logo

Subaru B9 Tribeca Brake Master Cylinder Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(38)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

(38)

Brake Master Cylinder Replacement Service

How much does a Brake Master Cylinder Replacement cost?

On average, the cost for a Subaru B9 Tribeca Brake Master Cylinder Replacement is $372 with $232 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Subaru B9 TribecaH6-3.0LService typeBrake Master Cylinder ReplacementEstimate$618.22Shop/Dealer Price$737.63 - $1087.74
2006 Subaru B9 TribecaH6-3.0LService typeBrake Master Cylinder ReplacementEstimate$609.21Shop/Dealer Price$726.85 - $1075.64
Show example Subaru B9 Tribeca Brake Master Cylinder Replacement prices

What is the brake master cylinder and how does it work?

The brake master cylinder has a piston that pressurizes fluid in the brake lines to each wheel cylinder as you apply force to the brake pedal. That pressure moves the pistons that are in the wheel cylinders. As the pistons in those wheel cylinders move, they force the brake pads or shoes tightly against the rotors or drums allowing the car to stop quickly.

The size of the pistons in the master cylinder and in the wheel cylinders are carefully selected when designing a car. This allows drivers to apply moderate pressure on the brake pedal when stopping, but creates tremendous pressure applied at the wheel cylinders. A car can then stop quickly even at high speeds. Depending on how much force is applied to the brake pedal, the pressure in a car’s brake lines will typically be in the range of 800 PSI to 2,000 PSI.

Master Cylinder

When to replace the master cylinder?

  • External fluid leaks. There should be no fluid visible on the external surfaces of any portion of the master cylinder or the plastic fluid reservoir.
  • Low, slowly falling, or spongy brake pedal. Faulty internal seals on the piston can cause internal leaks and also seepage of brake fluid into the power assist brake booster. Internal leaks will typically be accompanied by a low pedal, a spongy brake pedal, or a pedal that slowly sinks as you maintain pressure. In all cases, you will experience reduced braking abilities.
  • Discolored brake fluid. No brake fluids, other than those specified for the year, make, and model, are fully compatible with a car’s internal rubber seals in the master cylinder. Discoloration of brake fluid can also occur due to moisture and particulate contaminants in the fluid.
  • Warning lights on the dash. If the brake system warning light illuminates, there are several potential causes but failure of the master cylinder is in the list of causes that would have to be investigated.

How do mechanics replace the brake master cylinder?

  • On vehicles with power brakes, the master cylinder is bolted to the metal housing of the power brake booster. There is usually an electrical plug connecting to a brake fluid level sensor on the master cylinder reservoir and that plug must be disconnected.
  • Once all steel brake lines are disconnected from the master cylinder, the master cylinder is unbolted from the brake booster and removed from the vehicle.
  • The new master cylinder must be bench-bled to expel air from internal passages that contain the piston. Then the new master cylinder is bolted to the brake booster and the brake lines are reattached. The electrical plug for the fluid level sensor is reconnected.
  • Whenever a new master cylinder is installed, brakes lines to wheel positions must be bled to remove air, old fluid and contaminants. If your vehicle is equipped with anti-lock brakes, the mechanic may use a bidirectional scan tool during brake bleeding to actuate the ABS pump, thus ensuring that all air is removed from the complex valving in the ABS system.
  • All brake line connections that were removed during the master cylinder replacement are inspected for any leakage and the vehicle is road tested to ensure normal operation of the brakes.

Is it safe to drive with a master cylinder problem?

No, any fault in the master cylinder, which is part of the braking system creates a safety risk. A fully operational brake system is essential to quickly stopping your car. Driving a vehicle isn’t safe, if the master cylinder is leaking or has other faults, as braking distances might be longer than normal. The braking system on a vehicle is among the most important safety systems and must be fully functional to safely drive your vehicle.

