Brake system of the car Opel Astra J (petrol)

Features of the brake system
The Opel Astra J is equipped with two independent brake systems: service and parking. The first, equipped with a hydraulic drive, provides braking when the car...

Checking the brake pedal position
Correct position of the brake pedal when free and when pressed all the way (working stroke of the pedal) serves as one of the criteria for checking the...

Checking the tightness of the hydraulic brake system
To prevent sudden failure of the brake system, carefully check the condition of all pipelines. Replace parts with new ones if there is the slightest doubt...

Checking the operation of the brake booster
You will need: pliers, rubber bulb. When the vacuum booster fails, the force on the brake pedal increases significantly, which negatively affects vehicle...

Checking the degree of wear of brake pads and discs
You will need: a wheel wrench, calipers or a ruler. Note: If the vehicle pulls to one side or makes strange noise when braking, check the condition of the...

Checking the parking brake
The parking brake should hold the vehicle on a 25% slope when the lever inside the vehicle is moved 7-9 teeth (clicks) of the ratchet device. Fig. 1. Checking...

Bleeding the hydraulic brake system
The brake hydraulic drive is bled to remove air that has entered it when filling with fluid after its replacement or after repair of hydraulic drive units...

Replacing brake fluid
According to the manufacturer's recommendation, the brake fluid should be replaced after 30 thousand km of mileage or 2 years of operation (whichever comes...

Replacing the brake master cylinder reservoir
You will need: tORX T20 key, thin-blade screwdriver. 1. Disconnect the wire from the negative terminal of the battery. 2. Use a screwdriver to pry up the...

Replacing the master brake cylinder
You will need: tORX T20 key, 24 mm socket head and a special 13 mm key for brake pipes. Note: The nuts that hold the brake pipes are usually very tight. When...

Replacing the brake booster
The vacuum brake booster is a complex, difficult to disassemble structure. Its adjustment and repair require qualified personnel and special equipment. In...

General information about replacing brake hydraulic hoses and tubes
Replace hoses and tubes if they are damaged. In addition, we recommend replacing hoses every 150,000 km or 5 years of vehicle operation as a preventive measure...

Replacing brake hoses
There are four brake hoses used on a car: two (front) for connecting pipelines to the working cylinders of the front brake mechanisms.. ...and two (rear) for...

Replacing brake pipes
The connections of the tubes with all brake system components and hoses, as well as the principles of their replacement, are the same. 1. To replace any tube,...

Removal and installation the brake pedal
The brake pedal is removed for replacement if it squeaks, sticks, or has increased play, or if the return spring is damaged. The brake pedal, together with the...

Replacing the brake pads of the front wheel brake mechanism
Check the condition of the brake pads at every maintenance. Brake pads require replacement when the linings are worn out (minimum permissible thickness of...

Replacing the front wheel brake caliper
The brake mechanism support is removed for replacement or repair, as well as to gain access to other units. The support can only be removed by partially...

Replacing the brake disc of the front wheel brake mechanism
You will need: tORX T30 key, wheel nut key. If there are burrs, deep scratches and other defects on the working surface of the disc that increase pad wear and...

Replacing the brake pads of the rear wheel brake mechanism
Check the condition of the brake pads at every maintenance. Brake pads require replacement when the linings are worn out (the minimum permissible thickness of...

Replacing the rear wheel brake caliper
The brake mechanism support is removed for replacement or repair, as well as to gain access to other units. The support can only be removed by partially...

Replacing the brake disc of the rear wheel brake mechanism
You will need: tORX T30 key, wheel nut key. If there are burrs, deep scratches and other defects on the working surface of the disc that increase pad wear and...

Adjusting the parking brake drive
To check the correct adjustment of the parking brake actuator, lift the actuator lever up to the stop until you hear approximately 3 or 4 clicks of the ratchet...

Replacing the rear parking brake cables
Replace the rear parking brake cables if they are excessively stretched (impossibility of adjusting the parking brake), mechanical damage to the cable cores or...

Removal and installation the parking brake lever
Remove the lever assembly for replacement if the toothed sector, pawl or automatic drive adjustment mechanism is worn or damaged. You will need: 10 mm spanner,...

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