There are 1 owner-reported engine complaints for the 2014 Audi RS5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The check engine light illuminated on several occasions indicating the catalyst efficiency is below the threshold. The vehicle has not been repaired and is available for inspection. Audi dealership has inspected the car and said that the catalytic converters are bad and need to be replaced. The car only has 60,000 miles on it and has no other problems with the engine. The dealership says that there is no reason why the converters should be bad based on the vehicle history. the repair is cost prohibitive due to an estimate of $13,500 to replace the catalytic converters. The catalytic converters being bad is increasing the harmful pollutants causing unnecessary excessive tail pipe emissions.
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