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:
Sun visors
Fig. 84 Sun visor
First read and observe the introductory information
and safety warnings Various positions for the driver and front passenger
sun visors:
Folded down over the windscreen.
Pulled out of the bracket and swung over towards the door .
Vanity mirror light
A vani ...
Assembly overview - suspension, multi-link suspension, front-wheel drive
1 -
Wheel bearing housing
Removing and installing
→ Chapter
2 -
Bonded rubber bush
Renewing
→ Chapter.
3 -
Bolt
Specified torque
͛ ...
Warning and indicator lamps
First read and observe the introductory information
and safety warnings
Lit up
Possible cause
Solution
Engine oil level is too low.
Switch off the engine. Check the engine oil level
.
...
