Volkswagen Polo Service & Repair Manual: Empty Refrigerant Circuit

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / Components, Replacing / Leaking or Damaged Components except A/C Compressor, Reservoir or Receiver/Dryer / Empty Refrigerant Circuit

–	Remove malfunctioning component.

–	Remove the A/C compressor.

–	Remove oil drain plug from A/C compressor.

Note

To speed up refrigerant oil drainage, turn A/C compressor by hand via ribbed belt or magnetic clutch plate.

Pour the used refrigerator oil out of the A/C compressor.

Then fill the A/C compressor with quantity of fresh refrigerant oil corresponding to quantity of refrigerant oil in original part compressor. Refer to → Rep. Gr.87.

Use different refrigerant oils and quantities for the various compressors. Refer to → Rep. Gr.87.

To ensure the compressor is lubricated at start-up, at least 80 cm³ of refrigerant oil must be poured into the compressor. The remainder can be added to the new reservoir or receiver/dryer. Refer to → Rep. Gr.87.

If dirt has penetrated into the compressor with the refrigerant circuit open (for example after an accident), compressor is to be replaced.

Flush the refrigerant circuit with compressed air and remove moisture with nitrogen. Refer to → Chapter „Refrigerant Circuit, Flushing with Compressed Air and Nitrogen“.

–	Replace receiver/dryer or accumulator and restrictor.

–	Assemble, evacuate and recharge refrigerant circuit.

Leaking or Damaged Components except A/C Compressor, Reservoir or Receiver/Dryer

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Refrigerant Still in Circuit

Discharge the refrigerant circuit. – Remove malfunctioning component, flush with compressed air, collect escaping refrigerant oil. ...

Other materials:

Replacing Reservoir, No Contaminants, No Loss of Refrigerant
Discharge the refrigerant circuit. – Replace the restrictor depending on the vehicle. – Remove receiver or accumulator. – Remove dirt from receiver or res ...

Battery, Testing using Midtronics Battery Tester -MCR340VKT
Requirements WARNING Read and follow the Safety Precautions when working with batteries. Refer to → Chapter „Warnings and Safety Precautions“. ...

Receiver/Dryer
Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system. Only use tools and materials approved by the manufactu ...