This is crazy
Unless the trans was broken prior to your buying the car, there is no way it should fail so soon. I know the trans in my 500 is so sensitive to fluid level that MB changed the dipstick and the new transmissions are sealed. There is no dipstick anymore. (Anyone who knows, please confirm). I believe MBUSA will help you out. For the flagship to lose a tranny at such low mileage would be shameful to any builder.
Alon, do not be too timid about taking charge for your fathers affairs. I once got a friends entire engine rebuilt (under extended warranty) by claiming I was him and dealing with the dealership. My friend doesn't know the difference between a spark plug and a drain plug. He didn't know what I meant when I said his car was blowing oil, so he asked for my help. Another time I got Cadillac to provide all the motor parts free (he paid labor). I never get so lucky with my own problems.
'85 500SL (Euro)