Underhood A/C Specification Labels

Most R-134a based systems will be identified through the use of underhood labels with R-134a refrigerant clearly printed on labels. See Fig 1 . Most manufacturers will identify refrigerant type with labels affixed to compressor. Before servicing an A/C system, always determine which refrigerant is being used.

Fig 1: Underhood Refrigerant Identification Labels (Typical)

Courtesy of CHRYSLER CORP.