8.1. Introduction On the car the working brake system with the hydraulic drive and diagonal division of contours is used that considerably increases safety of driving of the car. The brake system consists of the main brake cylinder, the vacuum amplifier of brakes, disk brakes on forward wheels, and drum or disk brakes on back wheels. All models are equipped with the anti-blocking system of brakes consisting of the hydraulic modulator, an electronic control unit, the relay and sensors of speed of rotation of wheels. The system prevents blocking of wheels at sharp braking. On cars with diesel engines the separate vacuum pump which is installed on the end of a head of the block of cylinders is used to creation of the vacuum ensuring functioning of the vacuum amplifier of brakes and put in action directly from the camshaft (model of 1,7 l) or is attached to the generator (model of 2,0 l).