W124 power steering noise at full lock?

ShivaYash

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S124 1994 E200 (M111 engine), S123 1983 230TE (M102)
Hello

I've searched the web for more information on this but cannot find anything.

My steering makes a noise, a sort of hum, at full lock, and the revs increase, ever so slightly.

Is this normal? The front wishbones and bearings are new, I replaced them as they had seized.

I realise changing the fluid is a pain but some advice on what colour it should be would be great. I have some Castrol ATF and will top up tomorrow should it be needed.
 

television

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2002 SL500, 216 CL500, all fully loaded
On full lock a relief valve has to open and quitre normaL:D
 
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ShivaYash

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Many thanks - I am just being too fussy I guess, it makes a slight noise at the midpoint too. I'll have it properly checked out at the next service.
 

spock500

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Perhaps change the aux belt if worn. Usually around £8 for an OEM part so not too bad.
 
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ShivaYash

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Will do - many thanks.
 

SimonRaf

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Mine starting to 'whine' quite badly when turning wheel. Happened about a year ago and steering got very heavy but I topped it up and it was grand.

Thought I'd just do the same this time but fluid level is ok :(
 
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ShivaYash

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S124 1994 E200 (M111 engine), S123 1983 230TE (M102)
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That is annoying. Mine makes a slight noise at the mid point. Shall get it checked out.
 

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