How Much to Change Brake Fluid Bmw?

Brake fluid is a type of hydraulic fluid used in brake systems. It transfers the force from the pedal to the brakes and helps to dissipate heat. Over time, brake fluid can become dirty and can cause the brakes to feel spongy or unresponsive. That's why it's important to change the brake fluid on a regular basis.

For BMWs, the recommended interval for changing brake fluid is every two years or when the Warning Light comes on. The Warning Light will come on when the fluid level drops below the MIN mark or if the fluid is dirty.

To change the brake fluid, you'll need a few tools and supplies. First, you'll need a new brake fluid. BMW recommends Castrol DOT 4 LV. You'll also need a lint-free cloth, a catch basin, and a funnel.

Begin by opening the hood and locating the brake fluid reservoir. It's usually on the driver's side near the firewall. Remove the cap and use the lint-free cloth to clean the area around the reservoir. This will help to prevent dirt and debris from entering the system when you open it.

Next, place the catch basin beneath the reservoir and open the bleeder valves. The valves are located on the brake calipers or wheel cylinders. Each valve has a small rubber cap that needs to be removed. Once the valves are open, press the brake pedal slowly and steadily until the fluid begins to flow out of the reservoir. Continue to depress the pedal until the fluid becomes clear.

Once the fluid is clear, close the bleeder valves and replace the caps. Then, use the funnel to add new brake fluid to the reservoir. Fill it to the MAX mark and replace the cap.

Now, start the engine and pump the brake pedal slowly to build up pressure. The pedal should feel firm. If it doesn't, bleed the brakes again.

Once the brakes feel firm, you can take the car for a test drive. Be sure to drive slowly and carefully at first to make sure the brakes are working properly.

It's important to change your brake fluid on a regular basis to keep your brakes working properly. By following the recommended interval, you can help to ensure that your braking system is always in top condition.

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The consequences of not changing your brake fluid are very serious and can lead to brake failure. When brake fluid becomes old, it can become contaminated with water and other contaminants, which can lead to corrosion and degradation of the brake components. This can cause the brake pedal to feel spongy, and eventually the brakes may not work at all. In addition, old brake fluid can cause the brake calipers to stick, which can cause brake pads to wear out prematurely.

As your brake pads wear down, they create dust. This dust mixes with your brake fluid and causes it to become dirty. When your brake fluid becomes dirty, it can no longer do its job properly.

It is recommended that you have your brake fluid changed every 20,000 miles or so. However, if you notice that your brake pedal feels spongy, your brakes are making noise, or your brake warning light is on, it's a good idea to have your brake fluid checked.

If it's time to change your brake fluid, your mechanic will drain the old fluid from your brake system and replace it with new fluid. This is a simple and relatively inexpensive process that can help keep your brakes working properly.

Consider reading: Bleed Brakes