Grinding noise

2004 MERCEDES BENZ 500SL
53,000 MILES
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DRGEORGIA
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Car makes a grinding noise when the steering wheel is turned
Sep 8, 2016 at 9:47 AM
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CARADIODOC
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That's way too much information to digest. If the front suspension has struts, the upper mounts can make a grinding noise, but you'll only hear that when the car is not moving. The power steering pump will make a buzzing noise if it is low on fluid or worn. Tight ball joints can cause a creaking noise when the steering system is turned, but that isn't real common. The steering shaft goes through a rubber seal on the firewall, and sometimes that boot gets dry and makes a rubbing sound. That can be real annoying, but it doesn't hurt anything. You need to pull the lip of the boot back a little, then spray some lubricant on it.

Your best bet is to have a mechanic listen to the noise and give you an opinion as to the cause.
Sep 8, 2016 at 8:33 PM