What are the common issues with Audi A6 brakes?

I recently bought a used Audi A6 and I've noticed some issues with the brakes. The pedal feels spongy and there's a strange noise when I apply the brakes. What could be causing this?

It sounds like your brake pads may be worn and in need of replacement. This is a common issue with Audi A6 models and it's important to replace them sooner rather than later to prevent further damage to your brake system.

Another potential issue could be air in your brake lines. Bleeding the brakes can help resolve this issue, but it's important to have a professional technician do this for you to ensure it's done correctly.

Check your brake fluid level and make sure it's at the recommended level. Low fluid can also cause spongy brakes and may indicate a leak in the system.