Remove the door trim (see Replacing door trim).
Disconnect the lock drive rod from the guide groove (see Replacing the rear door lock drive).
Using an 8 mm spanner, unscrew the bolt and nut securing the groove...
...and we lower it, disengaging it from the rack.
(The material is posted on the online resource: VAZbook)
Having lowered the glass, we unscrew the screws that secure it to the window lifter cable using a Phillips screwdriver. We lower the glass until it stops against the lower roller.
Using a 10 mm spanner, loosen the window regulator tension roller.
Having removed the cable from the lower roller, we fix it on the door in a taut state. We remove the glass from the roller and lower it to the stop.
We take out the upper seal.
Using a Phillips screwdriver, unscrew the rack mounting screw.
Together with the fixed glass, we move the pillar forward, pushing apart the seals of the chrome edgings.
Remove the outer and inner chrome trims (see Replacing the front door drop glass).
We take out the sliding glass from the door.
We install the glass in reverse order.