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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Except Hybrid) >> Removal And Installation >> Brake Master Cylinder >> Removal and Installation >> Removal

Removal and Installation: Removal

CAUTION:
  • Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off immediately and wash with water if it gets on a painted surface.
  • Depress the brake pedal several times to release the vacuum pressure from the brake booster. Then remove the master cylinder assembly.
  • Never depress the brake pedal. Brake fluid may splash while removing the brake tube.
  1. Perform inspection before removal. Refer to Inspection .
  2. Remove the brake master cylinder cover and hood ledge cover LH. Refer to Removal and Installation .
  3. Drain brake fluid. Refer to Draining .
  4. Disconnect the brake fluid level switch harness connector.
  5. Remove the brake tube from between ABS Actuator and Electric Unit (Control Unit) and master cylinder assembly with a flare nut wrench. Refer to Exploded View .
    CAUTION: Never scratch the flare nut and the brake tube.
  6. Remove the master cylinder assembly from brake booster.
    CAUTION:
    • Never depress the brake pedal after the master cylinder assembly is removed.
    • The piston of the master cylinder assembly is exposed. Never damage it when removing the master cylinder.
    • The piston may drop off when pulled out strongly. Never hold the piston. Hold the cylinder body when handling the master cylinder assembly.
  7. Remove the O-ring.