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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 B >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Heating & Air Conditioning (A3 Platform)) >> Air Conditioning >> A/C refrigerant system (R-134a), safety measures >> A/C refrigerant R-134a, properties >> Effects on plastics

Effects on plastics

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Refrigerant R-134a will deteriorate some plastics. When system temperature drops, these plastics can be deposited at the expansion valve or restrictor causing blockage. Therefore, when making system repairs, use only genuine VW replacement parts which are specified for use with the R-134a refrigerant.