M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Whirring Noise When Acceleration

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Old Apr 17, 2015 | 12:17 AM
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ML430
Exclamation Whirring Noise When Acceleration

Hey,

I'm relatively new to this Mercedes game. I have a ML430 that just had the power steering taken care of, but the car is still making this whirring noise when accelerating, and only when accelerating. I'm worried it may be a bigger issue, but I'm not sure. Anyone have any ideas about what it could be?

Thanks for the help.
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Old Apr 17, 2015 | 07:48 AM
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2002 ML 320 & 2006 ML500
What does "I just had the power steering taken care of" mean?

If you don't tell us what was done and what was replaced and who did it and why it was done, it will all be a guessing game on our part.
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Old Apr 17, 2015 | 09:35 AM
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Well as far as I know, the person who owned the car previously had taken it in to have something checked because it was making a strange noise when turning the wheel. There was a leak in the power steering somewhere (not sure where), and they replaced a few parts, and topped off the power steering fluid. Aside from that, I'm not sure what it was. Just know it was fixed. The tach is not working either. It is sitting around 3800 RPM, on and off. I revved the engine while stopped, and the car was still making the whirring noise.
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Old Apr 18, 2015 | 05:54 AM
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Please UPDATE YOUR PROFILE in USER CP.
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