Question about Mercedes-Benz S-Class
If its a groaning noise and its worse when cold it might be the power steering fluid is low, as the vehicle warms up the level rises and the pump stops sucking air, check the power steering fluid first
Posted on Jan 01, 2013
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Posted on Jan 02, 2017
hi,if you turn the steering wheel in pull position,left or right it's normal to have whining noise,the system is sefl-bleeding if there is air ,ty
Posted on Mar 27, 2009
Testimonial: "Thank you Mr.Domingo! You were correct."
SOURCE: noisy diff
diff bearings on way out jack both rear wheels off the ground --turn them by hand good chance you will pick up which side and how bad but it wont keep going for long the longer you leave it the more parts could get damaged
Posted on Jul 29, 2009
To find out witch it is,pump or rack and pinion,break loose the presure line on the power steering pump with a wench.Start the car and turn the steering wheel back and forth,you may need to loosen the nut on the power steering hose two or three turns to get the fluid to shoot out.It should come out pretty forceful.If it doesn`t,then replace the pump.If it does come out really powerful,replace the rack and pinion.
Posted on Aug 10, 2009
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