Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN2017GTI AUTOBAHN, AUTOMATIC DCT TRANSREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSAIR CONDITIONING SYSTEM (GENERAL & SERVICE INFORMATION - REFRIGERANT R1234YF - 1 OF 387 AIR CONDITIONINGREFRIGERANT CIRCUITREFRIGERANT CIRCUIT, CLEANINGREFRIGERANT CIRCUIT, CLEANING PROCESS
2017 Volkswagen GTI Autobahn, Automatic DCT Trans
Refrigerant Circuit, Cleaning Process
2017 Volkswagen GTI Autobahn, Automatic DCT TransSECTION Refrigerant Circuit, Cleaning Process
NOTE:
The progress takes place automatically according to the A/C Service Station program. Refer to A/C Service Station Owner's Manual.
- After switching on the flushing circuit (refrigerant circuit with connecting hoses and the flushing circuit for the refrigerant circuit) is evacuated first and at the same time the refrigerant circuit is checked for leaks (depending on the A/C Service Station version, it is possible that manually switching to advance the program is required).
- After the refrigerant circuit is checked for seals after evacuating, the flushing circuit/refrigerant circuit is checked for correct assembly by filling a specific quantity of refrigerant.
- After a pressure test the refrigerant is extracted, the refrigerant circuit is evacuated if necessary and the cleaning (the flushing process) begins.
- A prescribed quantity of refrigerant (depending on the internal volume of the flushing circuit for example 3 kg (6.6 lbs) is filled into the refrigerant circuit via the high pressure side of the A/C Service Station (in opposite direction of normal flow when A/C system is in operation and also on the low pressure side of the vehicle refrigerant circuit), or, as much refrigerant is filled until refrigerant circuit and viewing glasses of refrigerant circuit flushing device are completely filled with fluid refrigerant (depending on version of A/C Service Station, recognized for example that refrigerant no longer flows from behind over a certain time period).
- After the prescribed quantity of refrigerant has been filled, the heater for the refrigerant circuit flushing device is switched on, for example (only if the refrigerant is extracted in gaseous form from the refrigerant circuit flushing device), depending on the version of the A/C Service Station and refrigerant circuit flushing device.
- After the refrigerant was extracted, the heating of the flushing device for refrigerant circuits is switched off (if present), it may occur that the refrigerant circuit is shortly evacuated again, depending on its version. After evacuation, the refrigerant extracted from the refrigerant circuit is separated by the A/C Service Station.
- The sequence of charging, extracting (and evacuating) the refrigerant is repeated three times (performed a total of four times).
- After the fourth extraction, the flushing circuit is evacuated depending on the version of the A/C Service Station.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.