Adapter For Assembly Of Flushing Circuits

Adapter For Assembly of Flushing Circuits

- The following table lists the different adapters necessary for the connection of the A/C service station to the refrigerant circuit, flushing and bridging of the removed fluid reservoir or reservoir and the expansion valve (vehicle-specific).
- Connect the two adapters that were installed when reservoir or fluid reservoir was removed (included in adapter case for VW/Audi passenger cars VAS 6338/1 ) with a fill hose with connections 5/8 -18 UNF (short version e.g. fill hose VAS 6338/31 ).
- If a flushed refrigerant circuit is not reassembled immediately after flushing, adapters remain at connections and seal the connections at the adapters using shipping caps VAS 6338/30 (from adapter case for VW/Audi passenger cars VAS 6338/1 ).
- Depending on the version of the compressor and time period of production, different connection and sealing techniques can be found for the refrigerant circuit.







Block or threaded connections
- Threaded connection - A -
- Block connection - B -

Block connections with various types of sealing







- Block connection with radially sealed connection - A - (with plastic or metal guide - B - )
- Block connection with axially sealed connection - C -

Audi Q7







- In vehicles with two evaporators, refrigerant circuit is flushed in two work steps.