Hi all,
Going through the service folder for my B7 Passat, I came across this, don't know what it is and Google doesn't throw up anything (probably because I don't know what it's called).
It has 2 codes on one side and 1 code on the flip side.
Here's a pic (p.s. I covered the codes in case they were security related and shouldnt be shared )
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Black plastic tag found in service book
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