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MACS Tesla project

Hi MACS members!

MACS is working on a project, to collect A/C charge information for Tesla vehicles, and we need your help!

As you know, Tesla service information is not available through the aftermarket service information providers. But MACS often gets asked for Tesla A/C charge information. This is where CROWDSOURCING our members can help!

If you have a Tesla vehicle come into your shop, please take a few minutes to send MACS the following information:

  • Year / Make / Model
  • A/C system description (front only / front & rear / front & battery / front & rear & battery)
  • Picture of the VIN label
  • Picture of the A/C charge label (aka the J639 label)
  • Picture of the car (it’s always cool to see the car!)

Thanks very much for your help, and for making MACS the industry’s BEST resource for mobile A/C information!

Please email your information to Steve Schaeber, MACS manager of service training at

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