collos25 said:
If you want an educated and relevant answer, I took my heavily modified up! back to the dealership for the airbag recall and to fix the CD player which was refusing to eject the CD.
All was covered under warranty, and the only comment I got from the Service Manager was "I love your wheels, the guys in the Service Department couldn't stop talking about your car".
When I asked him about Warranty stuff, he said they only really get funny if you start mucking around with the engine i.e. remaps etc.
As stated, the warranty won't cover any non-VW replaced parts, or if these parts cause direct damage to any other part on the car.