Among the small service works that you should do on a consistent basis on your car, to fill up the brake fluid level of your BMW 4 Series is one of the great classics. Nevertheless this work is elementary to perform, some of you are almost certainly trying to figure out why to do the brake fluid level on your car? And others are worried about how to do the brake fluid level on your BMW 4 Series? We will now answer these questions.


Advantage to always have the brake fluid level up in your BMW 4 Series

So we commence our content page with the significance of verifying the brake fluid level on a BMW 4 Series. This fluid has an important role on your car, transmit the braking power to the wheels and thus stop your car. However, it is possible that in the long run you may lose brake fluid without any particular leak (without any leakage). It is consequently necessary to examine the brake fluid level of your BMW 4 Series regularly (every 10,000km for example). It is also beneficial to flush the system every 50,000km because as time passes the brake fluid will lose its features. This procedure is particularly simple and does not require amazing experience of mechanics, so it is easy for all BMW 4 Series owners to do it themselves. If the Brake light on the dashboard of your BMW 4 Series does not correspond to a lack of brake fluid, do not think twice to read our content page for details. However, there are some measures and rules to respect that we will notice in the following section of this content page.

How to fill up the brake fluid of a BMW 4 Series

So now we will show to you how to do the brake fluid level on a BMW 4 Series. Please note that this is very elementary to do. However, you will have to examine which brake fluid is the right one for you between DOT 3, DOT 4 and DOT 5. Most vehicles use either DOT 3 or DOT 4. You will get this data in the user manual of your BMW 4 Series. Now here are the steps to stick to to make your level:

  • Open your bonnet and identify your brake fluid reservoir, it is very easy to find, it is generally made of whitish/transparent plastic, it is set on top of the master cylinder (metal part) and has a yellow cap.
  • Once uncovered, examine the instructions on the cap cautiously so as not to make any mistakes within the the procedure, we recommend you to clean the cap and the tank before opening. You will now be able to look at the side of the tank and observe the “Min” and “Max” marks on the side of the tank, which give you the range in which the level should be.
  • If the level is good enough do not touch anything, or if you are close to or below the low mark, open the cap and fill it gently with the brake fluid appropriate for your BMW 4 Series up to the mark “Max”.
  • If the level was below the “Min” mark before you examined the brake fluid level in your BMW 4 Series, be sure to examine the level in a few days/weeks to make certain you don’t have a leak in the brake system

That’s it, you now have all the information you need to safely fill the brake fluid level of your BMW 4 Series.

If you want more tutorials on the BMW 4 Series, go to our BMW 4 Series category.