Leaks, Finding Using Nitrogen Pressure Test: Notes
WARNING: This page is about a different car, the 2025 Audi S3, 2025 Audi RS 3, and 2025 Audi A3 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Pressure Gauge Set with Pressure Reducer for Nitrogen (maximum reducing pressure: 13.5 bar (195.8 psi))
- Service Coupling (can also be used from the A/C Service Station)
- Filler Hose
- Nitrogen Cylinder
Tools, Preparation
-- Connect the Pressure Gauge Set with Pressure Reducer for Nitrogen (maximum reducing pressure: 13.5 bar (195.8 psi)) -1- to the nitrogen cylinder -3- and the filler hose -2- (for example with a M12 x 1.5 -6G thread according to SAE J639).
Fig 1: Identifying Pressure Gauge Set With Pressure Reducer For Nitrogen (Maximum Reducing Pressure: 15 Bar)
-- Connect the Service Coupling with the filler hose -2-.