I think it'll be the base engine model , but if it's the ARD or BAM code they're the more desirable engine, (TT & S3 )
Either way the 20v motor should go on for a good while .
Strange the water pump is leaking, that should have been changed around the 60-80k mark along with the major belts , worth having a look through the history to see when they were last changed.
I'm pretty biased when it comes to VAG as had them for the last 20+ years and love them and volvo of course...
Probably not much help bet by the sounds of it get those leaks fixed and it'll be a decent car especially being a wagon..