Home >> Audi >> 2020 >> SQ8 Premium Plus >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Components (Brake System) >> 47 Hydraulic Components >> Vacuum System >> Check Valve, Removing And Installing >> Check Valve With Vacuum Hose In Engine Compartment, Removing And Installing, 3.0L TDI Engine >> Tightening Specifications