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:
Checking inner constant velocity joint
The joint is to be dismantled to renew the grease if it is
heavily soiled, or to check the running surfaces of the balls
for wear and damage.
Note
The ball hub and joint body are paired. Mark position in
relation to each o ...
Technical data
Allocation gearbox - engine
Golf 2013 ►, Golf Estate 2014 ►
Always take account of the gearbox code if spare parts are
required for a repair.
...
Assembly overview - guides for bumper cover
Volkswagen R GmbH, optional equipment, “R Line” and “R”
Note
Different versions. For allocation see
→ Electronic Parts Catalogue “ETKA”.
1 ...
