The steering does not turn left or right what should I do?

Hello, I'll need some further clarification if your engine is running and you can't turn the steering wheel at all. Is the steering wheel "locked" - meaning it cannot be moved even a tiny bit? Or, do you turn the wheel and it's super tight and cannot appear to engage the wheels to turn left or right? If you can give me some details, I may be able to help more. You could also check some local qualified shops who would be able to give you advice -- check this link: http://repairpal.com/mercedes-benz-within-10-miles-of-brooklyn-new-york-11237