Can't turn the key on a 2002 c230 Mercedes?

If you can't turn the key in your 2002 C230 Mercedes, it could be due to several issues. Common causes include a worn or damaged key, a faulty ignition switch, or a locked steering wheel. Try gently turning the steering wheel while turning the key, and ensure the gear shift is in 'Park.' If the problem persists, consider consulting a mechanic for further diagnosis.