beemerphile1 wrote:
A test that would lend credence to the theory of the cushion causing the problem would be if you had another vent that you did not use a cushion. If the vent without a cushion was still sound and solid, empirical evidence would be that the cushion was to blame.
...And that is exactly the case, beemerphile. I have two vents, one I used the cushion on, the other I did not. The one that had the cushion in it disintegrated, the other one is perfectly fine.
That's why I blame it on the cushion. No doubt the sun will eventually destroy them regardless, but it definitely seems like the cushion makes it happen much faster.
Looks like when I look for a replacement for this vent, need to find one that is a made of a material a bit more resistant to UV than the original one was.
Will
