VW Polo manuals

Volkswagen Polo Service & Repair Manual: Refrigerant Circuit Connections with Valve for Switches

  Note
For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit.
Refer to → Rep. Gr.87.
  WARNING
There is a danger of ice-up.
Refrigerant will leak out if refrigerant circuit is not discharged.
Refrigerant must be extracted before removing valve -C-. If refrigerant circuit is not opened within 10 minutes of extraction, pressure may form in refrigerant circuit due to evaporation. Extract the refrigerant once more.
Different threads for switch on high pressure and low pressure sides.
   
Only valves and o-rings that are resistant to refrigerant R134a and refrigerant oil must be installed.
A -  Connection (soldered in)
B -  O-Ring
C -  Valve (with o-ring)
 

Refrigerant Circuit Connections with Valve for Switches

A/C Refrigerant Low Pressure Switch -F73
  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

A/C Pressure Switch -F129
  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

Other materials:

Fold Corrosion Servicing Notes
Corrosion on the Fold Edges, for Instance on the Hood, Door or also the Rear Lid –  Remove the corroded areas with → Chapter „Pneumatic Brush Grinder Set -VAS6446-“ or → Chapter „Brush Grinder Set ...

Repair Instructions for the Underbody and Stone Chip Protection
  Note The underbody and stone chip protection structure must be restored back to its original layer strength and appearance during a repair. Water drain holes must remain free. All threade ...

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 → Electrical System Hybrid; Rep. Gr.93. –  Dischar ...

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