We remove the door upholstery to access the lock and power window mechanisms.
Pry off the latch of the window handle with a screwdriver (insert a screwdriver between the latch and the washer).
We take out the latch.
Remove the handle and washer.
Using a slotted screwdriver, remove the door handle cover.
Using a Phillips screwdriver, unscrew the two screws on the bottom of the handle to the door...
... and one screw - the top mount.
We take the pen.
Use a slotted screwdriver to pry the lining of the inner door handle...
...and remove the cover.
We pry eight pistons with a screwdriver (two on the leading edge, two on the trailing edge, and four on the bottom).
We remove the upper edge of the upholstery from under the flanging..
... and remove the door trim.
Under the upholstery there is a vapor barrier film.
To replace the piston..
... turn it 90°and take it out of the groove.