How often should the brake fluid be changed in an Audi A6?

I've heard that brake fluid should be changed regularly to maintain proper braking performance, but I'm not sure how often it needs to be done specifically for an Audi A6. Can anyone provide some guidance?

Audi recommends changing the brake fluid every 2 years or 20,000 miles, whichever comes first. This ensures that the brake system continues to function properly and avoids potential expensive repairs down the road.