Brake system of the car Renault Fluence 1

General information about the braking system
General information The car is equipped with two diagonally located brake circuits. One circuit uses the front right and rear left wheels, the second - the front left and rear right wheels. When only one of the circuits...

Brake system components
Vacuum brake booster The vacuum brake booster reduces the force on the brake pedal, making it easier to drive. The vacuum amplifier uses a diaphragm, which creates a vacuum on both sides during normal operation. When...

Precautions when working with the brake system
When working on the brake system, do not press the brake pedal. If damage to any part is detected during work on the brake system, the malfunction must be corrected before the vehicle is put into operation. Brake fluid...

Technical characteristics of the brake system
* Brake discs cannot be ground. If they are heavily worn or have deep scratches, they must be replaced.

Tightening torques for brake system components
Front brake mechanisms Rear brakes Hydraulic brake drive

Bleeding air from the hydraulic drive of the service brake system
Bleeding the brakes Bleeding the hydraulic drive of the service brake system is necessary to remove air, which significantly reduces the efficiency of braking. Air can get into the hydraulic drive due to...

Possible malfunctions, their causes and methods of elimination

Bleeding the pressure control circuit
This operation is performed after removing or replacing one of the following elements: master brake cylinder; hydraulic unit; brake fluid; brake hydraulic fluid reservoir. Place the car on a lift. Connect: device for...

Automatic parking brake (optional)
The automatic parking brake system includes: control unit; lever; electric motors. Note: The automatic parking brake motor is not supplied in the repair kit. If the motor is faulty, replace the motor assembly with the...

Checking the parking brake cable
Place the car on a lift. Check the position of the power parking brake cable. If the power parking brake cable is secured, install a strap clamp. If the power parking brake cable is not secured, check the condition of...

Replacing the parking brake cable (vehicles without automatic parking brake)
Place the car on a lift. Remove the center console carpet (1). Loosen the mounting screws (1) of the center console and remove it. Loosen the adjusting nut (1), disconnect the parking brake drive cables (2) in the drive...

Replacing the automatic parking brake ECU
Place the vehicle on a level, horizontal surface. Engage 1st gear. Place the block behind the rear wheel. Release the automatic parking brake using the lever. Perform the following operations using the "CLIP" diagnostic...

Adjusting the parking brake lever
Remove the center console. Gradually tighten the drive cables by turning the adjusting nut (1) of the parking brake drive lever until the tip touches the lever without moving it. Adjust the setting so that the release...

Replacing the brake light switch
Remove the lower instrument panel trim. Disconnect the brake light switch connector (1). Turn the brake light switch (2) one eighth of a turn counterclockwise. Remove the brake light switch. Disconnect the brake light...

Replacing the front brake pads
Place the car on a lift. Unlock the steering wheel. Remove the front wheels. Remove the spring (1) from the front of the caliper and the brake hose (2) from the shock absorber strut. Remove the two caps from the guide...

Front brake caliper
Note: Brake calipers are supplied in a repair kit with a cylinder filled with brake fluid. When replacing brake pads or a brake disc, be sure to replace them on both sides of the vehicle. Place the vehicle on a lift....

Front brake shoe guide
Place the car on a lift. Remove the front wheels. Loosen the mounting bolts (1) of the guide pins (2). Hang the caliper on the suspension spring. Remove the brake pads. Unscrew the two bolts securing the brake shoe...

Front brake disc
Note: Brake discs cannot be ground. If they are significantly worn or have deep scratches, they must be replaced. When replacing brake discs, also replace the brake pads. Place the car on a lift. Unlock the steering...

Front brake hose
Caution: Take measures to collect brake fluid to prevent damage to mechanical parts and body parts located near the brake system components. Install a pressure device on the brake pedal to reduce the amount of brake...

Replacing rear brake pads
Check the thickness of the pads. To do this, lift the car, remove the wheel and look through the inspection hole in the cylinder body. Minimum thickness of brake pads: 1 mm. Wear limit: 2.0 mm. Place the car on a lift....

