WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
Refrigerant
Component
Tightening Specification
R134a, PR number KK1
Evacuating and charging valve, low and high-pressure side
2.0 Nm
R1234yf, PR number KK3
Evacuating and charging valve, low and high-pressure side