When replacing the master cylinder keep in mind:

  • The master cylinder is only one component of many in a vehicle’s braking system. During replacement of the master cylinder, all vehicle braking system components should be inspected to ensure maximum braking power is available.
  • The amount of friction material remaining on the brake pads and brake shoes should be verified.
  • Brake lines and flexible rubber hoses at each wheel position should be inspected for corrosion and deterioration.
  • The power brake booster should be evaluated to ensure that power assist is working properly.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Subaru B9 Tribeca services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT Subaru MECHANICS
800+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Subaru mechanics

Real customer reviews from Subaru owners like you.

Excellent Rating

(38)
Rating Summary
35
2
0
0
1
35
2
0
0
1

Attila

20 years of experience
1104 reviews
Request Attila
Attila
20 years of experience
Request Attila
by Nicolas
Subaru B9 Tribeca H6-3.0L - Loud squealing or squeaking is coming from timing belt - Paterson, New Jersey
excellent person and friendly I liked his good work

Isaac

7 years of experience
57 reviews
Request Isaac
Isaac
7 years of experience
Request Isaac
by Paulo
Subaru B9 Tribeca H6-3.0L - Brake Pads Replacement (Rear) - Chapel Hill, North Carolina
Isaac appeared to show expedience and knowledge in replacing the rear rotors and brake pads. Job was completed to satisfaction. Car brakes well so far (and without any vibrations). Recommend him highly.

Nathan

15 years of experience
26 reviews
Request Nathan
Nathan
15 years of experience
Request Nathan
by james
Subaru B9 Tribeca H6-3.0L - Car Thermostat Replacement - Eugene, Oregon
Completed just as planned. Nice and friendly thank you

Corey

13 years of experience
511 reviews
Request Corey
Corey
13 years of experience
Request Corey
by justin
Subaru B9 Tribeca H6-3.0L - Starter - Charlotte, North Carolina
Corey is your guy! On time, knowledgeable, and a super quick turn around time. Would recommend, very pleased with my experience.

Excellent Rating

(38)
Rating Summary
35
2
0
0
1
35
2
0
0
1
Number of Subaru B9 Tribeca services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT Subaru MECHANICS
800+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

Rules of the Road For Oregon Drivers
The The rules of the road in Oregon are similar to those of other states in the US, but there are some important differences. Read through these rules of the road to ensure that you’re operating your vehicle legally and...
Read more
The Guide to Legal Car Modifications for All States
Vehicle Vehicle modifications (https://www.yourmechanic.com/question/what-tips-should-i-follow-about-accessories-and-modifications) can take many forms, from simple modifications such as light window tinting (https://www.yourmechanic.com/article/how-to-tint-a-car-window-by-jason-unrau) to under-vehicle LED lighting (https://www.yourmechanic.com/article/how-to-install-undercar-led-lighting-by-mia-bevacqua) to the more complex frame and suspension modifications. Laws and regulations for vehicle modifications have been set in...
Read more
How to Get Porsche Dealership Certified
Porsche car dealerships offer automotive technician jobs to mechanics who are Porsche certified through the Porsche Technology Apprentice Program.
Read more

Engine makes a grinding noise when I try to crank it

This sounds like the starter is not engaging (https://www.yourmechanic.com/article/starter-or-car-battery-how-to-diagnose-which-part-is-bad) the flywheel or the flywheel teeth are missing. I would try jumping the battery first to see if this makes a difference. If it does and the engine turns over okay...
Read more

D light blinks and gear stuck onto neutral although its geared to D or R. What is the problem of my honda crv 2003?

Hi there. Unfortunately, without being there to complete a gears are difficult to change inspection (https://www.yourmechanic.com/services/not-able-to-change-gears-inspection); any guesses on what's causing this problem would simple be a guess and not very responsible on our part. It could be something as...
Read more

Hoses connected to throttle body

Any hoses that would connect to a throttle body are either going to be for coolant or vacuum. In order to determine where the hoses go from the throttle body, I would recommend following them with a flashlight and or...
Read more
  1. Home
  2. Estimates
  3. Subaru
  4. B9 Tribeca
  5. Brake Master Cylinder Replacement

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com

Read FAQ
GET A QUOTE