Brake System Bleeding (G2172297)
| 70.25.02 | HYDRAULIC SYSTEM - BLEED | ALL DERIVATIVES | 0.40 |
| 70.25.03 | ABS HYDRAULIC SYSTEM - BLEED | ALL DERIVATIVES | 0.40 |
The following step(s) applies to:
All vehicles
- Raise and support the vehicle on a suitable 2 post lift.
Refer to: LIFTING (G189141)
- Check that the brake fluid lines are secure and that there are no signs of a brake fluid leak. If a brake fluid leak is detected, investigate and rectify the cause of the leak before bleeding the brakes.
Remove the access cover.
Remove the brake fluid reservoir cap.
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WARNING: Do not allow dirt or foreign liquids to enter the reservoir. Use only new brake fluid of the correct specification from airtight containers. Do not mix brands of brake fluid as they may not be compatible.CAUTION:
- The brake fluid reservoir must remain full with new, clean brake fluid at all times during bleeding.
- Brake fluid will damage paint finished surfaces. If spilled, immediately remove the fluid and clean the area with water.
Fill the brake fluid reservoir to the MAX mark.
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CAUTION: Make sure that the operating pressure of the equipment does not exceed 5 bar.
Install the pressure bleed apparatus to the master cylinder reservoir.
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CAUTION: The bleed bottle must remain a minimum of 300 mm above the caliper that is being bled.
Install the bleed tube to the brake caliper bleed screw and immerse the free end of the bleed tube in a bleed bottle equipped with a one way valve.
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CAUTION: The diagnostic sequence must only be run if the anti-lock brake system (ABS) control module has been replaced or is dry.
Connect the Jaguar approved diagnostic tool, select Brake system - Brake bleed and proceed as directed for bleeding the brake system.
The following step(s) applies to:
Left-hand drive vehicles
- Starting at the brake caliper furthest away from the brake master cylinder, loosen the bleed screw by one-half to three-quarters of a turn.
The following step(s) applies to:
Right-hand drive vehicles
Starting at the brake caliper furthest away from the brake master cylinder, loosen the bleed screw by one-half to three-quarters of a turn.
The following step(s) applies to:
All vehicles
- Start and run the engine.
- With the engine running, depress the brake pedal at a rate of 3 seconds to apply, release and then wait for 0.5 second prior to the next apply.
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- Perform the following sequence a minimum of 18 times for the rear calipers.
- With the bleed screw closed, switch the electric park brake (EPB) ON.
- Depress the brake pedal down, open the bleed screw.
- Wait for 2 seconds and switch the EPB OFF.
- Close the bleed screw.
- Release the brake pedal.
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- Perform the following sequence a minimum of 12 times for the front calipers.
- With the bleed screw closed, press the brake pedal down.
- Open the bleed screw for 2 seconds.
- Close the bleed screw.
- Release the brake pedal.
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CAUTION: Make sure the bleed screw cap is installed after bleeding. This will prevent corrosion to the bleed screw.
- With the brake pedal fully depressed, tighten the front bleed screw.
Torque : 15 Nm
- Install the bleed screw dust cap.
- With the brake pedal fully depressed, tighten the front bleed screw.
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CAUTION: Make sure the bleed screw cap is installed after bleeding. This will prevent corrosion to the bleed screw.
- With the brake pedal fully depressed, tighten the rear bleed screw.
Torque : 15 Nm
- Install the bleed screw dust cap.
- With the brake pedal fully depressed, tighten the rear bleed screw.
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WARNING: Braking efficiency may be seriously impaired if an incorrect bleed sequence is used.
Repeat the brake bleeding procedure for each brake caliper, following the above sequence.
- Apply the brakes and check for leaks.
- Remove the bleeding apparatus.
- Fill the brake fluid reservoir to the MAX mark.
- Install the brake fluid reservoir cap.
- Install the access cover.