There are 2 owner-reported powertrain & transmission complaints for the 2008 Audi A6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TCM is defective will not allow car to shift into gear causing car to stop in traffic with no warnings
2008 AUDI A6 SERIOUS PROBLEMS WITH CVT TRANSMISSION (MULTITRONIC)- VEHICLE SHUDDERS AND DOES VERY ODD MOVEMENTS SETTING AT LOW SPEEDS AND HESITATES WHEN STEPPING ON THE GAS PEDAL. IN ORDER TO MOVE FORWARD HAVE TO STEP DEEP ON THE GAS MEDAL AND HAVE TO DRIVE AT RATHER HIGH VELOCITY IN ORDER TO MOVE FORWARD MAKING IT DANGEROUS WHEN PULLING OUT OF MY HOME DRIVEWAY IN A RESIDENTIAL NEIGHBORHOOD. CAR WILL PERIODICALLY DO JERKING MOVEMENTS AND FEELS DANGEROUS. *TR
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 Apr 25, 2026