Brake Master Cylinder Reservoirs

Replacement Parts > Brake > Brake Hydraulics

Brake Master Cylinder Reservoirs

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What is a Brake Master Cylinder Reservoir?

A Brake Master Cylinder Reservoir is a component of the brake system of a vehicle. It stores brake fluid and is connected to the master cylinder, which is the part of the system that transmits hydraulic pressure from the brake pedal to the brakes.

What is the purpose of a Brake Master Cylinder Reservoir?

The purpose of a Brake Master Cylinder Reservoir is to store brake fluid and regulate its pressure. The fluid serves as a lubricant for the brake system and ensures the smooth and safe operation of the brakes.

How do I know if my Brake Master Cylinder Reservoir is faulty?

If your Brake Master Cylinder Reservoir is faulty, you may notice the following symptoms:

  1. Unusual noises coming from the brake system while braking.
  2. The brake pedal feeling spongy when pressed.
  3. The brake pedal feeling hard to press.
  4. The brakes feeling slow to respond.


Can a faulty Brake Master Cylinder Reservoir cause damage?

Yes, a faulty Brake Master Cylinder Reservoir can cause damage to other components of the brake system. It can also reduce the brakes' ability to stop the vehicle, resulting in an increased risk of an accident.

How do I replace my Brake Master Cylinder Reservoir?

Replacing your Brake Master Cylinder Reservoir is a relatively simple process. You will need the following tools:

  • Screwdrivers.
  • Wrenches.
  • Pliers.
  • Brake fluid.


Once you have the necessary tools, follow these steps:
  1. Disconnect the negative cable from the car battery.
  2. Remove the old reservoir from its mounting bracket and disconnect the brake line.
  3. Install the new reservoir and reconnect the brake line.
  4. Refill the reservoir with fresh brake fluid.
  5. Reconnect the negative cable to the car battery.


How often should I inspect my Brake Master Cylinder Reservoir?

It is recommended that you inspect your Brake Master Cylinder Reservoir at least once a year. During the inspection, check for any signs of leakage, cracks, or other damage. Additionally, check the fluid level to ensure it is at the proper level and top it off as necessary.