VW Polo manuals

Volkswagen Polo Service & Repair Manual: O-Ring

  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 manufacturer.
The warranty is voided if non-approved tools or materials are used.
All components of the refrigerant circuit submitted for quality observation are always to be sealed (use original sealing caps of original part).
Replace damaged or leaking components of refrigerant circuit. Refer to → Chapter „Components, Replacing“.
To date, the original parts (compressor, reservoir, receiver/dryer, evaporator and condenser) have been filled with nitrogen gas. This charge is being gradually discontinued. There is little or no pressure equalization when removing the sealing plugs from the original part.
   
These o-rings seal off the connection points between individual components of the refrigerant circuit.
Only O-rings that are resistant to refrigerant r134a and refrigerant oil must be installed. Make sure they are original replacement parts.
Refer to the Parts Catalog.
O-ring:
Always use only once.
Make sure diameters -a- and -b- are correct.
Coat with refrigerant oil before installing
  Note
The color coding of refrigerant circuit o-rings with R134a has been discontinued. Colored and black O-rings are used.
Refer to → Rep. Gr.87.
Refer to the Parts Catalog.
 

O-Ring

Expansion Valve
  Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the sys ...

Refrigerant Circuit Pipes and Hoses
  Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the sys ...

Other materials:

Discharge Refrigerant Circuit with A/C Service Station
  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...

Windscreen wiper functions
First read and observe the introductory information and safety warnings Windscreen wiper response in various situations: When the vehicle is stationary. When switched on, the wipers will temporarily be switched to the next setting down. Whil ...

Technical Requirements
Factory-Installed Trailer Hitch If the vehicle was already delivered from the factory with a trailer hitch, all of the technical and legal requirements for towing a trailer have already been taken into account. Note that a »13-pin« trailer ...

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