Friend of mine Octavia Saloon rear window has dropped and he has taken the door card off to get access and have a look at what caused it.

He wants to know if drilling the rivets from the inner metal plate, is the only way to get it off to gain access to the window mechanism.

 

Also any advice on the issue would be greatly appreciated.

Yep. Drilling the rivets is the way forward. Quite rare for the rear window regulator to pack up. Most likely to be the plastic pin has fallen out of the window glass. This plastic pin is in 2 parts an outer plastic ring with a plastic pin. This pin goes through the regulator and through the glass. Iirc there is an inspection hole for the pin and it's fiddly and tricky but possible to fit another without removing the rivets or regulator.

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Thanks for the reply, I will let him know and see how it goes.

Window regulator needs changed, my Octavia done the same. Rear passenger side.

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