How to check your Audi brake fluid level? You want to maintain the safety and performance of your Audi while driving through Las Vegas. For all of your Audi maintenance and service needs, the service team at All European Auto Repair is ready to help you. It includes teaching you the basics of maintenance, such as how to check the brake fluid at home.


What is Brake Fluid?

The brake system on your Audi needs to be regularly lubricated to prevent additional wear and tear from friction, much like the engine does. Hydraulic liquid brake fluid lubricates the braking system and facilitates pressing the brake pedal. 

Your braking system may corrode and wear out more quickly if you drive in Las Vegas with dirty or insufficient brake fluid, which could result in brake failure. 

The following are signs that the brake fluid in your Audi needs to be checked: 

  • Low Brake Fluid Warning
  • ABS Light Blinks or Stays on
  • Brake Light on
  • The brake pedal is soft or can be pressed down without resistance.


What Color is Brake Fluid?

The new brake fluid should be transparent with a little yellow tint. You’re more unlikely to drive with dirty brake fluid when you monitor the color of the brake fluid. Consider the following: “What color is the brake fluid?” If it is dark when you check it, it’s time to make an appointment for Audi brake service in Las Vegas and change your brake fluid, or you can replace it yourself. 

Steps on How to Check Your Audi Brake Fluid

Here are steps for how to check the brake fluid of your Audi.

Find The Vehicles Engine Bay

Finding the location of your car’s engine bay should be the first step. Although the precise location varies from car to car, it is typically located in the front below the bonnet. Check the manual for your car if you’re unsure where the engine bay is located.

Once you have located the engine bay, open it up.

Audi Brake Repair in Las Vegas

Locate The Brake Fluid Reservoir On Your Car

The vehicle’s brake fluid reservoir can be located on either the driver’s or passenger’s side, but it is typically found near the back of the engine compartment. Generally, the reservoir resembles a container with yellow icons and a black screw-on lid. The most widely used icon is an octagonal form with a circle and brackets on each side.

The reservoir’s maximum and minimum fluid levels should be marked down its side and have a semi-translucent appearance.

A somewhat golden color indicates clean braking fluid, though this may be difficult to discern in a dirty reservoir. Make sure the exterior is clean to have a more incredible view of the interior and the fluid.


Check the Brake Fluid Level

The brake fluid reservoir features markings to show the maximum and minimum fluid levels, as described in the previous step. Topping off the fluid if it is below the minimum level is necessary.


Fill With The Proper Brake Fluid

You must proceed cautiously when taking this step. Ensure you use the appropriate brake fluid type from the various available varieties for your car. The type of brake fluid your car requires can be found in the manual if this is the first time you have topped off your brake fluid.

DOT 3, DOT 4, and DOT 5 are some of the most widely available varieties of braking fluid.

To help you fill off the brake fluid, use a funnel. To fill the maximum marker, pour enough liquid. Brake fluid can contaminate paint, so if there isn’t enough space to use a funnel, properly pour the liquid into the reservoir to prevent spills. If any spill occurs, thoroughly wipe the area to prevent further damage.


Be Careful Of Warning Signs

A low brake fluid level may be a sign of worn brakes. Ensuring the brakes are in good working order is essential to prevent accidents.

Regularly needing to fill up your brake fluid may indicate a leak. Your car must be inspected and fixed for safety if such is the case.


Clean and Close

Once you’ve completed topping off, check that everything is correctly closed, including the lid of the seal prof reservoir, and clean up any spills.

How To Add Brake Fluid?

If your brake fluid level is low, topping it up is easy.

  • Park your car on a level spot on the surface.
  • To prevent debris from falling into the reservoir, clean the brake fluid’s reservoir cap if it is dusty.
  • Remove the cap. Brake fluid may need to be changed in a repair shop if it is mainly black or contains debris, as it may have reached the end of its useful life.
  • Add brake fluid into the reservoir slowly and cautiously until the level hits the maximum fill sign.
  • Screw the reservoir cap securely.
  • Recheck the fluid to ensure a successful fill after a brief driving time and periodic braking on a level surface.

Avoid spilling brake fluid on your car’s paint or inside the engine compartment. If so, thoroughly clean the surface by wiping it off with lots of water because it’s oily.


What is the difference between DOT 3 and DOT 4 brake fluid?

DOT 3 and DOT 4 brake fluids are two common types of hydraulic brake fluids used in automotive brake systems.

Here’s a breakdown of the key differences between DOT 3 and DOT 4 brake fluid:


  • DOT 3 Brake Fluid: DOT 3 brake fluid is glycol-based and typically contains a mix of glycols, glycol ethers, and corrosion inhibitors. It has a lower boiling point compared to DOT 4 fluid.
  • DOT 4 Brake Fluid: DOT 4 brake fluid is also glycol-based but is formulated at a higher boiling point. It often contains borate esters and other additives that enhance its performance under high-temperature conditions.


