Audi A4: Refrigerant Circuit

 Electromechanical parking brake

Operating the parking brake The electromechanical parking brake is used to secure the vehicle from rolling away unintentionally. The switch is located under the selector lever in the center console. It turns on when the parking brake is set. You can release the parking brake manually or automatic

 Leak Detection on Refrigerant Circuit Using Leak Detection Kit -VAS6201A-

Vehicles with a High Voltage System (Hybrid Vehicles) Read and follow all of the supplemental warnings for all work performed on vehicles with the high voltage system. Refer to → Chapter "Warnings when Working on Vehicles with High Voltage System" and → Electrical Equipment;