Adapter For Assembling Flushing Circuit: Notes
- The following table lists the different adapters necessary to connect the A/C Service Station to the refrigerant circuit, to flush and to bypass the removed receiver/dryer or reservoir and expansion valve (depending on the vehicle).
- The adapter from the VW/Audi - Passenger Vehicle Adapter Set have 5/8" -18 UNF threads, so that the filling hose from the R1234y-A/C Service Station can be connected (M12 x 1.5-6G external thread according to SAE J639) an additional adapter from the set may be used (for example the Refrigerant Circuits - Adapter 48 :VAS6338/48 ).
- Connect the two adapters that were installed when reservoir or receiver/dryer was removed (included in VW/Audi - Passenger Vehicle Adapter Set) with a fill hose with connections 5/8 -18 UNF (short version for example Filler Hose).
- If a flushed refrigerant circuit is not reassembled immediately after flushing, adapters remain at connections and seal the connections at the adapters using Refrigerant Circuits Adapter Set 1 - Adapter 30 :VAS6338/30 (from VW/Audi - Passenger Vehicle Adapter Set).
- Depending on the A/C compressor version and the date of manufacture, different connection and sealing techniques can be found on the refrigerant circuit. Refer to REFRIGERANT CIRCUIT .
Block or Screw Connections
-- Threaded connection -A-
-- Block connection -B-
Block connections with different types of seals
-- Block connection with radially sealed connection -A- (with plastic or metal guide -B-)
-- Block connection with axial sealing connection -C-
| Assembling the flushing circuit | |
|---|---|
| Audi A1 | Audi A1 |
| Audi Q2, Audi A3, Audi Q3 and Audi TT | Audi Q2, Audi A3, Audi Q3 and Audi TT |
| Audi A3 e-tron | Audi A3 e-tron |
| Audi A4 | Audi A4 |
| Audi A5 Coupe and Sportback, Audi Q5, Audi A5 Cabriolet | Audi A5 Coupe and Sportback, Audi Q5, Audi A5 Cabriolet |
| Audi A6 (4G_ or 4X_ for China), Audi A7 (4G_ or 4X_ for China) | Audi A6 (4G_ or 4X_ for China), Audi A7 (4G_ or 4X_ for China) |
| Audi A7 (4K) | Audi A7 (4K) |
| Audi A8 (4H) | Audi A8 (4H) |
| Audi A8 (4N) | Audi A8 (4N) |
| Audi Q7, Audi Q7 e-tron | Audi Q7, Audi Q7 e-tron |
| Audi R8 | Audi R8 |