Window rattle

[middle-englander]

Hi all,

I've noticed that the tailgate window I fitted has a bit of a rattle when driving.
If I tap it I can hear it also, not sure what's happening with it...gap in the adhesive perhaps?

I've linked a video which shows it.
Video

Any ideas?

 

[DXX]

I think there would need to be a lot of adhesive missing to make a noise when you hit it all the way around.
Try getting a hose pipe on it close up around the outer edge, if there’s adhesive missing it should leak.