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:

A/C System, Operating after Charging
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. ...

Tread depth and wear indicators
Fig. 147 Tyre tread: wear indicators First read and observe the introductory information and safety warningsTread depth Difficult driving situations demand the deepest possible tread depth for the tyres and the same tread depth for the tyres on the front and rear axles. This applies in pa ...

Cavity Sealant
Definition: Cavity Sealant -D 330 KD1 A2- Cavity Sealant -D 330 KD2 A1- Edition 04/2010 Product Description Cavity Sealant -D 330 KD1 A2- and Cavity Se ...