Recently purchase a used 2016 c63 s at 99,000km. about 5000 km later the car is reving at high rpm and sticking at a high rpm with some delayed shifting. I am thinking throttle bodies could use a cleaning. Lots of components to remove to access throttle body. Looking for some advice. Was looking at reaching in with a hose with some carb cleaner through the airway and giving it a shot?

Also, B2 service code is on?

Can't find no info on the car: repair manual, diagrams, nothing.

Thanks,

Justin