2012 C300 4Matic-
My car has been running rough for a few weeks so I had my mechanic change the plugs and do an oil change but still ran rough after that.
I noticed that the car would shift hard from 2nd to 3rd, felt like the motor mounts. So i went back to my mechanic and had the engine and transmission mounts changed. Shifting was a bit better, but took it back. Now we found metal shavings at the drive shaft and had that changed. Still not better.
I took it to the dealer and they could not find anything wrong with it. No engine light, no codes, nothing. Really?

Now the Ac is cutting out periodically for about 4 mins or so and then would run normally. Now the ac will not come on, it seems to have a mind of it’s own and turns on when it wants to.

When pressing down on the accelerator the car seems to fight and not want to speed up and shutters until it shifts.

Thoughts anyone?

Thanks for reading.