Volkswagen Polo Service & Repair Manual: A/C Service and Recycling Units

Pressure Gauge, Tests and Measurements

Indicators on pressure gauge 1 -  Temperature scale for refrigerant R134a CF3–CH2F or CH2F–CF3. 2 -&nb ...

Extraction System Group Classifications

At this time, A/C service units for extracting, cleaning and filling refrigerant for motor vehicle A/C systems are available from various manufacturers. ...

Other materials:

Refrigerant Circuit Pressures and Temperatures
  WARNING When performing work on refrigerant circuit, observe all generally applicable safety precautions and pressure vessel regulations. The pressures and temperatures in ...

Odor from Evaporator or Heat Exchanger?
  Fishy smell –  From leak at cooling system of engine or of A/C system heater core.   Note If the fishy smell gets weaker when the temperature is set to “cold” and stronger when i ...

Introduction
This chapter contains information on the following subjects:  → Preparing the vehicle for working in the engine compartment  → Opening and closing the bonnet Always park the vehicle on a level and stable surface before carrying out any work in the engine compartment. The engine ...