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:

Assembly overview - fuel delivery unit/fuel gauge sender, vehicles with auxiliary heater
1 -  Fuel delivery unit With fuel system pressurisation pump -G6-. With integrated fuel filter; fuel filter cannot be renewed separately Carrying out electrical test of fuel pump in Guided fault finding mode → ...

Reservoir
The reservoir collects the vaporised and gaseous mixture coming from the evaporator to ensure the air conditioner compressor receives only gaseous refrigerant. Gaseous refrigerant is formed from the vapour. Refrigerant oil flowing in the ...

Safety precautions when working on high-voltage system
Danger to life due to high voltage The high-voltage system is under high voltage. There is a risk of severe or fatal injury due to electric shock. –  Persons with life-preserving or other electronic medical devices in or on their body must not perf ...