Mazda CX-9 Vacuum Booster Replacement at your home or office.

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Vacuum Booster Replacement Service

How much does a Vacuum Booster Replacement cost?

On average, the cost for a Mazda CX-9 Vacuum Booster Replacement is $482 with $197 for parts and $285 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2011 Mazda CX-9V6-3.7LService typeVacuum Booster ReplacementEstimate$739.17Shop/Dealer Price$867.72 - $1185.88
2010 Mazda CX-9V6-3.7LService typeVacuum Booster ReplacementEstimate$679.17Shop/Dealer Price$807.78 - $1125.97
Show example Mazda CX-9 Vacuum Booster Replacement prices

What is the Vacuum Booster all about?

Today’s braking systems use a number of different components, one of which is called the vacuum booster, or brake booster. It is the main component in the power brake system. The vacuum booster is attached to the brake master cylinder, and sits between the master cylinder and the firewall on the driver’s side, to the rear of the engine compartment. It has a rod that extends into the brake master cylinder to create line pressure, forcing the caliper to squeeze the brake rotors. The vacuum booster ‘boosts’ brake pedal pressure with vacuum to make it easier to press the pedal.

Keep in mind:

  • The vacuum booster is a sealed component and is difficult to inspect.
  • A leaking check valve can produce the same symptoms as a failed vacuum booster.

How it's done:

  • The brake master cylinder is removed for to gain access to vacuum booster
  • The defective vacuum booster is removed from the firewall and brake pedal
  • The new vacuum booster is installed and connected to the brake pedal
  • The brake master cylinder is reinstalled and brakes are bled of air
  • The vehicle is road tested for proper brake operation

Our recommendation:

The vacuum booster does not require any maintenance and is designed to last the lifetime of your vehicle. It is possible, though very rare, for an internal failure to occur. If that is the case, have one of our expert technicians diagnose the vacuum booster.

What common symptoms indicate you may need to replace the Vacuum Booster?

  • Brake pedal is extremely hard to press
  • Stopping distance is increased
  • Brake pedal feel is inconsistent on the same application

How important is this service?

While a failed vacuum booster will not render the brakes completely dysfunctional, it will make the brakes much harder to apply. Stopping distance is increased, which poses a safety risk in short braking situations. Have a faulty vacuum booster replaced immediately.

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Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

Excellent Rating

(203)

Rating Summary
186
11
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186
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Mark

8 years of experience
38 reviews
Mark
8 years of experience
Mazda CX-9 V6-3.7L - Battery - Altamonte Springs, Florida
on time and knowledgeable

Scott

34 years of experience
553 reviews
Scott
34 years of experience
Mazda CX-9 V6-3.7L - Brakes, Steering and Suspension Inspection - Broomfield, Colorado
I wasn’t appreciative of Scott when he left from helping me. and I want to make it right with him. He found the reason my brakes had gone out, and Mazda honored the extended warranty. Without him deluge rly researching what caused my brakes to fail I might have spent hundreds of dollars, and been without a car over Christmas. I was upset I had to pay the charge to inspect my car and I was super afraid the dealership was going to fund something else to be the problem.. money just kept trickling out. So Scott, thank you for checking every possible thing on my car before you left, waiting for me to talk to Mazda so you heard what they were telling me, and for being a great mechanic that cares.

Ramon

20 years of experience
166 reviews
Ramon
20 years of experience
Mazda CX-9 V6-3.7L - Valve Cover Gasket - Tucson, Arizona
He did a good job but only two things happened during the service. Firstly, he came 3 hours late because he did not expect other customer will take a while. Secondly, he recommended to replace Spark Plugs and told me that will take half an hour to do them but indeed took 5 min.

Jerome

34 years of experience
206 reviews
Jerome
34 years of experience
Mazda CX-9 V6-3.7L - Car or steering wheel shakes when braking - Laurel, Maryland
Knowledgeable

Excellent Rating

(203)

Rating Summary
186
11
1
2
3
186
11
1
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3
Number of Mazda CX-9 services completed
2233+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mazda MECHANICS
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