Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Brake Line
NOTE:
Bleed air from the rear brake first. If front brake is bled first, rear brake air cannot be bled.
- Fill reservoir with brake fluid.
- Connect a vinyl tube to the brake caliper and place the other end in a half-full container of brake fluid.
- Depress the brake pedal several times, then loosen the bleeder plug with the pedal held down.
- At the point when fluid starts to run out, tighten the bleeder plug to specification. See TORQUE SPECIFICATIONS .
- Release the brake pedal. Repeat steps 3 and 4 until all the air in the fluid has been bled out.
- Repeat procedure to bleed air out of the brake line for each wheel.
- Check the fluid level and add fluid if necessary.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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