Stone thrown....
Running away............
Yep AMG. Fat fingers strike again.
Stone thrown....
Running away............
Change the engine fluid & filters as well. If there's no warnings about gearbox " Tran Safe" " Trans fail " then it sounds like just a servicing problem.
I would be plugging it into a decent diagnostic tool as if it's gone into transmission overhear strategy and holding onto gears then I would think it would show as a fault the same as if the engine is down on power and struggling to get up a hill
Its really easy to default to worse case scenario, but I would urge you to just do a few simple checks first as suggested already. I had the same with mine. Its gone from being almost undriveable with torque convertor shudder, to being a dream to drive. Its cost me £150 for the correct oil as from the looks of it, mine had beem filled with standard ATF rather than Lifeguard.
Dexron 1?
Shouldn't it be Dexron III?