My 2003 A6, 40k miles, left front brake corner is making a lot of noise when I drive on rough roads. I get a metal sounding rattle. There is also an audibleclick from that locaton when I engage the the brake. The dealer claimed to have fixed it during my 40k service but it quickly came back. I'd like to know a little more about what is causing itbefore I take it back in.
Thanks.
Jim

 

The brake pads are loose. See if you can get new pads for all 4 wheels
before 50K mi. ,under warranty.