Brake system of cars VAZ-2115

All articles about the installation and repair of units and elements of the brake system of VAZ-2115 (Lada Samara 115, sedan) and their modifications.

Design features of the brake system
8.1. Hydraulic brake drive diagram: A - flexible front brake hose; B – flexible rear brake hose; 1 – front wheel brake mechanism; 2 – left front – right rear brake circuit...

Possible malfunctions of the brake system
Possible malfunctions of the brake system and methods for their elimination are given in the table: Cause of malfunction Method of elimination Increased brake pedal travel Brake...

Features of the vacuum booster design
8.2. Vacuum booster : A – vacuum chamber; B – atmospheric chamber; C, D – channels; 1 – rod; 2 – sealing ring of the master cylinder flange; 3 – amplifier body cup; 4 – adjusting...

Checking the operation of the vacuum booster check valve
1. Check the tightness of the connection of the vacuum hose with the fitting on the receiver… 2. …and with a check valve. 3. To check the check valve, loosen the clamp and...

Replacing the vacuum booster
1. Disconnect the wiring harness connector from the brake fluid level sensor. 2. From inside the passenger compartment, remove the retaining clip from the brake pedal pin. 3....

Removal and installation the master brake cylinder
1. Disconnect the wire from the "–" terminal of the battery. 2. Disconnect the wiring harness connector from the brake fluid level sensor installed in the reservoir cap. 3. Loosen...

Repair of the main brake cylinder
Master cylinder with reservoir: Fig. 8.5. Master cylinder with reservoir: A - gap; 1 – master cylinder body; 2 – low pressure sealing ring; 3 – piston drive circuit left front –...

Replacing the pressure regulator
One of the reasons for the car skidding or pulling to the side when braking may be a faulty pressure regulator (popularly called a "sorcerer"). It is recommended to replace a...

Adjusting the pressure regulator drive
Incorrect adjustment of the pressure regulator drive can cause the vehicle to skid or pull to one side when braking, as well as reduce braking efficiency. 1. Place the car on an...

Checking pipelines and connections
To prevent sudden failure of the brake system, carefully check the condition of all pipes and connections, paying attention to the following: 1. Metal pipelines must not have...

Replacing brake hoses
1. Using a wrench to hold the brake hose from turning, unscrew the pipe fitting. Remove the spring clip and pull the hose end out of the bracket on the body. 2. Remove the rubber...

Bleeding the brake system
Bleeding the brake system is necessary to remove air from it, which can get into the system during repairs, replacement of brake fluid, depressurization of the system due to...

Replacing brake fluid
Warnings: Take precautions when working with brake fluid - it is toxic. If brake fluid gets on wires, plastic or painted body parts, it can cause damage. Therefore, always put...

Replacing rear brake pads
The minimum permissible thickness of the friction linings of the brake pads is 1.5 mm. Replace the pads in the following cases: the thickness of the friction linings is less than...

Replacing the front brake pads
The minimum permissible thickness of the friction linings of the brake pads is 1.5 mm. Replace the pads in the following cases: the thickness of the friction linings is less than...

Replacing the brake disc
Minimum permissible disk thickness A=10.8 mm. If the disk thickness is less, it must be replaced. Axial runout of the brake disk surface must not exceed 0.15 mm. If there are any...

Replacing the brake drum
The maximum permissible diameter of the drum working surface is 201.5 mm. Replace the drum if its diameter is greater than or equal to the maximum permissible diameter. There...

Front Brake Cylinder Repair
1. Remove the appropriate wheel. 2. Remove the brake hose seal from the bracket on the strut. 3. Loosen the hose fitting on the brake cylinder. 4. Bend back the tabs of the lock...

Replacing the rear brake cylinder
If during operation there are signs of brake fluid leakage on the brake drum and the inner side of the wheel, replace the slave cylinder. Repairing the working cylinder usually...

Design features of the master brake cylinder
Master cylinder (Fig. 8.5) with a sequential arrangement of pistons. A reservoir 13 is fixed to the body of the main cylinder, in the plug of which a sensor 14 of the emergency...

Replacing the spring of the parking brake lever pawl
If the parking brake lever does not lock in the selected position, first check the pawl spring. If the spring is good, replace the lever. 1. Unscrew the button from the lever 2....

Repair of the parking brake lever
You will need: a screwdriver, a 13 mm wrench, and pliers. 1. Disconnect the wire from the "–" terminal of the battery. 2. From underneath the vehicle, loosen the lock nut and...

Replacing the parking brake cable
Helpful Hint: If the cable is difficult to move in the sheath after being removed from the vehicle, lubricate it; pour transmission or engine oil into the casing until it starts...

Checking and adjusting the parking brake drive
According to the Road Traffic Regulations, the parking brake must hold the vehicle on a 25% slope when the parking brake lever is moved 2-4 clicks. In practice, you can check the...

Design features of the pressure regulator
Pressure regulator regulates the pressure in the hydraulic drive of the rear wheel brake mechanisms depending on the load on the rear axle of the car. It is included in both...

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More articles from other manuals on VAZ cars:
➠ Chassis: Brake system VAZ-2101 (1970-1983)
➠ Chassis: Brake system VAZ-2104 (1984-2012)
➠ Chassis: Brake system VAZ-21214 (1994-2006)
➠ Chassis: Brake system VAZ-2107 (1982-2012)
➠ Chassis: Brake system VAZ-1111 (1988-1996)

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