buying an A3 2.0 tdi s line quattro...advise pls

hello im very close to buying an audi A3 2.0 tdi(140 ps) s line quattro...its a 55 plate. nothign else thats not standard. tho not brush aluminium on the door inserts or round the dearbox, its piano black. i havnt seen it in person yet its been brought round early next week. all sound good, thing is its got 28k mile son..and thats in just a year...i havnt had tonnes of cars n the couple ive had i got brand new and i tend to only do 9000 milesish a year so 28k in a year seems alot. basically i dont kno wwhat im asking but is that gonna be an issue to the car liek in the finish quality? they say (all salesmen do) that its in top condition etc but dont they always!!? so really just after a bit of advice on wether it seems ok etc or ne general thoguths on the A3 at all really. cheers