Mobile A/C system contamination concerns

Just because a vehicle is equipped with a retrofit label and conversion fittings, it would not be wise to assume that the refrigerant in the system is a match to the fittings and
the information on the label. There have also been cases of CFC-12 systems being directly charged with HFC-134a,with no labels, fittings, or any other type of indication that
this was done. A vehicle could have passed through any number of hands before entering your shop, and there’s no telling what could have happened along the way.

Also keep in mind that even approved chemicals, such as dye or lubricant, can become contaminants if they are in a system in excessive amounts. This also applies to approved
OEM vehicle/system manufacturers’ flushing material that may not be completely removed from a system at the conclusion of a flushing procedure.

The Mobile Air Conditioning Society’s blog has been honored as the best business to business blog in the Automotive Aftermarket by the Automotive Communications Awards and the Car Care Council Women’s Board!

When having your mobile A/C system professionally serviced, insist on proper repair procedures and quality replacement parts. Insist on recovery and recycling so that refrigerant can be reused and not released into the atmosphere.

If you’re a service professional and not a MACS member yet, you should be, click here for more information.

You can E-mail us at or visit to find a Mobile Air Conditioning Society member repair shop in your area. Visit to find out more about your car’s mobile A/C and engine cooling system.

The 32nd annual Mobile Air Conditioning Society (MACS) Worldwide Convention and Trade Show will take place January 18-20, 2012 at the Rio All Suite Hotel and Casino in Las Vegas, NV.


About macsworldwide

Mobile Air Conditioning Society (MACS) Worldwide Founded in 1981, MACS is the leading non-profit trade association for the mobile air conditioning, heating and engine cooling system segment of the automotive aftermarket. Since 1991, MACS has assisted more than 600,000 technicians to comply with the 1990 U.S. EPA Clean Air Act requirements for certification in refrigerant recovery and recycling to protect the environment. The Mobile Air Conditioning Society (MACS) Worldwide’s mission is clear and focused--as the recognized global authority on mobile air conditioning and heat transfer industry issues.
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4 Responses to Mobile A/C system contamination concerns

  1. What you mention about is true. It is not easy to know if refrigerant matches the fittings and the label. Many people including me always assume that. Thanks for sharing.

  2. What is the newest technology that’s getting away from freon?

  3. Most people assume that it is so. They assume that the profuct matches the label. Some of know different. Thanks for this article. perhaps it will help some people begin to pay more attention.

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