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Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

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Components, replacing<br />

Página 1 de 7<br />

00 - 8<br />

Components, replacing<br />

- All components of the refrigerant circuit submitted for<br />

quality observation are always to be sealed (use original<br />

sealing caps of replacement part).<br />

- To date, the following replacement parts (compressor,<br />

reservoir, receiver, evaporator and condenser) have been<br />

filled with nitrogen gas. This charge is being gradually<br />

discontinued/the pressure of the nitrogen charge is now so<br />

low that escape of gas is no longer perceptible on initial<br />

opening.<br />

- On vehicles installed with a compressor with no A/C<br />

clutch, the engine is only to be started following complete<br />

assembly of the refrigerant circuit (compressor always in<br />

operation as well) 00-1, Basic rules for working on<br />

refrigerant circuit .<br />

- So that the compressor with A/C Compressor Regulator<br />

Valve N280 (without A/C clutch) is not damaged when the<br />

refrigerant circuit is empty, it is equipped with a secured oil<br />

supply. This means that approx.40 to 50 cm 3 of refrigerant<br />

oil remains in the A/C compressor 00-1, Basic rules for<br />

working on refrigerant circuit .<br />

Note:<br />

- As parts are sometimes stored for lengthy periods and at<br />

different locations within the spare parts organization, it is<br />

entirely possible that gas will escape from some parts and<br />

not from others on initial opening (even in the case of<br />

identical spare part numbers). Sealing caps at replacement<br />

part connections are therefore to be removed carefully and<br />

the nitrogen gas allowed to escape slowly.<br />

- The refrigerant circuit is installed either with a restrictor<br />

and reservoir or an expansion valve and receiver.<br />

- Seal open connections and pipes (to prevent absorption<br />

of moisture).<br />

- Always replace restrictor.<br />

- Reservoir / receiver or desiccant bag/dryer cartridge must<br />

not be replaced under the following conditions.<br />

- After an accident, however there is no damage at<br />

reservoir / receiver.<br />

- <strong>Repair</strong>s are performed quickly (not beyond the normal<br />

repair time) and no moisture has penetrated. Vehicle is not<br />

older than 5 years.<br />

http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...<br />

13/2/<strong>2005</strong>

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