Brake system of the car Opel Astra G (petrol)

General information
The brakes have a dual-circuit hydraulic drive, each circuit controlling the brakes of the diagonal wheels. Braking of the front wheels is provided by a...

Hydraulic brakes — air removal
1. If the fluid loss is small, air may be removed only from the part of the system that was disassembled. 2. When removing air from the entire system, perform...

Brake tubes and hoses — replacement
1. Before disconnecting any hydraulic line, wrap the neck of the master cylinder reservoir with polyethylene. When removing wheel cylinders, it is recommended...

Front brake pads — replacement
Attention! The pads are changed only as a set per axle. 1. Raise the car, remove the front wheels. 2. On some vehicles, pry up and remove the brake pad wear...

Rear Disc Brake Pads — Removal and Installation
1. Raise the rear of the vehicle. 2. Release the parking brake lever. Loosen the adjusting nut to allow slack in the parking brake cables. 3. Use a screwdriver...

Rear Drum Brake Pads — Replacement
1. Remove the brake drums, clean the pads. 2. Check the thickness of the brake pad friction linings (see photo). 3. If the thickness of the friction lining of...

Brake discs — inspection, removal and installation
Attention! The disks are changed in pairs per axle. 1. Raise the vehicle and remove the wheel. 2. Screw the wheel bolts into the disk through 10 mm long...

Rear Brake Drums — Removal, Inspection and Installation
1. Raise the rear of the car and place it on stands. Remove the wheel. 2. Release the handbrake. 3. Loosen the screws and remove the drum (see photo). If the...

Front Brake Caliper — Removal, Disassembly and Installation
Attention! On 1.4, 1.6 and 1.8 l models, 1.8 l without ABS system, the caliper is non-disassemblable and is replaced as a whole. The disassembly procedure...

Rear Brake Caliper — Removal and Installation
Removal 1. Raise the rear of the car and place it on stands. Remove the wheel. 2. After unscrewing the adjusting nut, release the handbrake cable casing,...

Rear Drum Brake Wheel Cylinder — Removal, Disassembly and Installation
1. Remove the brake drum. 2. To reduce fluid loss, tightly close the tank cap, placing a piece of plastic film underneath it, or clamp the hose with a clamp....

Brake Master Cylinder — Removal, Disassembly and Installation
1. Release the vacuum in the brake booster by pressing the brake pedal several times. On Zafira models, remove the deflector under the windshield. 2. Unscrew...

Brake pedal — removal and installation
1. Disconnect the battery from ground. 2. Remove the instrument panel. 3. Unscrew the bolts securing the pedal bracket to the steering gear crossmember. 4....

Vacuum brake booster — checking, removal and installation
Examination 1. Press the brake pedal several times. While holding the brake pedal, start the engine, the brake pedal should go down. After two minutes, turn...

Vacuum booster check valve — removal and installation
1. Disconnect the hose from the vacuum booster and from the intake manifold. 2. Check the condition of the valve, which should blow freely in one direction...

Parking brake — adjustment
1. Adjustment of the parking brake is necessary after replacing the discs/drums or rear brake pads. 2. Raise the rear of the vehicle. 3. To access the...

Handbrake lever — removal and installation
1. Remove the floor section cover and remove the lever boot. 2. Loosen the cable adjustment nut. 3. Remove the parking brake indicator switch, unscrew the...

Handbrake cables — removal and installation
1. On models with rear drum brakes, there are several sections of cable - the front section connecting the lever to the equalizer bar, 2 main sections...

Brake light switch — removal, installation and adjustment
1. Remove the trim in the niche on the driver's side. 2. Disconnect the heater air duct. 3. Disconnect the wire from the switch, turn the switch and remove it...

Parking Brake Warning Light Switch — Removal and Installation
1. Remove the center floor section. 2. Disconnect the wire from the switch (the switch is mounted on the parking brake lever) Loosen the bolt and remove the...

Anti-lock braking system and TC-system of sensor control of adhesion of front drive wheels with the road surface — general information
The ABS system consists of a control unit, a block of electromagnetic valves, an electric pump for pumping brake fluid, and speed sensors. The control unit...

Anti-lock ABS and TC brake system assemblies and units — removal and installation
Solenoid valve block 1. Remove the battery, battery tray and relay panel. Disconnect the connectors, unscrew the 3 nuts and remove the panel bracket. 2. Remove...

Dosing valve — removal and installation
1. Raise the front of the vehicle. 2. To reduce fluid loss, tightly close the tank cap, placing a piece of plastic film underneath it. 3. Loosen the bolt and...

Features of operation of the brake system
Experienced motorists know that in rainy summer, the car's braking system for some reason becomes more capricious than, for example, in the heat. Trouble can...

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