How much would it cost to replace or rebuild the transmission in a 1997 Mercedes Benz E320?
holy crap..thats like half of the car itself!

Take the cost of how much it would take to replace or rebuild an American or Japanese transmission and add $1500 to it. I'm not kidding. Also, Mercedes Benz mechanics prefer that you only go to them and not to anyone else. They tend to frown on knowing if a car was taken to some general auto repair shop. You're looking about $2,700 just for the transmission itself. Tack on another $400 or more for labor. If you look online you'll find one. That price should also include a rebuilt torque converter.