i own a 2011 Audi S4 with 26,000 miles. This week i had two wheels repaired,having scuffed them against the curb. The dealer covered at their expense after some discussion. $150.00. Immediatley, I noticed as I drove away from the dealer my front brakes began to squeak. The next morning I returned to the dealer,and was told that I need new pads calipers, rotors,sensors on front brakes to the tune of $535.00. Up until wheels were repaired i had never had any brake problem or squeaking. i do not ride the brakes, nor I have encountered any squeaking up until now. Is this normal for @011 S4?