AUTOBARN PORT MACQUARIE - hi so there are 2 different radiators depending which 2l motor your q3 has the 1st radiator with the part number is uau-34xxxxxxand costs $400 and the other radiator part number is uao-34xxxxxxand is priced at $260 to work out what unit it is i will need to sight the car or i will need the vin number any questions please call on 0265xxxxxx