Car brake system Renault Espace 3

Brake system — general information
The car is equipped with a hydraulically driven service brake system with diagonally separated circuits, which significantly increases the safety of driving the car, as well as a vacuum brake booster, which reduces the...

Brake system — technical data
Front brakes The front brakes use ventilated discs and single-cylinder floating calipers. Brand - Girling Cylinder diameter, mm: cars with gasoline engines - 54 cars with diesel engines - 60 Brake disc diameter, mm —...

Parts subject to mandatory replacement
The following parts may not be reused: lock washer and axial ball joint mounting nut: balance weight holder; hub bearing; corrugated protective cover with drive shaft bearing; self-locking nuts for fastening the brake...

Brake fluid
Replacement frequency Design of brakes, especially disc brakes (hollow pistons that emit little heat, a small volume of brake fluid inside the cylinder, floating brake calipers that make it possible to do without a...

Replacing the front brake pads
Fig. 12.1. Front brake caliper: A - cars with gasoline engines; B - cars with diesel engines; 1 - brake disc; 2 - caliper holder; 3 - protective cover; 4 - guide pin; 8 - 5 - brake pads; 6 - support;7 - bleed nipple;8 -...

Floating calipers for front brake mechanisms
Fig. 12.6. Removing the floating bracket of the front disc brake caliper: 1 - brake pad wear sensor connector; 2 - brake hose; 3 - guide pin mounting bolt; 4 - caliper holder mounting bolt; 5 - support; 6 - caliper...

Repair of the front brake caliper
Fig. 12.7. Repair of the front brake caliper: A - using compressed air to push the piston out of the caliper cylinder; B - removing the piston seal ring from the caliper cylinder Remove the front brake caliper. Clean...

Front brake discs
Removal Remove the brake pads. When removing the caliper, do not disconnect the brake hose from it. Remove two bolts ( 4, Fig. 12.6 ) fastening the brake mechanism to the steering knuckle. Remove the two Torx T30 bolts...

Brake drums
Caution. The brake drums must be of the same internal diameter and must be bored at the same time. Never exceed the maximum diameter indicated on the drum. New brake drums are coated with a protective layer that must be...

Rear drum brake slave cylinder
Note Be sure to replace the wheel cylinders in pairs, even if only one brake cylinder has failed. If there are brake fluid leaks from the working brake cylinder, it is recommended to replace it with a new one rather...

Replacing rear drum brake pads
Note: Always replace all pads on one axle of the vehicle, even if only one pad is worn. If brake pads are to be reinstalled, they must be marked before removal. Removal Loosen the parking brake cable tension near the...

Replacing rear disc brake pads
Note: Always replace all pads on one axle of the vehicle, even if only one pad is worn. Removal Raise the rear of the car, support it on jack stands and remove the wheel. Remove the pin (1. Fig. 12.13) brake shoe...

Floating rear brake caliper brackets
Removal Raise the rear of the car, support it on jack stands and remove the wheel. To prevent brake fluid from leaking out, use a special device to lock the brake pedal in the depressed position. Loosen the brake hose...

Rear brake discs
Note: If a brake disc needs to be replaced, both must be replaced to ensure uniform braking. When replacing the brake discs, the brake pads must also be replaced. Brake discs cannot be reground. Removal Remove the brake...

Master brake cylinder
Fig. 12.17. Master brake cylinder: A - cars with gasoline engines;B - cars with diesel engines;1 - pedal; 2 - rings; 3 - pedal bracket; 4 - Brake booster bracket; 5 - gasket; 6 - brake booster; 7 - master brake...

Vacuum brake booster
Removal Disconnect the wires from the battery terminals and remove the battery from the vehicle. Remove the brake master cylinder from the brake booster and use a plastic clamp to secure the reservoir to the brake...

Brake booster air filter
To replace the air filter, it is not necessary to remove the brake booster. Remove the protective cover. Use a metal hook to remove the air filter (F, figure 12. 21) from the brake booster Cut the new air filter (A) and...

Bleeding the brake system
The vehicles are equipped with a service brake system with diagonally split circuits Bleeding can be done under pressure using a bleeding tool or by pressing the brake pedal. When bleeding the brake system, the MS 815...

Parking brake lever
In the car's interior Loosen the parking brake console mounting bolt. Fully lower the parking brake lever. Disconnect the parking brake indicator lamp connector and remove the wiring. Under the car Mark the adjustment...

Adjusting the parking brake
Fig. 12.23. Parking brake: 1 - lever; 2 - main cable;3 - clamp; 4 - right rear cable; 5 - left rear cable Incorrect adjustment of the parking brake, where the cable is too tight, prevents the automatic brake pad wear...

Brake hoses and tubes
The vehicles use brake hoses without copper sealing rings. Sealing is provided by a conical shoulder (U, Fig. 12.26) hose tip. Brake hoses provide movable connections between the moving and fixed parts of the vehicle....

Checking the pressure regulator
Checking and adjusting the pressure regulator must be carried out on a loaded vehicle with a full fuel tank and the driver in his seat. The hydraulically actuated service brake system with diagonally split "X" circuits...

Anti-lock braking system BOSCH
Fig. 12.29. Elements of the braking system with ABS: 1 - wheel speed sensor; 2 - toothed rotor; 3 - wiring harness; 4 - control unit; 5 - bracket; 6 - hydraulic tubes; 7 - master brake cylinder; 8 - "ground" connection...

Front Wheel Speed Sensor
Caution: Avoid dropping or hitting the sensor head. Removal Remove the wheel. Disconnect the electrical connector from the sensor. Remove the sensor mounting bolt. Remove the sensor. Fig. 12.31. Location of the front...

Rear Wheel Speed Sensor
Removal Remove the hub/brake drum. Disconnect the brake pipe from the wheel cylinder Loosen the lower brake shield mounting nut and mark its position Remove the 6 bolts securing the rear wheel hub journal. Disconnect...

ABS hydraulic unit with control unit
The control unit and hydraulic unit form a non-separable unit, therefore if any of them fails, the entire unit must be replaced. Removal Fig. 12.33. Removing the hydraulic unit: 1 - ABS control unit electrical...

Bleeding the brake system with ABS
To bleed air from the brake system with ABS, follow these steps: right rear wheel; left rear wheel; right front wheel; left front wheel. Do not operate the anti-lock braking system unless it has been bled. If the...

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