06 c230 sport engine knock drivers compt
 

ok i have a knocking noise,heard form inside the car.
my question is,could this be the fuel injection system?
it seems to speed up when accelerated and can not be heard from outside the car.

oil pressure is fine and knocking noise is light but very frustrating a stop light.
dealerships here say its normal,along with the chirping sound i have from the l/s dash while
driving.Makes me want to slap them and say thats normal for someone who bought a luxory car
from them that s__ks.

any suggestions?
thanks phil