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.)
Introduction
This chapter contains information on the following subjects:
→ Controls for the air conditioning system  
→ Operation via the infotainment system  
→ Controls for the heating and fresh air system  
→ Information on the air conditioning system  
↠...
Extraction and charging valve, high-pressure side
Note
Torque wrench -V.A.G 1783- with 1/4" ratchet adapter -VAS
6234-
Appropriate insert -T10364- to remove valve core
→ Fig.
1 -
Base with external or internal thread
...
Assembly overview - rear door trim
Note
The assembly overview is shown for the rear door trim on driver
side. The assembly overview for the front passenger side is analogous.
1 -
Door trim
Removing and installing
→ Chapter
2 -
Rear d ...