How To Remove Brake Fluid From A Master Cylinder

How To Remove Brake Fluid From A Master Cylinder

If your brakes are giving you problems, one of the first steps you should take is to learn how to remove brake fluid from the master cylinder.

How To Remove Brake Fluid From A Master Cylinder

This is especially important if you notice that your car is suddenly slowing down or stopping entirely. There could be a number of reasons why this has happened. It may be a combination of items that need to be taken care of together.

Removing the Reservoir

It is possible that some of the fluid may have come out of the brake lines while you were driving. While your car is running, the brakes will draw in the excess fluid, and it makes its way into the master cylinder. The problem is that it can be very hard to get all of the fluid back out. You need to clean out the reservoir to get rid of any extra fluid that might be left behind. Removing the reservoir is the best step you can take to correct the problem.

Items Needed

Some of the items needed to take care of how to remove brake fluid from the master cylinder to include an automatic drain plug, a wrench, and enough extra fluid to make the brake bleed using the OEM pump. It is possible for you to buy special tools to assist in the process, but it is far easier to purchase the items needed to perform the job on your own. You do not need to have a lot of experience doing this. There are plenty of manuals available that explain how to remove fluid and what tools are needed to do so.

Steps to Remove Brake Fluid From the Master Cylinder

#1 Remove Screws From Master Cylinder

You will first need to remove the three screws that attach the master cylinder to the engine. This is located alongside the drain plug. Once the three screws are removed, you can separate the master cylinder from the engine. The engine and master cylinder are both safe inside the engine compartment.

#2 Pull the Master Cylinder Straight Up

Next, you will need to locate the master cylinder valve. Once the master cylinder valve has been located, pull it straight up through the firewall. Once the master cylinder valve is pulled straight out, you will be able to access the contents. Once you have access to the contents, you will be able to identify the problem.

#3 Required Items

Some of the items you will need include a funnel, clean water and a towel. The goal of this process is to make sure that the contents of the reservoir are well contained within the reservoir before you fill it again. Once you have conducted this step, you will need to replace the old brake fluid into the new one. You should ensure that you do not overload the system by topping off the new fluid reservoir.

#4 Remove the Old Fluid

Once you have replaced all of the new fluid into the system, you should ensure that you follow all of the steps above. The last step of this process is to drain the system. By removing the drain plug under the vehicle, you can remove the old fluid from the system. If you find that there are any leaks, you will need to repair these. This is an easy process but you will need to be careful to prevent any leaks or punctures from occurring while you are trying to remove the fluid.


It should now be relatively simple to answer the question, how to remove brake fluid from a master cylinder. If you find that this process is too difficult, you may want to consider calling a professional who can complete the task for you. This is especially true if you find that your brake fluid reservoir is leaking or you need to perform maintenance on an area of your car. Remember that proper maintenance of your car is essential to get the most out of it and to keep it running in top shape.