Currently having issues with my 2016 C300

was driving it one day and i put it in sport+ and i floored it and the car wasn't going anywhere it just wasn't going at all, like the turbos wasn't working or no boost i didn't hear my turbo spoolin or anything either

So i let the car sit for a couple hours and drove it the next day and it was fine whenever i would drive uphill i'd hear my turbo spool up, whenever i would put it in sport+ the car would pull i didn't go full throttle though i just went half throttle and the car would get boost and i'd hear the turbo

i scanned the car and got p0299 code

and the next day i went full throttle and it did the same thing again, no boost didn't pull, didn't go anywhere

any ideas?

 

There is a solenoid which controls the boost. If this happens often you may start to see a check engine light.
I would remove the boost solenoid and see if it's bypassing. If it's not bypassing, then that is the part to remove however you may want to check the fuse also.
Good luck.