Removing and installing service connections (low and high-pressure sides) — AUDI

🧭 Before you start

Fits: Audi R8 (4S, 2015–)

• Opens: refrigerant (A/C)
• Also covered elsewhere: Air conditioner with refrigerant R134a87General notes on air conditioning systems

📋 Procedure

1. ⚠ Danger from escaping pressurised refrigerant.Frostbite on skin and other parts of the body.Extract the refrigerant and then immediately open up the refrigerant circuit.Extract the refrigerant again if more than 10 minutes have passed since the initial extraction and the refrigerant circuit has not been opened up. Renewed evaporation leads to the build-up of pressure in the refrigerant circuit. — Switch off ignition.
2. Discharge refrigerant circuit Air conditioner with refrigerant R134a87Refrigerant circuit (Air conditioner with refrigerant R134a; Refrigerant circuit; Working with the air conditioner service station).
3. Remove right flap (4) in luggage compartment trim panel General body repairs, interior70Luggage compartment trim panels; Overview of fitting locations - luggage compartment trim panels.
4. Unscrew caps (with seal) (1) or (2).
5. Remove valve insert (3) from service connection using socket T10364 and suitable adapter. [Note: For further information on the service connection, refer to Air conditioner with refrigerant R134a87General notes on air conditioning systems.]

6. Screw in valve insert (3) [Note: Tightening torques for valve insert (3) differ depending on the version Air conditioner with refrigerant R134a87General notes on air conditioning systems (Air conditioner with refrigerant R134a, General notes on air conditioning systems)]
7. Evacuate and charge refrigerant circuit Air conditioner with refrigerant R134a87Refrigerant circuit (Air conditioner with refrigerant R134a; Refrigerant circuit; Working with the air conditioner service station).
8. Re-install all components removed in reverse order.
9. Start up air conditioner after charging refrigerant circuit . [Note: Also observe notes on starting up air conditioner after charging Air conditioner with refrigerant R134a87General notes on air conditioning systems. Before using air conditioner after system has been re-charged.]
10. Interrogate the event memory of E87 and erase any faults displayed in "“Guided Fault Finding”" mode.
11. As a final step, check operation of heater and air conditioner.

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