Using a 13 mm wrench, unscrew the nut...
...and remove the bracket from the bumper.
On the other side, remove the bumper cover.
Using a Phillips screwdriver to hold the screw from turning, unscrew the nut with a 10 mm wrench...
...and remove the side bumper trim.
We remove the second bracket and bumper pads in the same way.
Information taken from the website (vazbook.ru)
We assemble and install the bumper in the reverse order.