willald wrote:
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
Sounds reasonable, not proof positive but possible. There could also be other factors like parking under shade, different brand of vent, or bad batch of vents.
