item" and they cant' fix it, I have to take it to a dealer. Problem is, the nearest mini dealer is 180 miles away. He didn't know exactly where the leak was coming from or how much fluid I had left, but the bottom of my car was covered in brown fluid. Is this something simple that any mechanic can fix relatively inexpensively, or am I going to have to figure out how to drive it 180 to the dealer? Any ideas would be appreciated.
March 1, 2008.

Check out the related content below while we wait for the question to be answered by a professional mechanic.