C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Steering Noise

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Old 10-10-2012, 04:23 PM
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2K6 C230 Sport
Steering Noise

I have a 2k6 C230 Sport. When I turn the wheel sharp to the left or right the steering is making a humming noise. It doesn't matter if I'm moving or at a stop.

Any ideas what this is?
Old 10-10-2012, 05:18 PM
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C63 AMG
Is your car all stock or do you have any suspension mods or aftermarket wheels?
Old 10-10-2012, 06:51 PM
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2K6 C230 Sport
Originally Posted by Peydidy
Is your car all stock or do you have any suspension mods or aftermarket wheels?

Yes it is 100 percent stock.

I think it might be the power steering pump.
Old 10-10-2012, 10:59 PM
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2004 C240 4matic, 2009 C300 4Matic
Is the wheel turned all the way? replace any parts i.e. axle ?
Old 10-11-2012, 08:41 AM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Check the fluid level. If it only makes a noise at full lock it is usually aerated oil going through the pressure release valves that makes a noise. Fluid level is critical.
Old 10-11-2012, 11:30 AM
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2001 Mercedes c220 CDI
Originally Posted by Glyn M Ruck
Check the fluid level. If it only makes a noise at full lock it is usually aerated oil going through the pressure release valves that makes a noise. Fluid level is critical.

Tell me this, i heard this a few times. Where in a Mercedes c220 CDI 2001 is the steering fluid at? Pics etc would be great.

thanks in advance
Old 10-11-2012, 03:34 PM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
See bottle top right. On diesel I believe you have to pull off the engine cover IIRC.

Attached Thumbnails Steering Noise-c220-cdi.jpg  
Old 10-11-2012, 03:42 PM
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2001 Mercedes c220 CDI
Agh thanks a lot for that... will get the cover off tommarrow and see if i can check it. Thanks again

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