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:
Opening or closing the windows electrically
Fig. 39 In the driver door: buttons for
the front and rear electric windows
First read and observe the introductory information
and safety warnings Buttons in the driver door
Key for :
For the windows in the front doors.
For the windows in the rear doors.
Safety button.
...
Assembly overview - rear lid
1 -
Rear lid
Removing and installing
→ Chapter
Adjusting
→ Chapter
2 -
Bonnet lock
Removing and installing
→ Chapter
3 -
Bolts
Qty. 2
20 Nm
...
Vehicle lifting points
Fig. 205 Lifting point at front for the
lifting platform or vehicle jack
Fig. 206 Lifting points at rear for the
lifting platform or vehicle jack
First read and observe the introductory information
and safety warnings The vehicle may only be lifted at the points shown in
the illustrati ...
