VW Golf manuals

Volkswagen Golf Service & Repair Manual: Physical basics

The four known physical states of water also apply to air conditioning refrigerants.
1 -  Gas (invisible)
2 -  Vapour
3 -  Liquid
4 -  Solid
 

Physical basics

When water is heated in a container (heat absorption), the rising water vapour is visible. If the vapour is heated by further heat absorption, the visible vapour becomes invisible gas. This process is reversible. If heat is extracted from gaseous water, it changes first to vapour, then to water and finally to ice.
A -  Heat absorption
B -  Heat dissipation
 

Physical basics

Basics of air conditioning
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Heat always flows from warmer to colder material
Every material consists of a mass of moving molecules. The fast moving molecules of a warmer material loose part of their energy to slower molecules possessing less heat. This slows down the molec ...

Other materials:

Removing and installing exhaust camshaft oil seal, gearbox end, engine codes CHPA, CMBA, CPVA, CXSA, CZDA, CZCA, CPVB
Special tools and workshop equipment required     Assembly tool -T10479 A- Removing –  Remove toothed belt pulley for coolant pump →  ...

Vapour pressure
In an enclosed container that is not completely full, refrigerant evaporates as vapour at the surface in a quantity sufficient to form an equilibrium between vapour and liquid. This equilibrium develops under pressure and is often called vapour pressure. ...

Headlight range control, instrument and switch lighting
Fig. 83 Next to steering wheel: headlight range control First read and observe the introductory information and safety warnings Headlight range control Depending on what level it is set to, the headlight range control   adjusts the position of the light cones in the headlights according ...

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