The service brake system regulates the speed of the vehicle and stops it with the necessary efficiency. The spare is used to stop the car with the necessary efficiency in the event of failure of the working brake system.
Parking is used to keep the car motionless relative to the road. It is mainly used to hold a standing car, but it can also be used as an emergency in case of failure of the working brake system.
The car uses a working brake system with hydraulic drive and diagonal separation of circuits, which significantly increases the safety of driving a car. If one of the circuits fails, the second circuit is used as a spare brake system, which ensures that the car stops with sufficient efficiency.
The brake system consists of a master cylinder, a vacuum brake booster, disc brakes on the front wheels and drum or disc brakes on the rear wheels.
The vacuum brake booster reduces the force of the brake pedal, thereby facilitating driving.
The rear brake pressure regulator is located in the hydraulic actuator for each rear brake. On most models, the pressure regulators are located separately, but on some models with rear brake drums, the pressure regulators are integrated with the rear slave cylinders.
On vehicles with diesel engines, a separate vacuum pump is used to create a vacuum that ensures the operation of the vacuum brake booster, which is installed at the end of the cylinder head and is driven directly from the camshaft.
When driving on wet roads, it is recommended to depress the brake pedal from time to time to remove harmful inclusions from the brake discs. Due to centrifugal force, water is discharged from the brake discs during movement, but a thin film of fats, silicones, rubber residues, grease and dirt remains on them, which reduce braking efficiency.
After installing new brake pads, they should run in. On the first 200–300 km of run, it is not recommended to make maximum braking without the need.
Corroded brake discs cause a vibration effect during braking, which does not disappear during prolonged braking. In this case, the brake discs must be replaced.