The 2024 Acura MDX continues with the 3.5-liter V6 producing 290 horsepower and the Type S variant featuring the 3.0-liter turbocharged V6 with 355 horsepower. Both engines include cylinder 5 as a legitimate position. A P0305 diagnostic trouble code indicates that cylinder 5 is experiencing misfire events.
P0305 Code Analysis
P0305 translates to "Cylinder 5 Misfire Detected" in OBD-II terminology. The MDX's V6 engine family places cylinder 5 on the rear bank. Misfires at this position affect engine smoothness and performance.
Warranty Considerations
As a 2024 model, your MDX should be under Acura's comprehensive warranty. Component failures causing misfires should be addressed at no cost during the warranty period.
Standard vs Type S Diagnosis
The standard 3.5L uses port injection with proven reliability. The Type S 3.0T uses direct injection and operates under higher boost pressure. Each requires appropriate diagnostic considerations.
Premium Fuel Requirement
Both MDX engines recommend premium fuel. Using lower octane fuel can cause knock-induced misfires, particularly on the turbocharged Type S under boost.