Audi A3 or BMW 116i as first car

Hey guys, I plan to buy my first car in half a year (on the 18th) and I got stuck looking around at Audi A3 and BMW 116i. The 1er should be approx. EZ 2006 and the A3 approx. EZ 2003, both running below 100,000km, price up to 5,000 €. Would you like to ask me now what you advise me and if jmd can give me information about which is cheaper in the maintenance and about how much it is. Thanks already in advance.