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:
Releasing gas and draining front gas-filled shock absorbers, DCC shock
absorbers
–
Clamp gas-filled shock absorber vertically in vice.
WARNING
Safety goggles must be worn when drilling.
–
Drill a 3 mm hole -A ...
Removing and installing headlight washer system pump -V11-
Special tools and workshop equipment
required
Drip tray
Removing
–
Remove noise insulation
→ General body repairs, exterior; Rep. gr.66.
...
Stone chip guard -AKR 311 KD1 05-
Designation:
Stone chip guard -AKR 311 KD1 05-, black
Issued 04.2009
Product description
Stone chip guard -AKR 311 KD1 05- is a finely atomising
coating material on a synthet ...
