i'm assuming you do drive it with a modicum of mechanical sympathy given this is an engine your never here that many horror stories over
mines cracked 9k today, Stage 1 went on at 1k and Stage 2 at 2k and had zero mechanical issues, i'm on some aggressive settings and no clutch issues either, the only gripe is the door seals, admittedly i dont drive the door handles off it all the time
i'm always upfront with dealers about cars being modified and if they were uneasy i never use them, my dealer who supplied the car is mod friendly and has a keen interest in the car
when talking to the service manager last week he did say life would be easier if the car appeared with a stock engine file but they were not worried about the mechanical modifications, so today i popped into Revo who have flashed the stock file for a couple of weeks given VW's recent antics
my view is paying someone for the time to take the map off before you venture to VW with suspected gremlins is money well spent