Have just had to do this, courtesy of someone in a French car park.
In my Pug, the lower fixing for the vertical window guide is not screws (Haynes manual) but a nut and a peg. To get access, you have to remove the trim panel. I couldn't get the guide out without gently bending the bracket rearwards to clear the fixed bolt.
Putting the new window (a fifth of the cost from a scrappy) in seemed impossible. Put the glass into the rubber, then lubricate the rubber top and bottom with silicone spray or washing up liquid. The whole goes in backwards from a horizontal position, rotating the top backwards into position. This won't happen without the lubrication.
Lastly, dropping the window guide back in was tricky - I waggled it backwards and forwards at the top to get the peg and fixed bolt past the rubber seal.
I bet some mechanic will be falling around laughing at my amateurism, but I wasn't paying out loads, just because some scrote tried to get into the car (they took nothing, despite the back being full of all our holiday stuff).
TonyRick
rear quarter light replacement
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