VW Polo manuals

Volkswagen Polo Service & Repair Manual: A/C System, General Information

Refrrigerant R134a Servicing
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Introduction
The purpose of this Repair Manual is to provide foremen and mechanics with the basic knowledge needed to ensure expert working.   Note ...

Other materials:

Refrigerant Oil
Refrigerant oil mixes with the refrigerant (about 20 - 40%, depending on compressor type and amount of refrigerant) and circulates constantly in the system, lubricating the moving parts. Special synthetic refrigerant oils, for example, ...

Wear Spots
Wear spots are caused by a hard stop with locked wheels whereby the rubber compound is abraded from the contact patch. When the tires slide across the road surface, frictional heat is generated which reduces the abrasion resistance on the ...

6-Pin Universal Oxygen Sensor, Removing and Installing
  Note Use the faulty sensor as a guide for installing all of the accompanying attachments, cable ties or marking bands. Do not crimp or cut the wires otherwise the functionality of the heated oxygen sensor (HO2S) will ...

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