VCDS doesn’t work properly on newer Audis

[The_Laird]

Hoping this is the right place to put this. If not, mods, could you move it please?

I have a VCDS HEX+CAN for many years and it still works fine on my D2 S8 and my 2008 TTS. But recently, I’ve tried it on a more recent TT and a ‘22 A4. It connects and scans but I don’t get much information and it doesn’t clear error codes. It throws up a message along the lines of the interface not compatible. Is there a cut-off year? And do I need to buy another opne to diagnose more recent models?

Thanks, Jim

[MikkiJayne]

HEX-CAN works up to about 2018 I think, latest I've tried it on is 2014. For later stuff the HEX-NET is needed as the protocols changed beyond what the HEX-CAN dongle could cope with.

[HPsauce]

Indeed, I've occasionally tried to help my neighbours to diagnose issues with their VAG cars and while her old Polo is fine, their newer Audi Q3 is a waste of time.
Somewhere I've got a really old registered copy that I occasionally consider for a trade-in, but most people I know with newer VAG cars just go to the dealer so it's not worth doing. HEX-CAN is fine for the D2 obviously.

[The_Laird]

Thanks guys - that clears that up for me.