Audi Q7: Fuel Supply

 Tires, Rolling Noises

Tires, Rolling Noises, General Information Rolling noise perceived by the human ear is caused by vibrations transmitted from the noise source to the ear via the air. Here we are interested in noises created by certain characteristics of the tires as well as the effects of rolling (noise source).

 Leaking or Damaged Components except A/C Compressor, Reservoir or Receiver/Dryer

The refrigerant circuit was completely empty (for example with larger leak or cracked hose)   Note In the event of only a minor leak with slow escape of refrigerant (e.g. at a small leakage point), the amount of refrigerant oil lost and the amount of moisture penetrating is not sufficien