Audi R8
| Vehicle | Required adapters for the connections to A/C compressor | Required adapters for the connections to the receiver/dryer (with dryer) | Miscellaneous |
|---|---|---|---|
| Audi R8 (4S_) from MY 2017 | -- Compressor manufacturer "Denso" (block connections with radial sealing)
|
Receiver/Dryer-- Block connections with radial sealing at input and output
|
Expansion valve is removed and Refrigerant Circuits Adapter Set 1 - Adapter 44:VAS6338/44 is installed (or an old expansion valve is drilled on and installed as an adapter). Refer to Cleaning The Refrigerant Circuit, Preliminary Work (Flushing With Refrigerant R1234YF) and the Parts Information. The receiver/dryer is removed and both refrigerant line connections are connected to each other using two adapters Refrigerant Circuits Adapter Set 1 - Adapter 45:VAS6338/45 and a commercially available filler hose (short version with 5/8" thread on both sides). |
Depending on the engine, the A/C compressor can only be removed when the engine is removed on the Audi R8. To flush the refrigerant circuit, the refrigerant lines can be removed when the A/C compressor is installed. Refer to REFRIGERANT CIRCUIT [For engine(s) CTUA, CAED, CREH, CEUC, CTGE, CREC, CYNB, CPNB] With the A/C compressor installed the refrigerant oil quantity in the A/C compressor cannot be determined, for this reason flushing the refrigerant circuit with the A/C compressor installed would not be productive.
Both installed condensers are flushed in opposite direction of the refrigerant flow direction.
A short version of the filler hose is also included in the Refrigerant Circuits Adapter Set 1:VAS6338/1 .
The receiver/dryer could potentially be flushed but it will take too much refrigerant because of its large internal volume; the receiver/dryer would ice-up too much when extracting the refrigerant, the refrigerant would evaporate too slowly and extraction would be prolonged too much.