Rear brake caliper
Note: Brake calipers are supplied in a repair kit with a cylinder filled with brake fluid. When replacing brake pads or a brake disc, be sure to replace the pads or disc on the other side of the vehicle. The procedure...

Rear brake shoe guide
Place the car on a lift. Release the parking brake. Remove the rear wheel. Release the parking brake cable. Mark the cable route for subsequent installation. Loosen the guide pin mounting bolts. Remove the caliper and...

Rear brake disc
Note: Brake discs cannot be ground. If they are significantly worn or have deep scratches, they must be replaced. When replacing brake discs, also replace the brake pads. Place the car on a lift. Remove the wheels....

Rigid brake line
Place the vehicle on a lift. Install a pressure device on the brake pedal to reduce the amount of brake fluid leaking out. Raise the car. Left rear brake rigid line Remove the rigid pipe (1) in the area of the rear...

Rigid Brake Line Repair
Note: This method is used for copper pipes with a diameter of 4.7 mm. This method is not applicable: for hybrid pipelines (rigid tube + hose); for pipelines with diameters of 6 mm and 8 mm. Using a pipe cutter, cut the...

Brake pedal
Turn off the ignition. Disconnect the brake light switch. Remove the lower instrument panel trim. Remove: brake pedal buffer mounting bolt (1); brake pedal buffer (2). Remove the rubber bushing (3) from the double stop...

Master brake cylinder
Place the car on a lift. Remove: battery; shelf for battery; air filter housing. Remove the brake fluid from the reservoir with a syringe. Place a container underneath to catch any remaining brake fluid in the master...

Vacuum brake booster
The brake booster, located on the firewall, operates using the vacuum in the intake manifold and atmospheric pressure. After completing each operation that involved removing any of the brake system components, perform a...

Brake booster — removal
Remove the decorative covers. Disconnect the wires from the battery terminals, starting with the negative terminal. Remove the battery. Remove the air resonator. Remove the battery tray. Remove the injection system ECU....

Checking the operation of the brake booster check valve
Perform the check on the check valve installed in the vacuum hose. Remove the brake booster vacuum hose. Note: The check valve is installed with tension in the vacuum hose according to the installation marks. Check the...

Removal the brake booster check valve
Remove the upper engine covers. Loosen the air duct clamps and remove the air duct. Disconnect the vacuum hose (1) from the brake booster. Pull the check valve out by rotating it to remove it from the rubber sealing...

Anti-lock Braking System (ABS) — General Information
The car is equipped with ABS BOSCH 8.0. Depending on the vehicle's equipment level, the BOSCH 8.0 system includes only ABS brakes or ABS combined with the electronic stability control (ESC). Note: After performing any...

Removal and installation of the hydraulic unit — removal
Place the car on a lift. Disconnect the battery. Place the device on the brake pedal to measure the amount of brake fluid flowing out. Drain the refrigerant from the refrigeration circuit. Remove the upper engine...

Removal and installation of the hydraulic unit — installation
Installation is carried out in the reverse order of removal. Caution: Point the tip of the hydraulic unit ground wire downwards to ensure a tight seal on the hydraulic unit ECU connector. Install the air conditioner...

Electric pump unit
Decoding the symbols of the basic diagram of the electric pump Schematic diagram of an electric pump Designation and type of electric pump circuit Note: Two types of electric pumps can be installed, respectively for ABS...

ABS ECU — replacement
Place the car on a lift. Remove the hydraulic unit assembly. Unscrew the mounting bolts (1) of the ECU on the pressure control unit and remove the ECU (2). Do not clean the pressure control unit. Be sure to replace the...

Front wheel speed sensor
Remove the front wheel and front fender liner. Disconnect the wheel speed sensor wiring connector (1). Release the wheel speed sensor wire from the holder in area (2). Remove the mounting bolt (3) and the wheel speed...

Rear wheel speed sensor
Remove the rear wheel. Disconnect the wheel speed sensor (1) from its holder. Release the wheel speed sensor wires from the holder in area (2). Disconnect the wheel speed sensor wiring connector (3) and remove the...

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