  • DOT 3 Brake Fluid: DOT 3 fluid suits most everyday driving situations and standard braking systems. It performs adequately under normal conditions but may experience brake fade and reduced effectiveness under heavy braking or extreme temperatures.
  • DOT 4 Brake Fluid: DOT 4 fluid is designed to handle more demanding conditions, such as those encountered in high-performance vehicles or heavy-duty applications. Its higher boiling point makes it less prone to brake fade and vapor lock, ensuring consistent braking performance under extreme conditions.


  • DOT 3 and DOT 4 brake fluids are usually compatible, so you can generally mix them without causing significant issues. However, using the type of brake fluid specified in your vehicle’s owner’s manual is always recommended to ensure optimal performance and safety.

What are the consequences of having low brake fluid levels?

Low brake fluid levels in a vehicle can have serious consequences for both your safety and the overall performance of your vehicle. Brake fluid plays a crucial role in the hydraulic braking system, and when it’s low, several issues can arise:

  • Reduced Braking Performance: Reduced braking performance is one of the most immediate and dangerous consequences of low brake fluid. Brake fluid transmits the force applied to the brake pedal to the brake components (calipers or wheel cylinders) to generate the necessary stopping power. When the fluid level is low, there may not be enough pressure to engage the brakes effectively, resulting in longer stopping distances and compromised safety.
  • Increased Risk of Brake Failure: Air getting into the brake lines might be caused by insufficient brake fluid. Air bubbles can compress, unlike brake fluid, which is nearly incompressible. As a result, you may experience a soft or spongy brake pedal feeling. In extreme cases, this can lead to brake failure, making it difficult or impossible to stop your vehicle safely.
  • Damage to Brake Components: Low brake fluid levels can cause the brake components to operate under increased stress and heat, potentially leading to premature wear and damage. That can result in costly repairs, such as replacing brake pads, rotors, calipers, or even the entire braking system.
  • Increased Maintenance Costs: Neglecting low brake fluid levels can result in more frequent maintenance and repairs. Regularly checking and maintaining proper brake fluid levels can save you money in the long run by preventing more extensive damage to your braking system.

To avoid these consequences, you must perform essential regular vehicle maintenance, which includes checking your brake fluid levels and topping them up as needed.

Suppose you suspect a brake fluid leak or have concerns about your braking system. In that case, it’s crucial to have your vehicle inspected by a qualified Audi mechanic to address any issues promptly. 

What are the consequences of having high brake fluid levels?

Having high brake fluid levels in your vehicle’s brake system can lead to several potential consequences and issues:

  1. Brake Pedal Feel: A spongy or mushy brake pedal feel is one of the most noticeable effects of high brake fluid levels. When there is excessive fluid in the brake lines, it can cause the pedal to feel soft and less responsive. It can compromise your ability to modulate and apply the brakes effectively.
  2. Brake Fluid Contamination: High brake fluid levels can sometimes indicate contamination in the brake fluid system. Contaminants like water, dirt, or debris can enter the system and mix with the brake fluid. That can lead to reduced brake fluid performance and, in extreme cases, damage to critical brake components.
  3. Brake Fluid Leakage: Excessive brake fluid levels can cause pressure to build up in the brake system. This increased pressure can lead to leaks in the brake lines, hoses, or seals, resulting in the loss of brake fluid. Brake fluid leaks are a safety hazard and should be addressed promptly.
  4. Potential Damage to Brake Master Cylinder: In some cases, a malfunctioning brake master cylinder may cause high brake fluid levels. If the master cylinder is overfilling the brake fluid reservoir, it can eventually lead to damage or failure of this critical component, necessitating costly repairs.

High brake fluid levels can result in various negative consequences. It is essential to address this issue promptly by inspecting and maintaining your vehicle’s brake fluid system to ensure safe and effective braking.

If you suspect a problem with your brake fluid levels, having your Audi inspected and serviced by a qualified Las Vegas auto repair mechanic is advisable.

Audi Auto Repair Shop in Las Vegas

Still not sure how to check your Audi brake fluid?

If you’re still unsure how to check your Audi brake fluid, don’t worry – we’re here to help at All European Auto Repair! When it comes to maintaining your vehicle’s safety, understanding the condition of your brake fluid is crucial.

If you’ve noticed a warning light on your dashboard or want to know how to do it, we’ve got you covered. Our professionals have the necessary tools and expertise to ensure your Audi brake system is in top-notch condition. 

Trust us for professional tips and guidance on brake fluid checks. For questions or more information, call us at (702) 363-9191.