Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. How Often Does My Brake Fluid Need a Flush?

How Often Does My Brake Fluid Need a Flush?

brake fluid 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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...
P0359 OBD-II Trouble Code: Ignition Coil I Primary/Secondary Circuit Malfunction
P0359 code definition The P0359 code indicates that a fault has been detected in one of the vehicle’s ignition coils, generally the number 9 coil. This code can also be associated...

Related questions

Q: My abs and parking brake lights are coming on and staying on

Your ABS/parking brake lights are probably indicating multiple problems Check the simple possibilities first like the brake fluid level and the brake lights working. Then check wheel speed sensors (some times bad wheel bearings can cause a wheel speed sensor...

Q: Q: What does the anti-lock brake system (ABS) Warning Light mean?

The anti-lock brake system (ABS) Warning Light is located on the instrument panel. This light illuminates when your ABS is not operating properly. Since your ABS is a key part of your brake system, you should have your vehicle inspected...

Q: No brake fluid is getting to the rear brakes

As far as the brake issue, yes, there needs to be a check to see if there is brake fluid entering into the proportional valve. If there is fluid supply to the valve but not out then the valve will...