VW Golf manuals

Volkswagen Golf Service & Repair Manual: Water content

Only very small amounts of water are soluble in liquid refrigerant. On the other hand, refrigerant vapour and water vapour mix in any proportion.
Any water present in the refrigerant circuit will be carried along as droplets. The dessicant, dessicant bag or dessicant cartridge in the receiver or reservoir are capable of holding approx. 7 grams of water before they are full and cannot absorb any more water. If there is further water in the circuit, it will flow to the expansion valve jet or to the restrictor and becomes ice.
The air conditioning system will stop cooling.
Water destroys the air conditioner because at high pressures and temperatures it combines with other impurities to form acids.
   
Combustibility
Refrigerant is non-flammable. On the contrary, it has a fire-inhibiting or fire-extinguishing effect. Refrigerant decomposes when exposed to flames or incandescent surfaces. UV light can also decompose refrigerants (UV is emitted by electric arc welding). Products of this decomposition are poisonous and must not be inhaled. However, these chemicals irritate the mucous membranes, giving adequate warning of their presence.
   
Effects on metal
In its pure state, refrigerant R134a is chemically stable and does not attack iron or aluminium. However, impurities such as chlorine compounds in th ...

Charge factor
There must be space both for liquid and vapour in a container. As the temperature rises, the liquid expands. The space occupied by the vapour becomes smaller. Eventua ...

Other materials:

Drawers
Fig. 116 Drawer under the front seat First read and observe the introductory information and safety warnings A drawer may be located under each of the front seats  . Opening or closing the drawer To open, press the button in the drawer grip and open the drawer. To close, push the dra ...

Removing and installing impact bar
  Volkswagen R GmbH, optional equipment, “R Line” and “R” Removing     –  Remove bolts -2-. –  Lift impact bar -1- upwards -arrows- ...

Renewing components
All components of the refrigerant circuit submitted for quality monitoring must always be sealed (use the original sealing caps from the genuine part). The genuine parts (air conditioner compressor, reservoir, receiver, evaporator ...

© 2016-2021 Copyright www.vwgolf.org