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 accelerator module -GX2-
Removing
–
Fold floor covering -1-
forwards in -direction of arrow-.
–
Release and pull off connector -2-
...
Fitting locations overview - TV system
1 -
Display unit for control device of front display and information
control panel -J685-
Removing and installing
→ Chapter „Removing and installing radio -R-, Composition Touch and
Composition Colour version“
Re ...
Assembly overview - bumper cover
Note
Minor differences may be encountered in respect of bumper cover,
depending on vehicle model.
1 -
Bumper cover
Material PP/EPDM
Removing and installing
→ Chapter.
2 -
Bolt
Left and ri ...
