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:
Removing and installing brake servo, right-hand drive vehicle
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
Torque wrench -V.A.G 1410-
...
Air conditioning system pressure switch -F129
This pressure switch has 3 functions:
1. Switches radiator fan to next higher speed when pressure
increases in refrigerant circuit (approx. 16 bar).
2. Switches the air conditioning system off in the event of
excess ...
Loosening and tightening threaded connections of drive shaft
Special tools and workshop equipment
required
Socket, 24 mm -T10361A-
Angle wrench -V.A.G 1756 A-
...
