Ravenol

Audi Brake Fluid

Audi Brake Fluid Change Intervals

As an independent Audi service garage with over 27 years of hands-on experience, we know what fails on Audis and why. We feel that changing your fluids is one of the most important preventive maintenance routines. Yet, for many Audi owners, this seems to be one of the most neglected areas of maintenance. Thoroughly flushing your fluids at the proper intervals can help your Audi reach 150,000 miles and beyond!

You should perform an Audi brake fluid flush every 30,000 miles or 3 years. It's important to use the right brake fluid. We recommend DOT 4 Audi brake fluid, which meets necessary fluid specifications. Changing Audi brake fluid is recommended and easiest when performing Audi brake rotor or pad service. Alternating between the 2 different colors makes it easy to know when you've completely flushed out the old Audi brake fluid.

What you need to know about the Audi brake fluid system.
How do I know my Audi brake fluid needs to be changed?
Wondering how to flush and change Audi brake fluid?

Audi Brake Fluid Specifications and Features:

Blauparts® only stocks Audi brake fluid that meet approved Audi Vw specifications. All customers should check their Audi owner's manual and subsequent Audi factory service manual for what Audi brake fluid is recommended for use in their vehicle.

Since 1946, Ravenol of Germany has been at the forefront of innovation, creating the highest quality oils and lubricants specific to advanced engine and transmission designs. Ravenol is recognized throughout Europe as a leader in fluid technology, keeping pace with the latest fluid specifications. They've succeeded in meeting and often exceeding the performance requirements set by leading European automobile manufacturers. Ravenol's innovative and technologically advanced lubricant product line has out performed many of the leading motor oil companies. They have been awarded formal approvals from leading vehicle manufacturers such as Mercedes Benz, Volkswagen, Audi, BMW, Porsche, Volvo, ZF, and many more. Ravenol motor oils provide superior lubricant protection reducing friction, resulting in optimal fuel economy and low emissions under all driving conditions. Ravenol lubricants are the best choice for the discriminating Audi owners.

Audi Brake Fluid - Ravenol Audi Brake Fluid Ravenol oils contain proprietary additives that offer unique profile characteristics specifically formulated for the advanced requirements of European cars. Most German automotive owners want only the best fluids. Blauparts believes in providing oils and lubricants that are formulated and engineered to meet your car's stringent specifications.

Audi Brake Fluid - Audi Dot 4 Brake Fluid

DOT 4 Brake Fluid

Ravenol DOT 4 is a high performance brake fluid designed for vehicles fitted with modern braking and ABS systems. Ravenol DOT 4 brake fluid offers specially selected additives to give the best all around braking.

Audi Brake Fluid Meets and Approved For:


Applicable for hydraulic braking and clutch systems.
Compatible with all brake systems requiring DOT 4 brake fluids.

Ravenol DOT 4 Audi Brake Fluid Features:

1 Liter Bottle (1000ml) Mfd in Germany - Gold in color.

• Exceptional performance.
• A dry boiling point of 500° F
• A wet boiling point of 330° F.
• Gives ABS and brake systems optimum efficiency and lubrication.
• Long life Audi brake fluid with 3 year change interval.
• Designed for excellent resistance to moisture absorption.
• The perfect Audi brake fluid for all driving conditions.

LINKS
Audi Brake Fluid - DOT 4


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Audi Brake Fluid - Audi Dot 5.1 Brake Fluid

DOT 5.1 Brake Fluid

Ravenol DOT 5.1 is a high performance street or racing brake fluid designed for vehicles fitted with modern braking and ABS systems. Ravenol DOT 5.1 brake fluid offers specially selected additives for superior braking in extreme conditions.

Audi Brake Fluid Meets and Approved For:


Applicable for hydraulic braking and clutch systems.
Compatible with all brake systems requiring DOT 5.1 brake fluids.


Ravenol DOT 5.1 Audi Brake Fluid Features:

1 Liter Bottle (1000ml) Mfd in Germany - Gold in color.

• Exceptional performance.
• A dry boiling point of 536° F
• A wet boiling point of 356° F.
• Gives ABS and brake systems optimum efficiency and lubrication.
• Long life Audi brake fluid with 3 year change interval.
• Designed for excellent resistance to moisture absorption.
• The perfect Audi brake fluid for all driving conditions.


LINKS
Audi Brake Fluid - DOT 5.1

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How Often Does My Audi Brake Fluid Need To Be Changed?

We recommend flushing the brake fluid system about every 30,000 miles or 3 years. Changing Audi brake fluid is recommended and easiest when performing Audi brake rotor or pad service. Most Audi's came from the factory with a light amber colored brake fluid. If your original Audi brake fluid has turned a dark amber color it can be changed using the DOT 4 brake fluid above.

