One problem related to suspension noise has been reported for the 2013 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Audi A4 based on all problems reported for the 2013 A4.
Rear coil of suspension broke on drivers side, 49800 miles on the car. Independent shop and dealer claim it is common and I find it weird for a part to fail (it snapped) at such low mileage. I was not aware of any hard hits or pot holes that I had hit outside of normal driving. The part was a hazard as it was loose bouncing inside of suspension and made a noise. No senors went off due to the failed part.