VW Polo manuals

Volkswagen Polo Service & Repair Manual: 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.
Group 3:
Mobile extraction and charging systems for filling compressed-gas vessels permanently connected to the system.
The refrigerant or refrigerant/oil mixture is transferred to compressed gas vessels which are permanently connected to the mobile systems. In accordance with 3 Para. 5 No. 3 of pressure vessel regulations, compressed-gas vessels are classified as pressure vessels in this case.
The charging systems require:
no permit
no expert testing as the gas is transferred to compressed-gas vessels which are classed as being pressure vessels. (Systems used for transfer from these pressure vessels to compressed-gas vessels for supplying to third parties do require a permit and are subject to mandatory testing).
  Note
The A/C service and recycling units used in motor vehicle workshops are extraction and charging systems not requiring a permit (Group “3”) but which are only to be operated by qualified personnel. Instructions for unit operation and maintenance can be found in the relevant manufacturer's documentation.
   
A/C Service and Recycling Units
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Charging Systems not Requiring a Permit
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 Pipes and Hoses
  Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system. Only use tools and materials approved by the manufactu ...

Battery with Visual Indicator, Enhanced
This is a maintenance-free battery with liquid electrolyte (wet battery).   Caution Do not remove any of the labels on the battery and do not add distilled water. Only perform a visual ...

Locking or unlocking the driver door manually
Fig. 155 Door handle on driver door with lock cylinder First read and observe the introductory information and safety warnings If locked manually, all doors are locked. If unlocked manually, only the driver door is unlocked. Observe information on the anti-theft alarm . Fold the key bi ...

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