What You Need To Know About Audi Brake Fluid System:

The Audi brake fluid reservoir is vented and thus has entry points for dirt and moisture. Rubber brake hoses are permeable and over time allow moisture to get into the brake fluid. Audi brake fluid is like a sponge. Something as simple as moisture can be a real problem. Moisture in the Audi brake fluid changes its composition, leading to a lower boiling point for the fluid. This causes a vapor leak in the Audi brake system, resulting in brake fade. Contaminated brake fluid moving through the brake lines also leads to sediment building up in the brake caliper, affecting the cylinder bores. Some of this dirt and moisture laden fluid also travels to the ABS unit where it causes the solenoids inside to behave erratically. Just 2% moisture in Audi brake fluid is considered excessive. A 3% contamination level in DOT 4 brake fluid can lower the boiling point nearly 50%.

Note: We don't recommend silicone brake fluids (labeled DOT 5). It is true that the fluid itself is known for being immune to moisture, but rather than absorbing it, it enters the brake system and begins to collect in the Audi brake calipers. We feel DOT 5 silicone brake fluid can cause faster wear on the brake system seals. In our own repair service facility we've seen the best results from the above DOT 4 Audi brake fluid.

How To Flush And Change Audi Brake Fluid:

This is a basic overview of how we flush Audi brake fluid. It is not intended to replace the factory manual. Please refer to the factory manual for detailed instructions.

Changing Audi brake fluid is recommended and easiest when performing Audi brake rotor or pad service.
Refer to the factory manual for Audi brake fluid system instructions.
We recommend having an A.S.E. certified Audi mechanic change your Audi brake fluid.
Always wear gloves and wear safety goggles when handling Audi fluids.
Getting Audi brake fluid on your vehicles paint finish will damage it.

There are several different methods that are used to flush Audi brake fluid:

• Pressure bleeding
In our experience vacuum brake bleeders and inexpensive pressure bleeders don't work well because they cannot pull the Audi brake fluid through the ABS unit. You'll need an expensive commercial grade pressure bleeding unit to work effectively.

• Gravity bleeding
We use this method in our own repair shop. Gravity bleeding works very well using automotive lifts that suspend the car 6 ft in the air.

• Pedal bleeding
Occasionally the good old fashion pedal bleeding is employed. This method always works and isn't that hard to do.

Bleeding Audi Brake Fluid Using The Brake Pedal Method:

The equipment needed is:

  • A piece of clear hose that will fit onto the bleeder valve. This will direct the Audi brake fluid into the drain pan.
  • A wrench for the brake bleeder (sizes vary). Don't use an ordinary open-end wrench. A box end wrench or flared fitting style wrench works best.
  • Spray can of automotive penetrating oil.
  • Turkey baster from the wife's kitchen, works to draw the fluid out of the Audi brake fluid reservoir. Don't try to clean and reuse it (just buy the wife a new one).
  • A helper to pump the brake pedal.
  1. Loosen all 4 of the brake caliper bleeders. Most of the time these bleeders seize up. We have tricks for loosening them, but that's another story for another page (coming soon).
  2. Using the turkey baster remove the old brake fluid from the reservoir.
  3. Clean the sediment out of the bottom of the Audi brake fluid reservoir. Add the new Audi brake fluid.
  4. Begin bleeding the brakes. Bleed the brake system starting from the brake caliper farthest away from the brake master cylinder.
    Passenger side rear, drivers side rear, passenger side front, and then the drivers side front.
    A. Have a helper pump the brake pedal about 10 times.
    B. Immediately after pumping, press down on the pedal. Keep it held down, not letting up on the pedal. Note: The helper must keep constant downward pressure on the brake pedal when the bleeder is open. Air will be re-introduced into the Audi brake system if the pedal is let up while the bleeder is open.
    C. While the pedal is held down, use the wrench to loosen the brake bleeder bolt. The old Audi brake fluid and some air will come out. Let the Audi brake fluid flow from the bleeder for about 10 seconds.
    D. While the brake pedal is still down and after about 10 seconds, tighten the brake caliper bleeder bolt.
    E. The helper can now let up on the brake pedal.
    F. Repeat steps A through E until the new blue or amber Audi brake fluid is coming out and no more air bubbles are found.
    G. Per the above sequence, move onto the next Audi brake caliper. Note: Check the level of the Audi brake fluid reservoir, and refill if necessary before going onto the next side.
  5. Verify that all the air is out of the Audi brake system by a simple test. When you've flushed the entire Audi brake system with new Audi brake fluid, take notice of how firm the brake pedal feels. It should feel hard. Wait about 5 minutes and come back and press on the brake pedal once. It should feel just as it did the last time you pressed it. The second pedal depression should feel just as the first. If not, flush your Audi brake fluid again looking for air bubbles. If no air bubbles are found and the pedal is quite soft look for other Audi brake problems.
  6. If you have a manual transmission, don't forget to flush the Audi brake fluid in the clutch circuit. Flushing the Audi brake fluid from the clutch master cylinder and slave cylinder are many times overlooked.

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