Brake Bleeding: Service and Repair

2009 Mazda 6 V6-3.7LSECTION Service and Repair



AIR BLEEDING

CAUTION:
- Brake fluid will damage painted surfaces. Be careful not to spill any on painted surfaces. If it is spilled, wipe it off immediately.

NOTE:
- Keep the fluid level in the reserve tank at 3/4 full or more during the air bleeding.
- Begin air bleeding with the brake caliper that is furthest from the master cylinder.

Brake fluid type
- SAE J1703, FMVSS 116 DOT-3

1. Remove the bleeder cap and attach a vinyl tube to the bleeder screw.

2. Place the other end of the vinyl tube in a clear, fluid-filled container.

3. One person should depress the brake pedal a few times, and then hold it in the depressed position.

4. A second person should loosen the bleeder screw, drain out the fluid and close the screw using a commercially available flare nut wrench.






Tightening torque
- 6.9-9.8 Nm {71-99 kgf-cm, 62-86 in-lbf}

5. Repeat steps 3 and 4 until no air bubbles are seen.

6. Bleed air from each component by following the procedure above.

7. After air bleeding, check the following:

- Brake operation

- Fluid leakage

- Fluid level

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.