Audi A5 P0056: Meaning, Causes + Diagnosis
P0056 is a somewhat common O2 sensor-related OBD2 trouble code. It is a generic code, which means it has the same definition for the Audi A5 as it would any other vehicle. This code is almost always caused by a bad heated oxygen sensor or wiring issue and almost never creates drivability issues. P0056 should … Read more