Volkswagen Golf Service & Repair Manual: O-ring

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / General information on refrigerant circuit / Refrigerant circuit components / 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 and its associated refrigerant oils. This is assured by using genuine replacement parts.

→ Parts catalogue

O-ring:

Never reuse seals!

Check that diameters -a- and -b- are correct.

Before fitting a seal, coat it lightly with refrigerant oil.

Note

The colour coding of O-rings for R134a refrigerant circuits has been discontinued. Coloured and black O-rings are used.

→ Rep. gr.87

→ Parts catalogue

O-ring

Expansion valve

The expansion valve atomises incoming refrigerant and regulates the flow so that, depending on the heat transport, the vapour does not become a gas until it reaches t ...

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 genui ...

Other materials:

Nuts and bolts
Loosen and tighten bolts and securing nuts for covers and housings diagonally. Avoid canting particularly sensitive parts such as comtrol motor with control unit. Loosen and tighten them diagonally in stages. ...

Removing and installing front passenger side window regulator button -E716-
Note The removal and installation procedures are described for LHD vehicles. Removal and installation for RHD vehicles are similar. Removing – Remove front door trim panel → ...

Overview of fitting locations - components not located in passenger compartment, Golf and Golf GTE, RHD vehicles
1 - Exhaust ventilation for passenger compartment Checking → Chapter Removing and installing → Chapter. 2 - Humidity sender for air conditioning system -G260- Check ...