The car does not accelerate immediately when I step on the gas pedal; it picks up speed slowly while the engine makes a loud noise. On diagnosis, it returned error PO107 and P0335. My mechanic told me the engine won't start if the crankshaft position sensor is faulty, implying there is another problem.

How can I silence speedometer beeps sound.
Because beeps starts after 120 km/h and it's annoying because it's continuesly beeping.