The A3 8l has got a leak in the pipe that goes from the air con unit to the radiator down by the horn. The rad has been moving around because it has two screws missing from it, and it has rubbed a hole in the aluminium on the pipe. this has been done on one of the FMI pipes. Audi want £109.80 + vat my A3 is a 1.8T on a 99 plate, has anyone got a spare, or know where i might get one cheaper?