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Discussion Starter · #1 ·
I recently purchased a used 2018 Q5. I took it for the Maryland emissions test and the attendant said that there was a "tracker" attached to my ODB unit? He wasn't sure it was a tracker but he said he had to disconnect it before he could do the test and then he put it back in. Pictures attached. A little paranoid and not sure the attendant knew what he was talking about so I am asking here... Is this a tracker that was left from the original owner or is this something that is normal and part of Audi's ODB system?
Any help is appreciated



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