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:
Overview of fitting locations - infotainment system
1 -
Multifunction buttons in steering wheel
Multifunction buttons on left in steering wheel -E440-
Multifunction buttons on right in steering wheel -E441-
Removing and installing
→ Chapter.
2&nb ...
Overview of fitting locations - parking brake
1 -
Hexagon socket head bolt
8 Nm
2 -
Parking brake motor
Left parking brake motor -V282-, fitting location: on rear left
brake caliper
Right parking brake motor -V283-, fitting location: on ...
Charging, replacing, disconnecting and connecting the vehicle battery
First read and observe the introductory information
and safety warnings Charging the battery
The vehicle battery should be charged by a qualified workshop, as the technology
used in factory-fitted batteries requires voltage-limited charging . Volkswagen
recommends using a Volkswagen deal ...