Service Station, Connecting With A/C Adapter Set :VAG1786 To Refrigerant Circuit

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Connecting With Air Conditioning Adapter Set V.A.G 1786

Courtesy of AUDI OF AMERICA, LLC

A - Connection with valve (small valve insert) on low-pressure side of refrigerant circuit

B - A/C Adapter Set - Adapter 1 :VAG1786/1 .

C - Commercially available charging hose (short version with 5/8" thread on each end).

D - A/C Adapter Set - Adapter 2 :VAG1786/2 (for connection of quick-release coupling of service station -E-).

NOTE:

Assemble the adapter and charging hose as shown and connect to connection with valve -A- first.

The A/C Adapter Set - Adapter 2 :VAG1786/1 is only to be used at connections with "small" valve insert (standard for connection with valve for A/C Refrigerant Low Pressure Switch :F73 and gradually introduced as of 10.94 also at compressor).

Instead of the A/C Adapter Set - Adapter 1 :VAG1786/1 , the A/C Adapter Set - Adapter 10 :VAG1785/10 can also be used (remove valve from A/C Adapter Set - Adapter 10 :VAG1785/10 or install valve opener in charging hose).