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 - gas discharge headlight with cornering light and LED
daytime running light
1 -
Headlight
Removing and installing
→ Chapter
2 -
Front turn signal bulb
Front left turn signal bulb -M5-
Front right turn signal bulb -M7-
Removing and installi ...
Frequently asked questions
If you suspect that there is a fault in the vehicle or if your vehicle has been
damaged, read and observe the following information before contacting
a Volkswagen dealership or qualified workshop. You may also find useful information
in the index under the headings Things to note or Checklist. ...
Assembly overview - knee airbag
1 -
Knee airbag with driver side knee airbag igniter -N295-.
Removing and installing
→ Chapter
Caution
Any risk of damage to the knee airbag surface due to
mechanical stress must ...