- Jan 26, 2003
- 2015 Passat SE, 2002 Jetta Reflex Silver
I am curious about the foam pieces behind the NMS front fender liners. Having foam on the inside of the MK4 Jetta front fender liners proved to be a source for rusting of the front fenders. What is the purpose of the foam on the NMS? Is it blocking noise? Is it limiting abrasion of the fender liner on the sheet metal? I know it does a good job of absorbing water.