Audi Q7: Heating, Ventilation & Air Conditioning

 Vacuum System, Checking

Tests and Test Requirements Special tools and workshop equipment required Brake Servo Tester -VAS6721- The following checks will be helpful when performing Fault Finding in case of complaints regarding the brake booster or the so-called "hard brake pedal". The following components are included

 Coolant Recirculation Pump -V50-, Function

  Note The Coolant Recirculation Pump -V50- is currently not installed in all vehicles. Refer to → Rep. Gr.19; Coolant System/Coolant; Connection Diagram - Coolant Hoses. If a parking heater is installed as optional equipment in vehicles, a Coolant Recirculation Pump -V50- m