Mercedes-Benz E-Class Gearbox & Transmission Problems

Most carmakers are going to fill-for-life on their automatic transmissions and the point I have made is that it's not a good policy for owners to leave it and not have regular changes. Automatic transmission mechanics would say the fluid should be changed every year or around 50,000km at the most. The Mercedes service schedule would seem to be about right and I would stick with that.

Your frustration is understandable. I would urge you to go back to Mercedes-Benz direct and request some assistance with the cost of repairs. While I doubt that Mercedes would cover the whole cost of the job, I would think they might cover part of the cost if you approach them in a reasonable way. If you don't want to go down that path consult an automatic transmission specialist and get another quote for repairs.