New MB owner. Heard great things of the diesels. Got my '85 300TD wagon instead of an SUV and thought I was so smart and practical. 2 years later, I've rebuild the tranny, just rebuilt the engine. 2 days later, the A/C went out and I,replaced that in the Houston heat and now the tranny is acting funny again.<br> The only saving grace is that my brother-in-law is a MB mechanic, but this has cost me way too much.<br> What are my options? Help!