So Audi a3 water leak in boot . Audi wanted £1000 to diagnose the leak . Using a watering can on my daughter’s car I poured upwards from light etc . When I got to the rubber seal where loom runs through the boot , it had not previously been repositioned by AUDI when they did another repair , leading to the water flowing straight in . Some ct1 clear adhesive has now fixed the issue in 30 mins at a cost of about 10p . AUDI you are bound to know these things but try to rip people off . Hope this helps others . Terry
