Volkswagen Golf Service & Repair Manual: Pipes and hoses in refrigerant circuit

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / General information on refrigerant circuit / Refrigerant circuit components / Pipes and hoses in refrigerant circuit

The mixture of refrigerant oil and refrigerant R134a attacks certain metals (e.g. copper) and alloys and dissolves certain hose materials. Therefore, always use genuine replacement parts.

The hoses and pipes are held together with screwed joints or special push-fit joints.

Note

When assembling screwed joints, be careful to comply with the prescribed torques, and when working on push-fit joints, be careful to use the disconnection tools provided.

O-ring

These O-rings seal the joints between the individual components of the refrigerant circuit. Use only seals that are resistant to refrigerant R134a an ...

High-pressure safety valve

The high-pressure safety valve is fitted to the air conditioner compressor or the receiver. The valve opens at a pressure above approx. 38 bar and ...

Other materials:

Gaskets, seals
After removing gaskets and seals, always inspect contact surface of housing or shaft for burrs resulting from removal or for other signs of damage. Before installing seals, lightly oil outer diameter and half-fill space between sea ...

Checking tyres
As tyre damage can have serious consequences, you and the driver should regularly check the tyres to identify any problems at an early stage. Damaged tyres cannot withstand driving conditions such as high speed, long distances, sporty dr ...

Removing and installing windscreen washer fluid level sender, »R«
Special tools and workshop equipment required Drip tray Note Dependent on the equipment level, the windscreen washer fluid level sender -G33- may either be renewed individually or together with ...