Volkswagen Golf Quiz
Air conditioning system with refrigerant R134a

Charging refrigerant circuit using air conditioner service station

In this manual: Air conditioning system with refrigerant R134a
General body repairs, exterior — 230General body repairs, interior — 279General information, paint — 133Vechile- specific paint information — 27Heating, air conditioning — 156Auxiliary heater — 58Air conditioning system with refrigerant R134a — 1297- speed dual clutch gearbox 0CW — 544- cylinder injection engine(1.4 1 direct inction. turbocharger) — 182Fuel supply system - Petrol engines — 59Running gear, axles, steering — 221Brake system — 92Wheels and Tyres guide — 12Guide for using trailers — 11Wheels and Tyres Guide - General Information — 121Brake system (hybrid) — 73Electrical system — 326Communication — 65Electrical system, general information — 111
~2min read

WARNING High-voltage on high-voltage system. Danger of electric shock on air conditioner compressor! Models with a high-voltage system: now de-energise the high-voltage system → Electric drive; Rep. gr.93.
Always follow the procedure described in the user's manual for your air conditioner service station. Before charging the refrigerant, check the refrigerant oil quantity → Rep. gr.87. The entire refrigerant charging quantity can be introduced either into the high-pressure or the low-pressure side.

Charging the refrigerant circuit

  • Switch off ignition.
  • Evacuating refrigerant circuit using air conditioner service station → Chapter.
  • Turn handwheel of quick-release coupling adapters outwards (close).
  • Allow refrigerant to flow into charging hose.
  • Turn handwheel of quick-release coupling adapter inwards (do not overstress the valve) and charge system with prescribed quantity of refrigerant.
  • Switch off air conditioner service station.
Note If the air conditioner compressor was removed, the V-belt pulley /freewheel must be turned by hand approx. 10 times prior to initial operation. This does not apply for the electrical air conditioner compressor. This prevents any damage occurring from a fluid hammer in the air conditioner compressor when the air conditioning system is switched on for the first time. If there is oil in the cylinder of the air conditioner compressor, it will be forced out by the rotation.
  • Start with engine with air conditioner compressor switched off (if it is the type with a magnetic clutch).
  • Set air conditioner compressor to lowest possible setting; select "ECON" mode or "A/C Off" (if version without magnetic clutch, but with regulating valve).
  • Wait until idling speed has stabilised.
  • Switch air conditioner compressor on and let system run for at least 2 minutes with engine idling.
  • If necessary, check pressures in refrigerant circuit using air conditioner service station.
  • Switch off engine.
  • Turn out handwheel on quick-release coupling adapter.
  • Detach the charging hose from the refrigerant circuit.
  • Screw on sealing caps again.

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