Volkswagen Golf Service & Repair Manual: Clearing refrigerant circuit of contaminants

Detecting leaks in refrigerant circuit using leak detecting system -VAS 6196- or leak detecting system -VAS 6201- or a later model

  Note Small leaks can be detected with, for example, an UV leak detector additive. –  Evacuate refrigerant circuit using a ...

Blowing through refrigerant circuit with compressed air and nitrogen

Use compressed air to force moisture and other contaminants out of the refrigerant circuit and use nitrogen to force moisture out of the refrigerant circuit. ...

Other materials:

Vibration, conducting a road test before balancing wheels
If a customer brings a vehicle to the workshop complaining about “vibration”, a road test is essential prior to balancing the wheels. This will give you information about the nature of the vibration. ...

Removing and installing emergency call module control unit and communication unit -J949-, eGolf
The emergency call module control unit and communication unit -J949--1- is fitted behind the dash panel insert.     Set emergency call module control unit and communication unit -J949- to workshop mode ...

Removing and installing fresh air/recirculated air, air flow flap control motor -V425-, RHD vehicles
Special tools and workshop equipment required Vehicle diagnostic tester   Note The control motor has end stops with integrated limit switches instead of a potentiometer. First ca ...