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:

Stowage compartment in the front passenger footwell
Fig. 99 In the front passenger footwell: stowage compartment for high-visibility waistcoat First read and observe the introductory information and safety warnings Opening and closing the high-visibility waistcoat stowage compartment To open, grip the handle (arrow) and pull the cover out of ...

Single Wire Seal Assembly Tools
Assembly tools serve the purpose of allowing the single wire seals to be slid without damage into terminal housing up to stop, this achieves a complete seal between single wire and terminal housing. Four assembly tools for single wire se ...

Adapter for Assembling Flushing Circuit
The following table lists the different adapters necessary to connect the service station to the refrigerant circuit, to flush and to bypass the removed receiver/dryer or reservoir and expansion valve (depending on the vehicle). Us ...