Underhood A/C Specification Labels

Most R-134a based systems will be identified through the use of underhood labels, or with R-134a refrigerant clearly printed on labels. See Fig 1 and Fig 2 . Labels may be located on underside of hood, compressor, firewall and/or strut supports. Before servicing an A/C system, always determine which refrigerant is being used.

Fig 1: Underhood A/C Specification Label (Typical)

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: A/C Specification Labels Located On Compressor (Typical)

Courtesy of NISSAN MOTOR CO., U.S.A.