Volkswagen Polo Service & Repair Manual: Restrictor

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

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 restrictor creates a constriction. This restriction reduces the flow and creates high and low pressure sides in the refrigerant circuit. Before the restrictor the refrigerant which is under a higher pressure is warm. After the restrictor the refrigerant which is under a low pressure is cold. Before the restriction there is a strainer for contaminants and after the restriction there is a strainer, to atomize the refrigerant before it reaches the evaporator.

Note

Arrow -A- on restrictor points to evaporator.

Replace after each opening of the circuit.

Note different versions.

Refer to → Rep. Gr.87.

Refer to the Parts Catalog.

Restrictor

Reservoir

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

Receiver/Dryer

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

Other materials:

Front view
Fig. 2 Overview of the front of the vehicle Key for : Rain/light sensor on the mirror base Windscreen Windscreen wiper Bonnet Bonnet release lever Headlights Headlight washer system Mounting for the front towing eye behind a cover Front number plate holder F ...

Centre armrest
Fig. 42 Front centre armrest First read and observe the introductory information and safety warnings To lift, pull the centre armrest up gradually in the direction of the arrow . To lower, pull the centre armrest all the way up. Then lower the centre armrest. WARNING The centre armrest ...

Warning lamp
First read and observe the introductory information and safety warnings Lit up Possible cause Solution At least one vehicle door is opened or not properly closed. Do not drive on! Open the appropriate vehicle door and then c ...