Volkswagen Golf Quiz
Air conditioning system with refrigerant R134a

Classification of extraction and charging devices in groups

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

Group 3:

Portable extraction and charging devices linking the air conditioning system to a fixed compressed gas container. The fixed compressed gas container is charged with refrigerant or refrigerant/oil mixture. The portable extraction and charging device is then permanently attached to the pressure vessel. In accordance with § 3 section 5 no. 3 of the Regulations for Pressure Tanks, in this case the terms "compressed gas container" and "pressure tank" are equivalent.

Charging devices require:

no permit

no checking by an authorised official, since the gas is held in the compressed gas container, which is equivalent to a pressure tank. (Devices for filling refrigerant from these pressure tanks into compressed gas containers that are intended for third-party use, in turn, require licensing and they are subject to checking by an authorised official.) Note The air conditioner service and recycling devices used in vehicle workshops are Group 3 extraction and charging devices which do not require a permit, but which can be operated only by skilled staff. Refer to the manufacturer's documentation for instructions on operating and maintaining these devices.

Test yourself

A quick Volkswagen Golf quiz: every answer comes with an explanation and a link to the manual page.