When should the brake fluid of Audi A4L be replaced?

[AriannaFitz]

Audi A4L requires timely replacement of brake fluid after driving 40,000 kilometers or when the brake fluid has been continuously used for more than 2 years. If the owner frequently uses the brakes during daily driving or operates in harsh driving conditions, the replacement interval should be adjusted flexibly. Below are some recommendations for purchasing brake fluid: 1. Purchase products from manufacturers that have long-term partnerships with automobile factories to ensure reliable quality and stable performance. 2. Buy from large, qualified sales outlets to avoid counterfeit or substandard products. It is best to use professional equipment for replacement to ensure thoroughness, avoid residue, and prevent air resistance. 3. In terms of type selection, it is advisable to choose synthetic brake fluid and avoid purchasing outdated alcohol-based brake fluid. 4. Brake fluid has moisture-absorbing properties, which can lead to lower boiling points, contamination, and varying degrees of oxidation and deterioration. Failure to replace it for a long time can corrode the braking system and pose safety hazards. It is recommended that owners replace the brake fluid every two years or 40,000 kilometers. 5. The higher the grade of the brake fluid, the better the safety assurance.

[DeAaliyah]

Attention Audi A4L owners! Don't overlook your brake fluid maintenance. Having driven this car for over three years, I strictly follow the manufacturer's manual which recommends replacement every two years or 40,000 kilometers. During my last service, the technician advised that drivers in humid southern regions should consider earlier replacements because brake fluid is highly hygroscopic - excessive water content can compromise braking performance. If you notice your brake pedal feeling softer or requiring longer travel distance, it might be time for a change. Remember, never compromise quality to save costs - the Audi's precision engineering demands DOT4 standard or higher brake fluid. I always schedule maintenance at authorized dealerships where they perform thorough brake system inspections for complete peace of mind.

[DiRonan]

As an Audi owner who treats my car like my wife, I pay special attention to brake fluid replacement. The official recommendation is to change it every two years, but I have the water content tested during every maintenance check and replace it immediately if it exceeds 3%. I remember once after a long-distance trip, I noticed the braking distance had increased, and upon inspection, the brake fluid had turned yellow. The repair shop owner said prolonged neglect could corrode metal components, and in severe cases, might lead to sudden brake failure! I recommend everyone also check the wear level of their brake pads and discs, as the A4L's braking system requires well-matched conditions. I make it a habit to perform brake maintenance before every winter for peace of mind.

[Damien]

I used to drive an A4L for Didi and specifically consulted an experienced mechanic about brake fluid. He said for regular family cars, it's fine to change it every 30,000 to 40,000 kilometers, but German cars require more frequent changes. It depends on usage: if you often drive on mountain roads or engage in aggressive driving, the brake fluid heats up and degrades faster; for mostly short city trips, you can extend the interval slightly. Pay special attention if the brakes feel harder or make unusual noises, especially squeaking after rain—that's usually a sign it's time for a change. I recommend using OEM brake fluid; it's more expensive but avoids airlock issues from mixing different types. When changing the fluid, make sure to bleed all the air out, otherwise the brakes might feel spongy.