
Audi brake discs do not have a specific replacement interval. When the vehicle's mileage reaches 100,000 kilometers, the brake discs should be inspected. If they are damaged or worn to the limit, they should be replaced promptly. The method for replacing brake discs is as follows: 1. Check the wear level of the brake discs. During regular maintenance, brake discs do not necessarily need to be replaced; the decision should be based on actual conditions. If there are grooves deeper than 3MM on the brake discs, they should be replaced. 2. Remove the front wheel tires. To replace the brake discs, the two front wheel tires must be removed, revealing the round discs which are the car's brake discs. 3. Remove the caliper mounting bolts. The brake discs are mounted on the front wheel bearings and secured by the brake caliper. Remove the two 18mm bolts on the brake shaft and take off the caliper. Since the caliper is connected to the oil line, lower it slowly to prevent the oil line from breaking. 4. Remove the old brake discs. The old brake discs are mounted on the front wheel bearings, and rust may form between the bearings and the discs. Use a hammer to tap the back of the brake disc while rotating it to ensure all sides are tapped. After several taps, the old brake discs can be removed. 5. Install the new brake discs. Align the holes on the new brake discs with those on the bearings and gently tap the inside of the discs with a hammer to secure them fully onto the bearings. 6. Reinstall the brake caliper. Position the caliper back in place and tighten the two mounting bolts. Rotate the bearings to check for any abnormal noises.

I've been driving Audis for over a decade, and there's no fixed time for brake disc replacement—it mainly depends on your driving style. If you often drive smoothly on highways with minimal wear, they might last 50,000 to 70,000 kilometers before needing replacement. But if you frequently brake in city traffic jams, the discs wear faster and may require inspection as early as 40,000 kilometers. The key is to regularly measure the thickness. For example, new Audi OEM discs are about 25mm thick when new, and must be replaced once worn down to 12mm or less. Don't wait until you hear noise or feel vibration when braking—that's already very dangerous. Once after an emergency stop, I found fine cracks upon inspection and replaced them immediately. Safety isn't where to cut corners; I recommend having a mechanic check the thickness every two years or during maintenance. When replacing, it's best to change the brake pads at the same time to avoid uneven wear. Also, adopting gentler driving habits and avoiding harsh braking can extend their lifespan.

Car enthusiasts will tell you that replacing Audi brake discs depends on the degree of wear, with thickness measurement being the key. Use calipers to measure the disc surface thickness; new discs are typically 22-30mm, and they should be replaced when reduced to half, with the limit being 10-12mm. Many Audi models have inspection holes—checking whether the wear groove depth exceeds the standard through these holes is also acceptable. Under normal driving conditions, the lifespan ranges from 60,000 to 80,000 kilometers. If you frequently brake hard or drive on mountainous roads, wear accelerates, and issues may arise at around 50,000 kilometers. It's recommended to visually inspect the disc surface every 10,000 kilometers for cracks, grooves, or discoloration to detect and address problems early. Opt for original equipment manufacturer (OEM) parts when replacing discs—though more expensive, they offer longer lifespan and higher efficiency. Don’t forget to check the brake pads, as excessive wear can damage the discs. Maintaining the braking system well enhances driving confidence.

Brakes are a matter of life and death, never take them lightly. Audi brake discs don't have a strict replacement schedule—it depends on wear. Typically, they should be replaced when thickness is halved. Inspect them every 40,000 to 70,000 km, but if you frequently drive in traffic or tow trailers, wear accelerates, requiring more frequent checks. Excessively thin discs can cause brake failure or abnormal noises, increasing accident risks. I always have mechanics measure disc thickness during oil changes—it takes just minutes. Don't hesitate to repair discs with grooves or rust either. Safety first—never delay maintenance to save money, as brake failure carries too high a cost. Develop regular maintenance habits to ensure every brake application is reliable.


