power steering whine - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 01-22-2013, 09:05 PM Thread Starter
BenzWorld Junior Member
Date registered: Dec 2011
Vehicle: Ml320. 1999
Location: S
Posts: 7
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power steering whine

1999 ml 320 is there any way to tell if your steering rack is bad? started the car had no steering at all couldnt move it, like it was frozen, turned it off, restarted it had a noise like if the pump was frozen and the belt slipping on it, ( i watched under the hood and the pump was turning the pump, wasnt stuck ) then squeel stops and it turns fine, just whines alot any help?

Last edited by newvisionss; 01-22-2013 at 09:08 PM.
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post #2 of 2 (permalink) Old 01-22-2013, 11:51 PM
Date registered: Jul 2005
Vehicle: 90 300E, 99 ML430, 00 ML320, 05 E500 4matic Wagon
Location: WI
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Check the fluid level in the pump reservoir.

They are known to leak under the reservoir. $20 worth of parts, some MB brand power steering fluid and you should be fine. If it still whines after that then the pump may have gone bad.
Please post in the W163 ML forum. Lots of info about the steering leaks and racks already posted there.
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