Removal

BRAKE SYSTEM (OTHER): BRAKE MASTER CYLINDER: REMOVAL; 2013 MY FR-S [03/2012 -]

NOTICE:
Make sure to release the vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly.

1. REMOVE FRONT WHEEL LH

2. DRAIN BRAKE FLUID

NOTICE:
If brake fluid leaks onto any painted surface, wash it off immediately.

3. REMOVE FRONT SUSPENSION UPPER TO COWL BRACE SUB-ASSEMBLY LH

Removal

4. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY

(a) Release the vacuum from the booster by depressing the brake pedal several times.

(b) Disconnect the brake fluid level switch connector.

(c) Using a union nut wrench 12 mm, disconnect the 2 brake tubes from the brake master cylinder sub-assembly.





(d) Remove the 2 nuts and the brake master cylinder sub-assembly from the brake booster assembly.





NOTICE:
* Because of the way the master cylinder sub-assembly is designed, the piston can easily fall out, and so do not hold the master cylinder sub-assembly by the piston or pull the piston out. If the piston has been removed from the master cylinder sub-assembly by accident, there is a danger that the performance of the master cylinder sub-assembly will be degraded, and so it cannot be reused and must be replaced with a new master cylinder sub-assembly.
* The master cylinder requires careful handling. Do not allow the master cylinder to receive any impact, such as from being dropped. Do not reuse a master cylinder that has been dropped.
* Do not strike or pinch the master cylinder piston, and do not cause any damage to the master cylinder piston by any other means.
* When installing the master cylinder to the brake booster or removing the master cylinder from the brake booster, make sure that the master cylinder is kept horizontal or with its tip facing downward (the piston faces upward) to prevent the master cylinder piston from falling out.
* Do not allow any foreign objects to contaminate the master cylinder piston. If a foreign object gets on the piston, remove it by using a piece of cloth, and then apply an even layer of lithium soap base glycol grease around the circumference (sliding part) of the piston.
* Do not use any other type of grease or fluid.
* Be careful not to damage the brake tubes.

5. REMOVE SEAL

(a) Remove the seal.