Volkswagen Polo Service & Repair Manual: Leaks or Internal Damage, for Example Noises or No Output

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / Components, Replacing / A/C Compressor, Replacing / Leaks or Internal Damage, for Example Noises or No Output

Note

For vehicles with an electrically-driven A/C compressor, de-energize the high voltage system before removing the A/C compressor. Refer to → Electrical System Hybrid; Rep. Gr.93.

–	Discharge the refrigerant circuit.

–	Remove the A/C compressor.

Note

In the case of internal damage (on A/C compressor), flush refrigerant circuit with refrigerant R134a. Refer to → Chapter „Refrigerant Circuit, Flushing (Cleaning) with Refrigerant R134a“.

If a different A/C compressor is installed with a different refrigerant oil, the refrigerant circuit is to be flushed with refrigerant R134a. Refer to → Chapter „Refrigerant Circuit, Flushing (Cleaning) with Refrigerant R134a“.

–	Replace receiver/dryer/dryer cartridge and expansion valve or reservoir and restrictor.

–	If a leak is present, check the expansion valve for debris or corrosion and replace if necessary.

–	Assemble, evacuate and charge the refrigerant circuit.

Flushing Not Necessary

Note For vehicles with an electrically-driven A/C compressor, de-energize the high voltage system before removing the A/C compressor. Refer to &# ...

Receiver/Dryer or Reservoir and Restrictor, Replacing

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Other materials:

Removing and fitting head restraints
First read and observe the introductory information and safety warnings Every seat is fitted with a head restraint. The centre rear head restraint is designed solely for use with the centre rear seat. This head restraint should therefore not be installed in any of the other positions. Remov ...

Battery with Visual Indicator, Standard
This is a maintenance-free battery with liquid electrolyte (wet battery). WARNING Do not check or charge batteries that have a visual indicator that is bright yellow. Jump starting must ...

Checking with Restrictor, Reservoir and A/C Compressor Regulator Valve -N280-, Externally Regulated A/C Compressor
Note Connecting service station. Refer to → Chapter „Connecting Service Station“. Observe test requirements. Refer to → Chapter „Pressures, Checking“. – ...