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

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A/C refrigerant system<br />

Página 9 de 21<br />

87-77<br />

Airborne properties<br />

Escaped refrigerant gases are heavier than<br />

air and will gather first in low places, like<br />

under the car. R-134a refrigerant gas<br />

displaces oxygen and may cause<br />

suffocation in low areas of poor air<br />

circulation.<br />

Refrigerant R-134a is not poisonous in any<br />

state (liquid or gas) and is safe when used<br />

properly.<br />

Affects on plastic<br />

Refrigerant R-134a will deteriorate some<br />

plastics. Therefore, when making system<br />

repairs, use only genuine VW replacement<br />

parts which are specified for use with R-<br />

134a refrigerant.<br />

Affects on metal<br />

In its pure state, refrigerant R-134a is<br />

chemically stable and will not attack iron,<br />

copper, brass or aluminum. However, the<br />

mixture of R-134a and PAG oil may<br />

deteriorate certain metals (copper).<br />

Therefore, when making system repairs,<br />

use only genuine VW replacement parts<br />

which are specified for use with R-134a<br />

refrigerant.<br />

Water solubility<br />

Liquid R-134a refrigerant will absorb only<br />

very minute quantities of moisture.<br />

However, R-134a vapor can absorb large<br />

amounts of moisture.<br />

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

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

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