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How often should the brake fluid be replaced in an Audi A5?

3 Answers
VanElliot
07/30/25 1:32am
Audi A5 generally requires brake fluid replacement every 40,000 kilometers or every two years. Additional information is as follows: 1. Reasons for replacing brake fluid: After prolonged use, the rubber cups and pistons in the brake pump may wear out, causing the brake fluid to become contaminated. Therefore, it is best to replace it. 2. Purchasing method: Since the quality of brake fluid is crucial, it is important to be careful when selecting brake fluid. It is recommended to purchase the original brake fluid from authorized repair shops. 3. Replacement principle: When the color of the fluid flowing through the transparent hose changes from dark to light, and matches the color of the new fluid, it indicates that the brake fluid replacement for that wheel is complete. After completion, ensure proper bleeding of the system.
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Gianna
08/15/25 7:16am
I've been driving an Audi A5 for several years. The brake fluid replacement cycle is generally every two years, or more safely, around every 20,000 kilometers. Over time, brake fluid absorbs moisture from the air, causing the boiling point to drop, which is particularly dangerous during emergency braking, potentially leading to system failure or component corrosion. I personally experienced a situation where the brakes felt spongy while driving in the rain, and upon inspection, it turned out the fluid had deteriorated. It's advisable to regularly check the owner's manual; Audi's official recommendation is typically a two-year interval, but if you drive frequently or often in humid conditions, the cycle should be shortened. During each maintenance session, have the technician check the fluid level and perform a color test—don't cut corners, safety comes first. Remember, small maintenance can prevent big problems, especially for the braking system of a performance car like the Audi A5. Ensuring smooth and reliable operation is key. As for the specific procedure, it's best to have it done at a professional shop for peace of mind and precision.
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LaRonan
10/20/25 7:46am
When it comes to Audi A5 brake fluid replacement, I think changing it every two to three years is sufficient. Since the A5 is mainly used for daily commuting, the braking system is crucial. Over time, brake fluid ages and absorbs moisture, affecting braking response, especially in winter or during long-distance driving. My personal habit is to check it every two years. If the fluid level is low or there's an unusual odor, I replace it. Generally, this works out to around 20,000 kilometers based on mileage. The Audi manual clearly states this recommendation. Don't delay too long, or you might face serious consequences like soft brakes. By the way, using DOT4 standard fluid is appropriate during replacement, as it ensures a higher boiling point. Safety is the top priority in daily driving, and taking care of these small details ensures peace of mind. Regularly monitor your vehicle's condition—don't wait until an accident happens to regret it.
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