Lexmikeyam

I don't know what's going on? There's a squeaking sound coming every time I turn my steering even slightly either left or right. My steering is normal with no stiffness at all, the power steering fluid is at the normal level. It's sounds like a squeaky door hinge. Maybe something needs to lubed or something. It has been really could here the past couple of days (near or below zero) with new snow, don't know if that plays into it all? Car is out of warranty with around 70k miles 4matic. Oh, before I forget the power steering was flush about a month ago. Anyone else have this issue or any advice on what it could be please chime in... Trying to avoid a costly trip to dealership especially if it's something simple as lubricating a part that I can do myself.

ho1105

My 2010 S550 with 30kmiles started doing the same squeaking noise when steering. seems to happen when it's cold. Took it to dealership but could not find anything wrong. Sucks.

S5502007

Not sure if this is the reason but used to occur on my old vehicle too. Because of the colder weather the material between the steering wheel and the mount would rub and cause the noice to occur. It will go away when the weather/car warms up but it's most likely caused by the materials rubbing together as the steering wheel turns.

Lexmikeyam

^ I think you may be correct... Today the weather is near 50 degrees and no squeaking at all. Just can't stand a sound like that coming from such an expensive car. So I guess we'll see what happens once the temp. drops again? If so, it's all to the dealership.

khf88

The problem is friction, squeaky noise does not need changing part. (If the noise is just like rubbing plastic material under pressure especially close to end part of steering wheel's tour)

The problem is about the steering gear. NO NEED TO BE CHANGED. There is a rod btw the wheel and steering gear and a plastic cover to protect it from dust and water (not the axis).

Open it, you will see a rod under it and an O ring made of plastic surrounding it. GREASE IT. That's it..

I will put the picture for you to see.. The red arrows show the start and end point of plastic cover, and blue one shows the place TO BE OILED.



good luck

AstonLiyanarchi

I just had this issue pop up on my passenger side today and I thought I had a bad ball joint or tie rod end. It squeaks really loud and you even hear it squeak when you getting out of the car or even from the vibration of the door closing. It is colder than usual so I hope this is the issue. I will look for that thing to oil tomorow as well.

alx

The steering shaft boot/seal at the firewall is usually the culprit. Be careful not to tear it when lubing it as it will turn into a 6 hour job to replace it.

AstonLiyanarchi

My noise seems to be coming directly from the passenger wheel. It also squeaks when I push the car up and down so I am thinking it may be somthing else.

alx

I was referring to the op's problem.

RobBanton

What did you find the issue was? My car is doing the same exact thing but on the drivers side.

AstonLiyanarchi

I was told my lower control arm bushing was torn and the noise was from the balljoint. The whole lower control arm needs to be replaced but it's not really an expensive part.