You will need: a screwdriver, a 10 mm socket head, and a ratchet.
1. Remove the four rubber plugs from the trunk lid reinforcement.
2. Unscrew the rear mounting nut and unscrew the bolt securing the spoiler to the right edge of the trunk lid.
3. Similarly, unscrew the bolt and unscrew the nut securing the spoiler to the left edge of the trunk lid.
4. Unscrew the two nuts of the central spoiler mount.
(The information is published on the website: vazbook.ru)
5. Lift the spoiler, disconnect the wiring harness from the additional brake light and remove the spoiler.
Note: There are rubber gaskets under the spoiler mounting nuts and bolts. If the rubber loses its elasticity and shows signs of aging, replace the gaskets.
6. Install the spoiler in the reverse order of removal.