General information about the brake system The vehicles described in this manual are equipped with a hydraulic brake system. Front brakes are disc, rear brakes are disc or drum. All brakes are equipped with...
Safety Brake Pedal — Description The safety brake pedal design minimizes pedal backlash. This provides cushioning for the force of impact on the driver's lower body. In a frontal impact, the movement of...
Vacuum Brake Booster — Description The vacuum brake booster reduces the force on the brake pedal, making it easier to drive. The vacuum amplifier uses a diaphragm, on both sides of which a vacuum is...
Brake Master Cylinder — Description The master brake cylinder is used on dual-circuit brake systems. The front right and rear left brakes are actuated by the primary piston, while the front left and rear...
Pressure Regulator — Description The pressure regulator limits the output pressure to the rear brakes after the pressure reaches the limit value in the master brake cylinder. The adjuster is used when...
Brake Fluid Level Sensor — Description The brake fluid level sensor, located in the brake fluid reservoir, turns on the BRAKE warning light when it detects a low fluid level. As soon as the level returns to...
Anti-lock braking system (ABS) — description Braking is most effective when the grip of the tire on the road surface is maximum. During braking, the tire slides over the surface, and the circumferential speed of...
Dynamic Stability Management — Description The hydraulic control mechanism of the DSC HU/CM system and the control strategy of the system are essentially adopted from the previous model 323, except for the...
DSC Warning Light — Description The DSC warning lamp is installed in the instrument cluster and notifies the driver when DSC is activated (the car is in side slip) or TCS activation (drive wheel slip)...
Integrated stability control sensor The yaw rate sensor and the lateral g-force sensor are combined. Integrated sensor mounted on the left side of the parking brake lever (left hand drive models) or on the...
DSC HU/CM stability control unit A compact and lightweight DSC HU/CM integrated unit with increased reliability is used. The DSC HU/CM calculates the input signals from all sensors and controls the...
Emergency braking control During emergency braking, the DSC HU/CM increases the brake fluid pressure by increasing the pressure in the master cylinder, so more braking force is achieved with less...
Controller Area Network (CAN) Anti-Lock Braking System (ABS/TCS) and DSC HU/CM transmit/receive information via CAN. They transmit information. About the path taken. About wheel speed. from the front...
On-board diagnostics of the brake system Operation of the on-board diagnostic system of the anti-lock braking system (ABS/TCS) or DSC is essentially carried over from the previous 323 (BJ), except for the...
Checking and adjusting elements of the brake system Check the brakes on a dry and level road, at various vehicle speeds with light and hard pressure on the brake pedal, avoiding brake lock and tire slip. Three main...
Brake Hoses — Check Brake hoses should be checked at least twice a year. To prevent sudden failure of the brake system, carefully check the condition of all pipes and connections, paying...
Removal of air from the brake system Note. Air from the hydraulic brake drive must be removed every time the brake system pipes have been disconnected. If the hydraulic line is disconnected from the master...
Vacuum hose check valve (brake booster) Remove clamps and vacuum hose. Pic. 6.14. Check Valve Check Diagram Alternately apply vacuum and pressure to the vacuum hose on the engine side and make sure that air...
Checking the brake pedal height Check that the distance from the floor mat to the center of the top surface of the pedal seat is correct. Pedal Height (control value)
Adjusting the height of the brake pedal Loosen the lock nut B and turn the bolt all the way to the pedal. Loosen lock nut D and turn pin C to adjust the height. Tighten locknut B. Tightening torque: 9.8 - 14.7...
Checking the brake pedal clearance Depress the pedal several times to eliminate the vacuum in the system. Remove the spring pin, make sure the holes in the fork and the pedal line up, and reinstall the...
Adjustment of a backlash of a pedal of a brake Remove spring pin and capped pin with cotter pin. Pic. 6.16. Adjustment of a backlash of a pedal of a brake Loosen lock nut D and turn pin C until the holes in the fork...
Pedal-to-floor clearance check Start the engine and depress the brake pedal with a force of 588 N. Pic. 6.17. Pedal-to-floor clearance check Check that the distance from the floor panel to the center...
Checking the brake light switch Disconnect the negative battery cable. Disconnect the brake light switch connector harness. Pic. 6.18. Brake switch test circuit Check for continuity between the...
Removing and installing the brake pedal Removing For models with automatic transmission - remove the locking mechanism with the brake light switch (right hand drive models only). Pic. 6.19. How to remove brake...
Removal and installation of the main brake cylinder Removing Attention! Avoid spilling brake fluid on painted surfaces. If brake fluid comes into contact with a painted surface, wash it off immediately. Drain the brake...
Liquid Level Sensor Check Disconnect the negative battery cable. Disconnect the sensor connector. Pic. 6.27. Liquid level sensor test circuit Check for continuity between the terminals of the...
Disassembly and assembly of the master cylinder Attention! If the master cylinder body is damaged, replace the master cylinder assembly. When mounting the master cylinder in a vise, clamp only the protrusion of the...
Removal and installation of a forward brake disk Pic. 6.34. Front brake mechanism: 1 - flexible hose; 2 - cover; 3 - guide pin; 4 - support; 5 - M-shaped spring; 6 – block of a brake disk; 7 - guide plate; 8 - support;...
Checking the brake disc and brake components Check for corrosion, wear and damage on the inner walls of the cylinder. Replace cylinder body if necessary. Minor flaws caused by corrosion or foreign particles can be...
Replacing the front brake pads When the cylinder body is open, do not press the brake pedal, otherwise the piston will pop out. Be careful not to damage the piston boot or allow oil to get on the...
Checking the parking brake system Pull the parking brake lever several times. Press the brake pedal several times. Check the parking brake lever travel by pulling the parking brake lever with a force of...