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:
Removing and installing fuel gauge sender 2 -G169
Special tools and workshop equipment
required
Removal wedge -3409-
Special wrench -T10202-
Removing
...
Infrared heater -VAS 6879
Designation:
Infrared heater -VAS 6879-
Product description:
The infrared heater is used to dry putty, filler, base coat,
top coat and clear coat on vertical or horizontal surfaces.
...
Removing and installing B-pillar trim on front door
Note
Removal and installation are described only for the left side.
Removal and installation of the right side are similar.
Removing
–
Run door window down to bottom position.
–
Pull window channel -3- in area ...
