The P0302 diagnostic code on your 2024 Mercedes-Benz E-Class indicates cylinder 2 is experiencing misfires detected by the engine control module. The W214 E-Class offers multiple powertrains including the M254 2.0L turbo four-cylinder and M256 3.0L turbo inline-6. Understanding your specific configuration is essential for effective diagnosis.
E-Class Powertrain Options
The E300 uses the M254 2.0L turbo producing 255 horsepower with mild hybrid. The E450 features the M256 3.0L turbo inline-6 producing 375 horsepower with 48-volt mild hybrid EQ Boost. Both engines position cylinder 2 second from the timing end as inline configurations.
M254 Four-Cylinder
The turbocharged four-cylinder provides efficient operation with mild hybrid assistance. Direct injection delivers precise fuel management. As a new model, defects rather than wear are more likely causes of misfires.
M256 Inline-6
The six-cylinder provides silky-smooth operation with integrated starter-generator. Direct injection and turbocharging create specific maintenance considerations. The additional cylinders may partially mask misfire symptoms.
Symptom Recognition
The executive sedan displays rough idle, vibration, and hesitation with misfires. Mercedes-Benz's refined driving character is compromised. Check engine light accompanies the condition.
Warranty Coverage
Your 2024 E-Class is fully covered under Mercedes-Benz's warranty. Document symptoms and have dealer diagnosis for proper coverage.