Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Front Doors, Central Locking System >> 57 Front Doors, Central Locking System >> Door Components >> Window Regulator, Removing And Installing >> Window Regulator, Removing And Installing, A4 >> Tightening Specifications