In the passenger compartment, use a screwdriver to pry up and remove the spring retainer from the pin that connects the pusher to the brake pedal, and...
...we remove the pin.
Using a 13 mm socket head, unscrew the four nuts securing the amplifier to the engine shield.
In the engine compartment, remove the main brake cylinder from the booster (see Removal and repairing the master brake cylinder).
Using a screwdriver, carefully pry the vacuum hose fitting out of the amplifier body.
We remove the amplifier from the car.
We install the new amplifier in the reverse order of removal.
Before installation, check the amount of the rod head protrusion (1.05–1.25 mm) relative to the plane of the booster body. This value corresponds to a free travel of the brake pedal of 3–5 mm. If necessary...
... we rotate the head of the rod with a 7 mm spanner, achieving the required parameters. We hold the rod with pliers.