The 2024 Audi A6 continues offering the 3.0-liter turbocharged V6 engine with 48-volt mild-hybrid technology in the 55 TFSI variant. A P0305 diagnostic trouble code indicates that cylinder 5 of this six-cylinder engine is experiencing misfire events.
P0305 Code Analysis
P0305 translates to "Cylinder 5 Misfire Detected" in OBD-II terminology. On V6-equipped A6 models, cylinder 5 is a legitimate position. The 45 TFSI 4-cylinder variant would make P0305 anomalous.
Engine Variant Verification
Before pursuing cylinder 5 diagnosis, verify you have the 55 TFSI V6. The 45 TFSI uses a 4-cylinder engine where cylinder 5 doesn't exist. Model badges and documentation confirm your specific powertrain.
Warranty Coverage
As a 2024 model, component failures should be covered under Audi's comprehensive warranty. Document symptoms for dealer evaluation.
Common Causes
V6 cylinder 5 misfires typically result from ignition component failure, fuel injector issues, or carbon buildup from direct injection.