When your 2022 Volkswagen Passat displays the P0304 code, the powertrain control module has detected recurring misfires in cylinder 4. As the final model year for the US-market Passat, understanding the 2.0L TSI engine enables targeted diagnosis for this midsize sedan.
Understanding P0304 in the 2022 Passat
The 2022 Passat features the 2.0L TSI turbocharged four-cylinder. This inline-four positions cylinder 4 at the rear of the engine. VW's sophisticated direct injection and turbocharging create specific maintenance requirements for misfire diagnosis.
Final Year Production Considerations
As the final US-market Passat, the 2022 model benefits from mature production quality. Parts and service remain widely available since the 2.0L TSI continues in other VW models. Standard TSI maintenance applies.
Diagnostic Process
Use VW-compatible diagnostics for comprehensive data. Locate cylinder 4 at the rear of the engine. Test ignition coil output and spark plug condition. Consider carbon accumulation for vehicles showing related symptoms.
Repair Implementation
Install VW-approved spark plugs for the 2.0L TSI. Replace ignition coils showing degraded output. Address carbon buildup if indicated. Quality repairs maintain proper operation.