Audi Q5 Fault Codes List May 2026

Listen to the codes. They speak German with an attitude.

The most heartbreaking? – Catalyst System Efficiency Below Threshold . audi q5 fault codes list

The first time Klaus, my 2014 Audi Q5 2.0T, coughed up a fault code, I didn’t even know it. He did it silently, in the garage, while I slept. The next morning, the check engine light glowed amber—not angry, just… disappointed. Listen to the codes