I I put a deposit down on a nice spec'd 03 S3 yesterday from a private buyer, having done a prelim HPI check and it all came out ok, HPI data ceck now want me to update with some document info that I only saw when viewing the car, ie after the first basic check. It asks for the v5 document serial number, and date of issue. Are these the items in the s9 of the new style v5s? it asks for MOT cert number, I entered the "test" number as its a new style computer MOT and it would not accept it? Any ideas Finally, and perhaps most unusually, the engine number per the V5c is shown as "NOT KNOWN". Its a one owner car, three years old, the guy has moved house one, but no other changes to the V5 (apart from change of address). Could it be that this info was just never input to DVLA at new reg? And then daft question, is there anyway of checking the engine number, perhaps to an audi dealer network computer, as there is no other doc to check it to? Any help appreciated guys.