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:
Checking steering column for damage
Visual check
–
Check all steering column parts for damage.
Checking function
–
Check that steering column turns smoothly and easily.
–
Check whe ...
Sensors
Removing and installing steering angle
sender -G85-
Note
The steering angle sender -G85- is a component of the
steering rack.
It cannot be renewed as an individual part.
...
Identification of Valeo heater and air conditioning unit
Note
Pay attention to correct assignment when replacing
components. The combination of different makes of component is
not permitted
→ Electronic Parts Catalogue.
–
Remove left centre console trim ...
