So I have a 2015 CLA250 4Matic with the doodoo CVT transmission. I would be coasting on the highway and when I would give it enough gas for it to downshift the car would continuously jerk forward and not downshift until I let off the gas. If it happens enough then it would go into a safety feature to where I cannot switch it from eco and I can’t downshift or upshift. It would short shift around 3k rpms up to seventh gear. Anyone ever dealt with this and know how to fix it? I feel like if it keeps happening it’s gonna blow my trans.