mdaviscda

Needs some help, my steering makes a whining noise when i turn left. can't seem to figure out what the problem is. This is what i have done to try to fix the problem. changed the ball joints on the left and right side, cheated the power steering fluid. Still makes the same noise but it only does it when turning left.
Any advice would be greatly appreciated. Also had the mercedes guys look at it when I had the ac condenser replaced. They could not find anything. PLEASE HELP drives me crazy, very annoying, loud and embarrassing.

Sulaco

isn't there a fluid filter inside the pump? that or the pump itself?

mdaviscda

Thanks for the info, will check it out tomorrow.

DRBC43AMG

I have never seen one inside our outside, but a flush and change of the power steering oil would not be a bad idea. Don't know if that will eliminate the noise, but who knows without trying....

FrenchBenz

I had pretty much the same issue as you. Changing the wheels bearing did the trick and remove the noise.

Sulaco

I assume this is also true of our cars? My PS pump looks awfully similar to my older ones.

DRBC43AMG

Mine doesn't look at all like the one in the video. It's a rectangular reservoir with a black cap on top. Also apparently this maintenance tip is for older MB's up to 1995.

cm60k

we don't have filter in our steering fluid isn't..?,

I put Inline Magnafilter in my previous C43, perfect with no issues...



ZAYED,,

DRBC43AMG

Good idea Zayed. I have such a filter hanging around in the workshop.

KJI3jflarryfe93

i've seen these round power steering metal filters on several webshops, but they don't fit our cars?
how would you put this in the tiny fluid box?

cm60k

This filter for the old style metal round tank, don't see if necessary to put filter inside the tank...!



ZAYED,,

KJI3jflarryfe93

why does most webshops list this round metal filter for C43?
i once bought this filter and had to return it when i found out it was not for my car
filter is it made for early 90's pre facelift w202 cars with older style power steering?

benzslo

Pretty hard for anyone here to help diag a noise if we can't hear it.

cm60k

+1,

I think it's part of advertise, most of shops thought this filter is continuous part till 2006...?!!?

ZAYED,,

DRBC43AMG

I shot a quick photo a moment ago...

mdaviscda

I know it's hard to diagnose, but i was hoping some one had this issue. Thanks for all the suggestion, I will keep everyone posted when i find out the problem.

benzslo

There is a screen filter inside the resevoir. You have to replace the resevoir to replace it, the whole resevoir is not that expensive. This can cause noises, I've seen the screens break away. If fluid is rushing around in your resevoir with the engine on, your screen is busted.
I can't say this is his noise. If the noise changes while he's revving it up, it's likely this or the pump. If it doesn't.... well it's impossible to diag a noise without hearing it. A sound clip would be helpful, record on phone, post to youtube.

cm60k

Good to know Benzslo, i didn't know about that,

If we got a new tank, is MB screwed or glued that screen in it...??

ZAYED,,

mdaviscda

Thanks guys for all the help, the noise only happen when i'm making a left turn, does not happen when turning right. no noise when idle or just by turning the when left or right just when driving.

benzslo

It is molded in to the plastic housing.

FrenchBenz

I'm going to say it again, but this sounds like a bad wheel bearing... Not sure if you've replaced those already but if not you should check it out. Just my 0.02 cents

Ausmbtech

With the engine running for at least 2-3 mins take the P/S cap off and have a look at the fluid inside. If it appears to be swirling around rather than just sitting there then the baffle inside the tank if broken and you'll need to replace the tank. This will cause a lot of P/S pump whining that comes and goes. it's easy to check and cheap to fix. This is a good place to start before looking further.