Certain components of your motor vehicle are essential to its correct operation, and to go further more, fundamental to your safety and that of other users. Your braking system is one of them, and if there’s one thing that must be in good operating conditions, it’s this one. When you begin to have brake problems you need to manage it right away, that’s why our team has created this article on brake fluid leaks on Audi A4 to help you address this difficulty in the right method and deal with it quickly. For this, we will first discover the purpose of brake fluid, then, what causes a brake fluid leak on your Audi A4 , and finally, how to fix such a leak.

brake-fluid-leak-audi-a4

What is the purpose of brake fluid on a Audi A4?

So we begin our article by quickly explaining the purpose of this famous brake fluid in the braking system of your Audi A4. To figure out, a brake system works with a closed hydraulic circuit, that is to say that you will have rigid hoses filled with brake fluid that are pressurized by the master cylinder, and when you press your brake pedal, your brake fluid will be pressurized and will actuate your brake calipers so that they pinch the brake pads on your discs. It is therefore important that you constantly have the right level of brake fluid on your Audi A4, if you don’t know how to execute this manipulation, consult our article on this subject.

Motives of a brake fluid leak on your Audi A4

We now proceed to a more necessary part to help you figure out why you have a brake fluid leak on your Audi A4 .

What causes a brake fluid leak on a Audi A4?

First, we’ll describe the different possible origins of the leak of your Audi A4. Here are the ones down below:

  • A damaged brake hose: It’s one of the most common causes, one of the brake hoses has been cut and you lose brake fluid and pressure through this hole.
  • A faulty master cylinder on Audi A4 can lead to leaks on its different entries or exits.
  • In most cases this comes about when a brake drain has been performed not too long ago, and it is quite often not tightened effectively.
  • Wheel cylinder: Just present on drum brakes, this part can leak and bring about an imbalance in the braking.

How to spot a brake fluid leak on Audi A4?

We will now give you the different tips and symptoms to interpret to examine that you have a brake fluid leak on your Audi A4 , find them down below:

  • If the ABS warning light of your Audi A4 is on , you have to examine directly the condition of your circuit, do not hesitate to consult our dedicated article to have all the procedures to execute.
  • If your Audi A4 pulls to the left or right when you brake you may possibly have a brake fluid leak.
  • This is one of the most visible symptoms, if you feel that your pedal is much much easier to press down and goes up more slowly, it is very likely that you have a loss of pressure in your brake system.
  • More obvious, but if you find brake fluid on one of these elements you are bound to have a leak since this circuit is designed to be closed.

How to fix a brake fluid leak on Audi A4?

The only remedy when you encounter a brake fluid leak on your Audi A4 is to go to your garage. If it is light, verify your level and drive carefully to the garage, if it is too big don’t drive and have your car towed. A general breakdown of your brake system will lead to an accident. You can, nevertheless, make a few frequent checks to limit the risks:

  • verify the brake fluid level repeatedly.
  • Purge your brakes every two years or 40, 000 miles.
  • Change the brake fluid if you feel the brakes on your Audi A4 become “soft”.

If you wish more guides on the Audi A4, go to our Audi A4 category.