There are 1 owner-reported powertrain & transmission complaints for the 2006 Audi A6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THERE IS A CONSTANT THUMPING EMANATING FROM THE REAR AXLE AREA OF THE CAR, MOST NOTABLY AT FULL STOP. AUDI SAYS THEY ARE AWARE OF IT BUT DON'T KNOW WHAT TO DO ABOUT IT. ALSO THERE IS A SQUEAL WHEN TURNING SHARPLY AND SLOWLY, BUT AUDI SAYS THEY CANNOT DUPLICATE IT. *JB
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026