The transmission in our 94 E320 Wagon is acting up lately. seems to be slipping, it revs quicker but the car responds slower, i dont know what would be causing this type of problem (doesnt seem like a simple fix, but i have no clue about transmissions.) The car also seems to be running hotter and getting lower MPG lately (dont know if any of these three are related but theyve all started in a similar time period. im just hoping i dont need a new tranny. any light you could shed on this issue would be greatly appreciated.