Volkswagen Golf Quiz
Air conditioning system with refrigerant R134a

O-ring

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
~1min read

Use only O-rings that are resistant to refrigerant R134a and related refrigerant oils. O-rings are no longer colour-coded. Coloured and black O-rings are used.

Check that the O-rings used have the correct internal diameters.

→ Rep. gr.87

→ Parts catalogue

Never reuse O-rings.

Before installing, moisten O-rings lightly with refrigerant oil (PAG oil).

Note When purging components with compressed air and nitrogen, always collect the gas mixture exiting the component with suitable exhaust gas extraction equipment (workshop fume extractor). After completion of repair work screw sealing caps (with seals) onto valve and service connections. Before operating the air conditioning system. Check the vehicle-specific charge quantities → Rep. gr.87. Do not top up a charged refrigerant circuit; discharge refrigerant present and recharge system.

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