Brake Master Cylinder Replacement at your home or office.

Backed by our 12-month · 12,000-mile guarantee · Only high quality parts


Brake Master Cylinder Replacement Service & Cost

What is a Brake Master Cylinder all about?

The brake master cylinder contains brake fluid and is connected to the brakes through the brake pipes and hoses. When you step on the brake pedal, brake fluid flows from the master cylinder to the braking unit at each wheel, creating enough friction to slow down and/or stop the car. The brake master cylinder has internal and external seals that can wear out over time.

If the external seals have worn out, they will leak brake fluid, reducing the amount of fluid in the car and causing the brakes to malfunction. Worn external seals can also leak the fluid into the brake booster and destroy it. The brake booster is essential for the proper functioning of the brakes, so if brake fluid has leaked into it, replacement is required.

If the internal seals have worn out, the brake fluid will continue to circulate inside, instead of being directed to the brakes. This weakens brake performance. The brake pedal will feel soft. When you apply the brakes, the pedal will go all the way to the floor without significantly slowing down or stopping the car.

After replacing the brake master cylinder, the mechanic should flush the old brake fluid out and replace it with new brake fluid.

Master Cylinder
Master Cylinder

Keep in Mind:

  • A leaking brake master cylinder can sometimes result in a broken brake booster; in this case, both elements will need to be replaced.
  • Brake systems are extremely sensitive to debris, so they need to be cleaned thoroughly before and during the replacement of a master cylinder.
  • The air will need to be bled out of the system before the new master cylinder is installed.

How It's Done:

  • Inspect brake master cylinder for leaks.
  • Inspect brake booster.
  • Remove and replace the brake master cylinder if faulty.
  • Change the brake fluid.
  • Bleed entire brake system of air.
  • Clean brake fluids from all the wheels.
  • Perform brake safety inspection.

Our recommendation:

Your mechanic should check the amount of brake fluid every time the car is serviced. If you feel a change in the way your brake pedal feels (a softer pedal), you should have a mechanic inspect the master cylinder and brake hoses. In most cars, the brake warning light should come on when the amount of brake fluid is lower than the manufacturer’s recommended amount.

What common symptoms indicate you may need to replace the Brake Master Cylinder?

  • Brake warning light is on.
  • Brake fluid leak (clear fluid on the ground or under the brake pedal inside the car.)
  • Soft brake pedal (pedal goes all the way to the floor when pushed).

How important is this service?

All services associated with proper function of your brakes are important. In addition to safety issues, ignoring small repairs can quickly lead to more serious (and more expensive) problems.

How much does Brake Master Cylinder Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Car Labor Cost Parts Cost Average Dealer Price YourMechanic Savings
1995 Buick Century $161.25 $184.12 $319.12 - $371.62 $282 18%
2006 Buick Terraza $139.75 $180.22 $297.22 - $342.72 $264 17%
1999 Dodge Intrepid $107.50 $177.62 $267.62 - $302.62 $239 16%
1995 Volvo 940 $107.50 $279.54 $369.54 - $404.54 $286 26%
2006 Mercedes-Benz CLK55 $139.75 $369.54 $486.54 - $532.04 $389 23%
1995 Oldsmobile Cutlass Ciera $161.25 $184.12 $319.12 - $371.62 $282 18%
2006 Volvo S80 $215.00 $394.81 $574.81 - $644.81 $428 29%
1999 Audi A8 $139.75 $428.54 $545.54 - $591.04 $393 30%
2005 Chevrolet Express 1500 $107.50 $199.72 $289.72 - $324.72 $259 15%
2008 GMC Acadia $139.75 $149.02 $266.02 - $311.52 $235 18%

Need a new Brake Master Cylinder?

Get your Brake Master Cylinder changed by a top-rated mechanic at the convenience of your home or office.

Cities we serve
More cities...
Popular Services
More services...
Popular Cars
More cars ...

Get our mobile app

  • Book appointments with mechanics
  • Get free repair estimates
  • Troubleshoot car problems
  • Review your car maintenance schedule

How can we help?

Our service team is available 7 days a week, from 7 AM to 5 PM PST.

1-800-701-6230 · hi@yourmechanic.com