Harry mcC

Hello Friends, so I purchased a New RS3 last year and love it. In the past few months I have been loosing a little water and after looking on here it was suggested to be the water pump. So back to the dealer and yes it is, however as I re mapped it to stage 1 they are refusing to fix it under warranty even though it’s a common fault and nothing to do with the re map. Has anyone had this issue and how did you resolve it. thanks.