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Sam Bennett

Sam Bennett

23 Aug 2023


43 Read.

BMW Brake Fluid Change

Brake fluid maintenance is a critical aspect of vehicle safety and performance. This guide focuses on the importance of regular BMW brake fluid change, providing a detailed step-by-step procedure for a successful brake fluid change. By taking these steps, BMW owners can make sure their brakes work well and improve the safety of their cars as a whole.

Understanding Brake Fluid and Its Role in BMW Vehicles

BMW Brake Fluid Change

Brake oil is a very important part of how BMW cars stop. It sends the force you put on the brake pedal to the brake parts, which lets you stop the car well. Most BMW cars use either DOT 4 brake fluid or DOT 5.1 brake fluid. Keeping the brake fluid at the right amount is important for the brakes to work well and last as long as possible.

Signs It’s Time to Change Your BMW’s Brake Fluid

BMW Brake Fluid Change

For repair to be done on time, it is important to know the signs of brake fluid that has gone bad. Some of the most common signs are brakes that are soft or don’t work, less effective stopping, and fluid that is dark or dirty.

Some BMWs may also have warning lights, like a brake fluid warning light, to let drivers know when they need to change the fluid.

You may also want to read: How to Build Your Own BMW

Necessary Tools and Materials

Before initiating a BMW brake fluid change, it’s important to gather the required tools and materials. These usually include a brake bleeder wrench, a brake bleeding kit, an appropriate container for collecting the old fluid, and the suggested type of brake fluid for your BMW model. Also, don’t forget to bring safety gear like gloves and masks to protect yourself while you’re working.

Step-by-Step Guide: Brake Fluid Change Procedure for BMW Cars

To change the brake fluid in your BMW, you need to do the following:

BMW Brake Fluid Change

Step 1: Preparing the vehicle for the brake fluid change

Find the brake fluid tank in your BMW before you start the process. Find out where it is by looking at the owner’s guidebook. Also, make sure the car is on a level area and that you have the right tools and safety gear ready.

Step 2: Draining the old brake fluid

Do a brake cleaning process to get rid of the old fluid. This gets rid of all the old oil and any air bubbles in the system. Start with the wheel that is farthest from the brake fluid tank and connect the brake bleeding kit to the brake caliper bleeder screws.

Open the screws and let the fluid run into the container. Do this over and over for each wheel until you see fresh fluid.

BMW Brake Fluid Change

Step 3: Refilling the system with fresh brake fluid

Choose the type of brake fluid that your BMW’s owner’s manual tells you to use. Start by putting the new brake fluid into the tank, being careful not to let any air bubbles in.

Then, use the brake bleeding kit to bleed the system again, starting with the wheel farthest from the tank and making your way to the wheel closest to it. Make sure that there are no air bubbles and that the new fluid moves through the whole system.

Step 4: Testing the brakes and ensuring proper fluid circulation

After changing the brake fluid, it’s important to test the brakes to make sure they work well. Start the engine and press down on the brake pedal several times to make sure it feels solid and quick.

Check for things that don’t seem right, like strange noises or movements. Also, look at the brake lines to see if there are any signs of fluid leaks or dirt.

Expert Tips and Best Practices for BMW Brake Fluid Changes

Here are some more best practices and tips to think about:

BMW Brake Fluid Change

BMW recommends the BMW brake fluid change every two years or approximately every 30,000 miles, whichever comes first.

But it’s important to check the owner’s manual for your BMW model to see what the maker recommends for upkeep, since it may be slightly different.

Tip 2: Factors that can accelerate brake fluid degradation

High temperatures, the absorption of water, and the buildup of contaminants are all things that can cause brake fluid to break down. Brake oil can break down faster if you drive aggressively or in difficult situations, such as heavy traffic or mountainous terrain. Keeping these things in mind can help you decide if you need to change your brake fluid more often.

BMW Brake Fluid Change

Tip 3: Importance of consulting the BMW owner’s manual for specific instructions

The way to change the brake fluid may be a little different for each BMW model. So, it’s important to check the owner’s manual for directions that are specific to your model and any other suggestions BMW may have.

By following the manufacturer’s instructions, you’ll be sure to change the brake fluid properly and keep the guarantee on your car.

Tip 4: Advice on seeking professional help for complex brake fluid maintenance tasks

Many car owners can change the brake fluid on their own, but more complicated repair tasks, like replacing brake lines or ABS units, may need the help of a trained mechanic.

If you’re not sure if you can do these things or if you run into unexpected problems while changing the brake fluid, it’s best to get help from a professional to avoid safety risks and make sure the job is done right.

BMW ModelRecommended Brake Fluid Type
3 Series (E90, F30)DOT 4 or DOT 5.1
5 Series (E60, F10)DOT 4 or DOT 5.1
X5 (E70, F15)DOT 4 or DOT 5.1
M3, M5, M6DOT 4 or DOT 5.1
X3, X4, X6DOT 4 or DOT 5.1

Please keep in mind that this table is just a rough guide for popular BMW types. Always check the owner’s instructions for your BMW to make sure you’re using the recommended type of brake fluid for your car.

BMW Brake Fluid Change Cost

BMW Brake Fluid Change

The cost of a BMW brake fluid change typically falls within a range of $100 to $250. However, it’s essential to remember that this estimate can vary significantly depending on the factors mentioned above. Independent service shops may have lower prices than BMW stores.

For example, a BMW driver in a big city could expect to pay between $150 and $200 at a private repair shop to change the brake fluid, if no other services are added. On the other hand, the same work might cost between $200 and $250 at an approved dealership.

Final Thought

BMW brake fluid change are crucial for maintaining the safety and performance of your vehicle. By following the step-by-step instructions in this piece, you can change your brake fluid and make sure your brakes work at their best.

Make sure to follow the maintenance plan suggested by the maker and check the owner’s manual for any model-specific directions.

By making brake fluid repair a top priority, you’re taking an important step toward making sure your BMW is safe and will last for a long time.

Youtube Video About BMW Brake Fluid Change


How can I tell if my BMW’s brake fluid needs to be changed?

Look out for signs such as spongy or inattentive brakes, reduced stopping efficiency, or dark and contaminated fluid. BMWs may also have a brake fluid warning light that turns on when the fluid needs to be changed.

Can I use any type of brake fluid for my BMW?

It is very important to use the type of brake oil suggested for your BMW model. Most BMW cars use either DOT 4 or DOT 5.1 brake fluid. Check your vehicle’s owner’s instructions to make sure you’re using the right fluid for it.

How often should I change the brake fluid in my BMW?

BMW suggests changing the brake fluid every two years or approximately every 30,000 miles, depending on which comes first. But check your BMW’s owner’s manual for the repair plan that the company recommends for your model.

Can I perform a brake fluid change on my BMW myself, or should I seek professional help?

Most people who own cars can change the brake fluid on their own. But more complicated repair tasks or problems that come up out of the blue may need the help of a professional. If you don’t know what to do or feel nervous, it’s best to ask a trained mechanic for help.

What happens if I neglect to change the brake fluid in my BMW?

If you don’t change the brake fluid, the brakes might not work as well, they might break more often, and the brake parts might get damaged. Changing your BMW’s brake fluid on a regular basis is important for keeping your brakes safe and making sure they last as long as possible.

BMW Brake Fluid Change