A failure of the brake system may be indicated by the following signs: drifting on a straight line, there is too much play in the brake pedal, grinding, whistling when braking, an abnormally small or big amount of effort applied to the pedal during braking, pedal vibration during braking, a low level of brake fluid in the reservoir. As part of the repair of the brake system, the following operations can be carried out: replacement of brake fluid, replacement of flexible hoses, brake hoses and pipes, bleeding of brakes, replacement of brake cylinders, repair of ABS, repair or replacement of discs and brake drums, replacement of pads, replacement of a vacuum brake booster and others.