How Often Does My Brake Fluid Need a Flush?

A brake is used to slow down a vehicle to a stop. When the driver steps on the brake pedal, the force is transmitted from the car to the brake calipers and pads through a fluid. The fluid travels to slave cylinders at each wheel and fills them, forcing pistons out to apply the brakes. Brakes transmit force to tires by using friction. Modern vehicle have a hydraulic brake system on all four wheels. There are two types of brakes; disk or drum brakes.

What is brake fluid?

Brake fluid is a type of hydraulic fluid used in brakes and hydraulic clutch applications in automobiles. It is used to transfer force applied to the brake pedal by the driver into pressure exerted on the brake system, and to intensify braking power. Brake fluid is efficient and works because liquids are not appreciably compressible. Additionally brake fluid serves as a lubricant for all removable parts and prevents corrosion, which allows braking systems to function for longer periods of time.

How often should brake fluid be flushed?

Brake fluid should be changed every two years, this prevents brake failure and maintains the boiling point at a safe level. Periodic flushing and refilling is necessary for car maintenance.

Brake fluid needs to be flushed because the brake system is not indestructible. The rubber in the valves in the components of the brake system eventually deteriorates. These sediments end up in the brake fluid, or the fluid itself gets old and worn out. Moisture can invade the brake system, which can lead to rust formation. Eventually, the rust will flake off, into the brake fluid. These flakes or sediments can cause brake fluid to have a brown, sudsy and muddy appearance. If not flushed this causes a brake system to be ineffective and have decreased stopping power.


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Recent Brake System Flush reviews

Excellent Rating

(2,521)

Rating Summary
2,376
85
18
10
32
2,376
85
18
10
32

Simon

30 years of experience
19 reviews
Simon
30 years of experience
Mercedes-Benz CLK350 V6-3.5L - Brake System Flush - Albuquerque, New Mexico
On time. Very professional. Gave car a 50 point check. Advised me on the brake pedal question I had. All excellent,!
Hyundai Sonata - Brake System Flush - Albuquerque, New Mexico
He was right on time. Professional and friendly. He advised and showed me that the brake pads did not need to be replaced yet.

Patrick

33 years of experience
1408 reviews
Patrick
33 years of experience
Nissan Versa L4-1.6L - Brake System Flush - Austin, Texas
Arrived earlier than set appt time! Very efficient still; a bit bummed out that I wasn't able to get all the expected service today-- part was incorrectly ordered for him-- but Patrick has been helpful and professional about everything.
Ford Focus - Brake System Flush - San Marcos, Texas
Always ready & he knows what he's talking about when it comes to fixing any problem that you can think of! I highly recommend if you need a reliable mechanic use Patrick!

Brandon

5 years of experience
34 reviews
Brandon
5 years of experience
Hyundai Santa Fe L4-2.4L - Brake System Flush - Nashville, Tennessee
Second time using Brandon and was enjoyed his service. I would love to use him for my next service.

Joel

11 years of experience
146 reviews
Joel
11 years of experience
Hyundai Sonata V6-3.3L - Brake System Flush - Flower Mound, Texas
Joel arrived and we discussed repairs. He informed me the intake gasket had been replaced. THE Timing gasket , did not need replacement, he determined clean cover and tighten bolts to manufactured specs. Went to fluid flushes.

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