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:

Diesel particulate filter
First read and observe the introductory information and safety warningsThe diesel particulate filter filters out soot particles in the exhaust gas. The soot particles gather in the filter and are burnt under high temperatures periodically (regeneration). Heat produced can warm the engine. ...

Corrective Action When Vehicle Pulls to One Side
Test Conditions Before and During the Road Test –  Check all suspension components on front and rear axle for damage. –  Check tire pressure and correct if necessary. –  ...

Refrigerant Circuit with Restrictor and Reservoir
Arrows point in direction of refrigerant flow. A-Low pressure side of refrigerant circuit. B-High pressure side of refrigerant circuit.         Component Aggregate state of refrigerant ...