Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
Vehicle » Heating and Air Conditioning » Service Precautions » Technician Safety Information » Precaution For Leak Detection Dye  
  Precaution For Leak Detection Dye  


Precaution for Leak Detection Dye

  • The A/C system contains a fluorescent leak detection dye used for locating refrigerant leaks. An ultraviolet (UV) lamp is required to illuminate the dye when inspecting for leaks.
  • Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visibility of the fluorescent dye.
  • A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal should only be repaired after confirming the leak with an electronic refrigerant leak detector (J-41995).
  • Always remove any dye from the leak area after repairs are complete to avoid a misdiagnosis during a future service.
  • Do not allow dye to come into contact with painted body panels or interior components. If dye is spilled, clean immediately with the approved dye cleaner. Fluorescent dye left on a surface for an extended period of time cannot be removed.
  • Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
  • Do not use more than one refrigerant dye bottle (1/4 ounce / 7.4 cc) per A/C system.
  • Leak detection dyes for HFC-134a (R-134a) and HC-12 (R-12) A/C systems are different. Do not use HFC-134a (R-134a) leak detection dye in R-12 A/C systems or HC-12 (R-12) leak detection dye in HFC-134a (R-134a) A/C systems or A/C system damage may result.
  • The fluorescent properties of the dye will remain for over three (3) years unless a compressor failure occurs.