2003 Mercedes Benz ML320 Steering trouble

First thing I would do is pop the hood and find where the leak is coming from .Inspect the hoses and the power steering pump it self for leaks .Then you'll have a good idea of what to replace .

[quote="Graytruck"]Steering problem
2003 Mercedes Benz ML320 6 cyl Four Wheel Drive Automatic 84000 miles
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ML's have problems with p/s hoses coming off.There have been many updated hoses.Odds are you p/s hose came off at the radiator.You can check with your local dealer to see if they will replace it for free due to the numerous recalls.