I had a small ding in one my center parking sensors and I tried to get it warrantied since it kept giving me an error every time I slowed down. I was told that that VW issued a service bulletin not to warranty the sensors. For reference, they quoted me 540$ to replace. I ordered the part from OEM part source, it was around 120$ and was able to change it out in less than 5 minutes by reaching through the bumper on either side of the sensors and releasing the clips that are on the top and bottom. Just wanted to let people know because I've noticed other people have had issues with their sensors and I don't want them to get ripped off by the dealer.