Take the lower trim off and check the part number on the ECU itself.I have a 2007 Ibiza Ecomotive which looks like it has the 6Q2. I have a picture but can't link to it as I am a newbie...
However, according to post 400663 (Google "400663 seatcupra") it appears that sometimes what appears to be a 6Q2 is actually a 6Q0.
Is there any way of checking further without getting a cable and plugging in?
Am in the Oxford area if that helps!