Volkswagen Golf Service & Repair Manual: 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 molecules of the warmer material and accelerates those with less heat. This continues until the molecules in both materials are moving at the same speed. They have the same temperature, and no further exchange of heat occurs.
Physical basics
The four known physical states of water also apply to air
conditioning refrigerants.
1 -
Gas (invisible)
2&nbs ...
Pressure and boiling point
The boiling points given in the table below are always based
on an atmospheric pressure of 1 bar. If the pressure on a liquid
is changed, its boiling point changes al ...
Other materials:
Refrigerant circuit with restrictor and reservoir
Arrows show the direction of refrigerant flow.
A- low-pressure side of the refrigerant circuit.
B- high-pressure side of the refrigerant circuit.
Component
Overall
state of the re ...
Assembly overview - brake servo/brake master cylinder, LHD vehicles
Note
Only use new brake fluid conforming to VW standard (VW 501 14).
1 -
Self-locking hexagon nut
Always renew after removing
Bolting sequence
U ...
Removing and installing window slot outer seal
Note
The core of the window slot outer seal is a metal
insert.
If it is bent or distorted, the window slot outer
seal cannot be straightened out anymore. It will remain
...
