I have a slight howl that sounds like low fluid on my car what could that be on 2005 Mercedes-Benz S430 4MATIC

When I start it up it is louder than it is after running it for a while

by in Sayreville, NJ on May 29, 2013
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2 answers
ANSWER by , May 29, 2013
have all fluid levels ck or poss p/s rack issue
ANSWER by , May 30, 2013
sounds like a possible power steering issue