Mercedes-Benz C250 unable to start despite battery charge and check engine light on on Mercedes-Benz C250

Some Mercedes-Benz C250 owners report experiencing issues with their vehicles not starting, even when the battery is charged and the check engine light is illuminated. Common causes for this problem include a dead battery, which may still allow lights to turn on but lacks sufficient charge to start the engine, as well as alternator problems that can drain the battery. Additionally, a failed starter may prevent the engine from cranking. Owners are advised to check the battery terminals for cleanliness and secure connections, and to use a voltmeter to ensure the battery voltage is above 12.6 volts. They should also inspect fuses and relays related to the starting system and verify the proper operation of the starter motor. Furthermore, malfunctioning ignition coils can contribute to starting difficulties, and if these troubleshooting steps do not resolve the issue, seeking assistance from a professional mechanic or a Mercedes-Benz service center is recommended.