Volkswagen Polo Service & Repair Manual: Expansion Valve

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / Refrigerant Circuit General Information / Refrigerant Circuit Components / Expansion Valve

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.

The expansion valve atomizes the streaming refrigerant and controls the flow quantity so that the vapor is gaseous only at the evaporator outlet, depending on the heat transmission.

Expansion Valve

Receiver/Dryer

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

O-Ring

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

Other materials:

Aqua Premium Application Instructions for Water-Soluble Products
Edition 06/2013 When working with water-soluble products, pretreat the base surface very carefully and only with water-soluble products and the recommended processing materials. Base Surface Pre-tr ...

Controls for the heating and fresh air system
Fig. 127 In the centre console: rotary controller of the heating and fresh air system with controls First read and observe the introductory information and safety warnings Button, control Additional information. Heating and fresh air system ...

Aqua Premium System, Touch-Up System for Two Layer Colors
Edition 04/2013 Product Description/Objective To achieve an optically flawless color shade transition in the blended area or adjacent parts, for example fender/door. Application Instructions ...