A P0302 code on your 2022 Mercedes-Benz C-Class indicates the engine control module has detected misfires in cylinder 2. The W206 C-Class launched in 2022 features the M254 2.0L turbocharged four-cylinder with mild hybrid technology. This modern powertrain requires specific diagnostic approaches for misfire resolution.
W206 Platform Introduction
The 2022 C-Class represents a complete redesign with the new M254 engine. The turbocharged four-cylinder produces 255 horsepower with 48-volt mild hybrid assistance. Cylinder 2 is positioned second from the timing chain end. Direct injection provides efficient combustion with associated maintenance considerations.
Common Misfire Causes
Direct injection carbon buildup can begin developing on intake valves. Ignition coil failure affects spark delivery. Spark plug wear reduces ignition energy under boost. High-pressure fuel system issues can cause cylinder-specific misfires. Turbo boost irregularities affect combustion consistency.
Symptom Recognition
The compact sedan displays rough idle, vibration, and hesitation with misfires. Four-cylinder engines show pronounced symptoms when one cylinder misfires. The refined Mercedes-Benz driving experience suffers. Check engine light accompanies the condition.
Diagnostic and Repair Approach
Use Mercedes-Benz compatible diagnostic equipment. Inspect ignition components on cylinder 2. Test fuel system operation. Verify boost pressure. Given the newer model year, warranty coverage should apply to defect-related issues.