Volkswagen Golf Service & Repair Manual: Detecting leaks
External damage can cause leaks in the refrigerant circuit. Because a small leak will involve only small quantities of refrigerant, leaks should be checked for using an electronic leak detector or by introducing a leak detection additive to the refrigerant circuit. Electronic leak detectors can detect leakage rates of less than 5 grams loss of refrigerant per year. The leak detector should be specific to the composition of the particular refrigerant in use. For example, a leak detector for R12 refrigerant is not appropriate for R134a refrigerant because R134a refrigerant has no chlorine atoms to which the lead detector responds.)
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 ...
Refrigerant machine oil
Refrigerant machine oil is miscible (approx. 20%–40%
depending on the type of air conditioner compressor and the
quantity of refrigerant) in the refrigerant. I ...
Other materials:
Assembly overview - A-pillar trim
Note
The illustration shows the A-pillar trims on the left side.
The right-hand side is similar (mirror image of left-hand side).
Upper A-pillar trim and trim for triangular window
1 -& ...
Leaks at shock absorbers
Shock absorbers are often replaced because of externally
visible leakage. Inspections on the test rig and in the vehicle
have shown that in the majority of cases this replacement is not
justified.
Slight loss of fluid (“sweating”) at ...
Stand -VAS 6873/1
Designation:
Stand -VAS 6873/1-
Product description:
Stand -VAS 6873/1- with timer
Technical data:
220-240 V, 1 OH+PE
...