Note: Before concluding that there is a problem with the braking system, make sure that the tires are in good condition and inflated to the correct pressure, that the front wheel alignment is not out of alignment, and that the vehicle is not loaded unevenly.
Increased brake pedal travel
1. The working circuit of the brake path is damaged - check the system for leaks.
Brake pedal springs and falls
1. Air got into the brake path, bleed the system.
2. The liquid level in the GTZ tank has dropped, - make the appropriate adjustment, pump the system.
3. The formation of steam bubbles. It appears mainly when the brakes are heavily loaded. Change the brake fluid, remove air from the system.
Decreased braking effect, pedal fails
1. The tightness of the hydraulic path is broken.
2. Cuffs in the main or working brake cylinders are damaged.
3. Damaged rubber gasket. Repair the caliper.
Poor braking despite high pedal pressure
1. Oily brake pads.
2. Wrong or hardened pads installed.
3. Faulty brake booster.
4. Worn brake pads.
Vehicle pulls to one side when braking
1. Tire inflation pressure is not correct.
2. The treads are unevenly worn.
3. Oily brake pads.
4. Different brake pads are installed on the same axle.
5. Excessively worn brake pads.
6. Contaminated caliper shafts.
7. Calipers are damaged by corrosion, replace. 8 Pads worn unevenly.
Spontaneous braking, heating of the brake linings while driving
1. The compensation hole in the main brake cylinder is clogged (GTZ).
2. There is not enough clearance between the drive rod and the GTZ piston.
The brakes are shaking
1. Wrong pads installed.
2. The brake disc is corroded in places.
3. Excessive brake disc runout.
Brake pads do not move away from the brake disc, the wheel is difficult to turn by hand
1. Corrosion in the brake caliper cylinders. Repair or replace the caliper.
2. For the rear wheels - the parking brake drive may be incorrectly adjusted.
Uneven pad wear
1. Wrong pads installed. Replace pads.
2. Calipers are damaged by corrosion, replace them.
3. The piston stroke is difficult.
4. The tightness of the path of the brake system is broken.
Wedge-shaped brake pad wear
1. The brake disc does not rotate parallel to the caliper.
2. Calipers are damaged by corrosion, replace them.
3. The piston is out of order.
Screeching brakes
1. Often the cause is atmospheric influence (air humidity). If a creak appears after a long stay in high humidity and then disappears, nothing needs to be done.
2. Wrong pads installed.
3. The brake disc does not rotate parallel to the caliper.
4. The caliper shaft is dirty.
5. The springs for fastening the pads are bent.
6. Compression springs stretched.
Pulsation of the brake pedal
1. A sign of normal operation of ABS.
2. Excessive brake disc runout.
3. The brake disc does not rotate parallel to the caliper.
The ABS warning light comes on while driving
1. Insufficient supply voltage (below 10 V). Check voltage. Check if the generator control lamp goes out after starting the engine.
2. There is a malfunction of the ABS, check the condition and security of the terminal connection of the return pump ground (in hydromodulator).
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