Volkswagen Touran Service Manual: Pressure Relief Valve

Volkswagen Touran Service Manual / Heating, Ventilation and Air Conditioning / Refrigerant Circuit General Information / Refrigerant Circuit Components / Pressure Relief Valve

Caution

Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system.

Only use tools and materials approved by the manufacturer.

The warranty is voided if non-approved tools or materials are used.

All components of the refrigerant circuit submitted for quality observation are always to be sealed (use original sealing caps of original part).

Replace damaged or leaking components of refrigerant circuit. Refer to → Chapter "Components, Replacing".

To date, the original parts (compressor, reservoir, receiver/dryer, evaporator and condenser) have been filled with nitrogen gas. This charge is being gradually discontinued. There is little or no pressure equalization when removing the sealing plugs from the original part.

The pressure relief valve is installed on the A/C compressor or receiver/dryer.

At a pressure of approximately 38 bar (551 psi) positive pressure, valve opens and closes again once pressure has dissipated (approximately 30 bar (435 psi)).

Refrigerant does not escape completely.

Depending on the version, a transparent plastic disc may be installed which breaks off as soon as the valve is activated.

Refrigerant Circuit Pipes and Hoses

Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the sys ...

Refrigerant Circuit Design

Refrigerant Circuit with Expansion Valve and Evaporator 1 - Evaporator 2 - Expansion Valve 3 - ...

Other materials:

Volkswagen Touran Owners Manual. Handbrake
Fig. 136 Handbrake between the front seats First read and observe the introductory information and safety warnings Applying the handbrake Lift the handbrake lever up fully. The handbrake is applied when indicator lamp lights up in the instrument cluster . Releasing the ha ...

Volkswagen Touran Owners Manual. Optical parking system (OPS) with all-round display
Fig. 146 OPS screen display: Obstacles in scanned or calculated area behind the vehicle Ⓐ or to the left side of the vehicle Ⓑ. Areas without scanned or calculated obstacles in front of the vehicle Ⓒ or to the right side of the vehicle Ⓓ First read and observe the introductory inform ...