Are these worth it ?

i would say dont waste your money and get it scanned via vag
 
That's just a generic OBD scan tool. They are very basic and can be a bit vague with fault code descriptions.

I'd get someone close to you with VCDS to give your car a full scan. VCDS MAP LINK
 
Couldn't say for sure. Drop NHN a PM, he was the cheapest i could find.
 

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