I have no power on my C230, if you push the pedal down to accelerate it dives even with the pedal to the floor. A shop ran the code and said it returned the air flap motor code from the supercharger. The part connects right to the air filter housing and the manifold. It has a butterly valve that holds shut and allows pressure to build. They took it apart and cleaned and lubed it but it did nothing. The part is special order and about $450 plus $170 in labor.

Anyone experience this or does this sound like a possible solution to the problem?