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:

Checking the electrolyte level of the vehicle battery
Fig. 141 In the engine compartment: removing the vehicle battery cover First read and observe the introductory information and safety warningsThe electrolyte level of the vehicle battery should be checked regularly in high-mileage vehicles, in hot countries and in older vehicle batteries. ...

Luggage compartment cover
Fig. 84 Open tailgate: raised luggage compartment cover Fig. 85 Behind the rear backrest: stowed luggage compartment cover First read and observe the introductory information and safety warnings When the tailgate is opened and closed, the luggage compartment cover is also raised and low ...

Locking or unlocking the driver door manually
Fig. 155 Door handle on driver door with lock cylinder First read and observe the introductory information and safety warnings If locked manually, all doors are locked. If unlocked manually, only the driver door is unlocked. Observe information on the anti-theft alarm . Fold the key bi ...