Brake system of the car Renault Logan 2

Brake system — general information
Brake system components: 1. Front disc brakes. 2. Rear drum brakes. 3. Vacuum brake booster with master brake cylinder. 4. Hydro-electronic fjr-jr ABS control. 5. Brake force compensator. Brake drive: 5. Master brake...

Front disc brake mechanism
Note: : replace the part with a new one after each removal. : a special tool/device must be used. : apply a special compound. Front brake mechanism: 1. Front steering knuckle assembly. 2. Wheel speed sensor. 3. Front...

Rear drum brake mechanism
Rear brake mechanism: 1. Brake drum. 2. Retainer. 3. Shoe pressure spring. 4. Secondary brake shoe. 5. Strut spring. 6. Lower return spring. 7. Automatic slack adjuster. 8. Brake shoe return spring. 9. Upper return...

Parking brake
Note: : Replace the part with a new one after each removal. 1. Parking brake lever. 2. Parking brake lever mounting plate. 3. Parking brake secondary drive brake balancer. 4. Balancer clamp. 5. Parking brake drive...

Electronic braking systems (ABS/ESP)
1. Hydroelectronic control unit. 2. Steering wheel angle sensor. 3. Fuse gel in the relay and fuse box of the instrument panel. 4. ABS indicator on the instrument cluster. 5. Diagnostic connector. 6. Brake disc. 7....

Brake system specification
Front brake mechanisms Note: *: Brake discs cannot be reground. If excessive wear is detected, the brake discs must be replaced with new ones. Rear brakes Models B52 and L52 Piston diameter 17.5 mm Inner diameter of...

Precautions during repair
When performing any work related to lifting a vehicle on a lift, observe the relevant safety regulations. The brake system drive must be fully functional, both hydraulically and electronically. If improperly handled,...

Bleeding the brake system
Caution: To avoid any residual air in the brake system, release the parking brake before starting the bleeding procedure. The brake system bleeding procedure must be performed after removing or replacing the following...

Removal and installation the brake pedal
Removal the brake pedal 1. Remove the lower dashboard buffer element (if equipped). 2. Disconnect the connector from the brake pedal switch. 3. Remove the brake pedal switch by turning it a quarter turn...

Removal and installation the master brake cylinder
Attention: Be sure to replace the brake master cylinder with a new one if it has been subjected to impacts or falls (risk of malfunction). Prepare suitable containers to collect the fluid and take measures to protect...

Removal and installation the brake booster
Caution: To avoid loss of brake effectiveness, do not kink the brake booster vacuum line. Prepare suitable containers to collect the fluid and take measures to protect surrounding components from contact with brake...

Checking the brake force compensator
Note: Verification principle: The brake pressure is read from the diagonal contour, after which the values for the front and rear wheels are compared. Both diagonal contours must be checked (front right-rear left and...

Adjusting the brake force compensator
1. Place the car on a level surface (the wheels must be on the ground). 2. Loosen the adjusting screw (1). 3. Move the sleeve (2) until it contacts the brake force compensator lever (3). 4. Tighten the adjusting screw....

Removal and installation front brake hoses
Removal the front brake hoses 1. Place the vehicle on a two-post lift. 2. Set the front wheels of the car to the straight-ahead position. 3. Install a spacer on the brake pedal to limit the leakage of brake fluid. 4....

Removal and installation brake pipes from the rear axle beam
Caution: Prepare suitable containers to collect the fluid and take measures to protect surrounding components from contact with brake fluid. Removal brake pipes 1. Place the vehicle on a two-post lift. 2. Install a...

Repair of brake pipes
Note: The following procedure applies to 4.7mm diameter copper pipes. The procedure does not apply to hybrid lines (pipeline + hose) and pipelines with a diameter of 6 mm and 8 mm. The tightening torques given in this...

Replacing the front brake pads
Attention: To avoid damage to the brake hose: do not stretch the hose; do not twist the hose; make sure the hose does not touch surrounding components. Removal the front brake pads 1. Place the vehicle on a two-post...

Removal and installation the front brake caliper
Attention: To avoid damage to the brake hose: do not stretch the hose; do not twist the hose; make sure the hose does not touch surrounding components. Prepare suitable containers to collect the fluid and take measures...

Disassembling and assembling the brake caliper
Caution: Prepare suitable containers to collect the fluid and take measures to protect surrounding components from contact with brake fluid. Disassembling the brake caliper 1. Place the vehicle on a two-post lift. 2....

Removal and installation the brake caliper bracket
Attention: To avoid damage to the brake hose: do not stretch the hose; do not twist the hose; make sure the hose does not touch surrounding components. Prepare suitable containers to collect the fluid and take measures...

Removal and installation the brake disc
Note: Brake discs cannot be reground. If excessive wear is observed, the brake discs must be replaced with new ones. Removal the brake disc 1. Place the vehicle on a two-post lift. 2. Set the front wheels of the vehicle...

Checking the brake disc
1. Place the vehicle on a two-post lift. 2. Remove the corresponding front wheel from the vehicle. Note: It is best to use a micrometer to check the thickness of the brake disc. 3. Using a micrometer (1), measure the...

Replacing rear brake pads
Note: Replace brake pads at a time with one set for wheels of one axle. Do not combine brake pads of different manufacturers or of different quality. Removal the rear brake pads 1. Place the vehicle on a two-post lift....

Removal and installation the rear wheel cylinder
Caution: Prepare suitable containers to collect the fluid and take measures to protect surrounding components from contact with brake fluid. Removal the rear wheel cylinder 1. Place the vehicle on a two-post lift. 2....

Checking the brake drum
1. Place the vehicle on a two-post lift. 2. Remove the corresponding rear wheel from the vehicle. 3. Remove the brake drum. Note: A suitable caliper must be used to check the inside diameter of the brake drum. 4. Place...

Brake system — parking brake
Removal and installation parking brake cables Removal the parking brake cables 1. Place the vehicle on a two-post lift. 2. Remove the center console. 3. Remove the rear wheels from the vehicle. 4. Remove the rear brake...

Removal and installation of the hydroelectronic control unit
Caution: Prepare suitable containers to collect the fluid and take measures to protect surrounding components from contact with brake fluid. Removal the hydraulic electronic control unit 1. Place the vehicle on a...

Removal and installation the front wheel sensor
Removal the front wheel sensor 1. Place the vehicle on a two-post lift. 2. Remove the front wheel from the vehicle. 3. Remove the front fender liner. 4. Disconnect the connector (1) of the front wheel speed sensor. 5....

Removal and installation the rear wheel sensor
Removal the rear wheel sensor 1. Place the vehicle on a two-post lift. 2. Remove the rear wheel from the vehicle. 3. Remove the rear fender liner. 4. Disconnect the connector (1) of the rear wheel speed sensor. 5....

Special tools and devices
Name of tools and devices Catalogue number Front Brake Caliper Piston Presser Tool Fre. 1842 or Fre. 1190-01 Hydraulic Brake System Test Kit Fre. 1085

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