Rear double glazed window misting up

[Volkywagen]

Hi all. I’ve just noticed today that the rear window is misting up and I can’t wipe it of
The DG seal has obviously gone and I’ll get it sorted under its warranty but wanted to know if anybody else has had this problem and if your dealer replaced with a genuine rear window, did a good job and that it’s been ok since?
looking forward to responses

 

[TripleBee]

I think all of my double glazed windows are suffering this.
I had one replaced under warranty. Replaced by an original, and this one doesn't mist up (9 years after replacement).
It was the rearest right window replaced.
The rearest left window is heavily misted, the sliding door window is beginning to, and the rear window also has a spot in the middle where it is starting.

 

[Volkywagen]

Rear window in the middle at the base