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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-04-2013, 10:04 PM
damisco damisco is offline
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Location: Atlanta, GA
 
Join Date: May 2012
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Mein Auto: 99 BMW 540i
99 540i Power steering issues Please help

Hi everyone
I am kind of used to bimmer now cause I went through all these issues with my e46 so now my e39 540i is taking me step by step like my ex e46. I noticed an oil leak around my engine bay and check the power steering fluid cause I have a new VCG the fluid was a little low. Now when I start the bimmer and turn the steering wheel I hear a funny sound as if the the tire is touching the inner fender splash but stops when the engine warms up. Could this likely be the power pressure line or the eye bolt in it or something else.
Has anyone experienced something similar b4,
Any help is appreciated
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  #2  
Old 01-04-2013, 11:03 PM
edjack edjack is offline
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Mein Auto: '97 540i 6 speed
Check the color of the fluid. If it's brown, flush the old stuff out. It may solve the problem.

Here's how:

Get two quarts of the best synthetic ATF from your auto parts store. I used Mobil 1.

Extract as much of the fluid from the reservoir as you can, using a turkey baster.

Optional: remove the reservoir and flush it out with gasoline. I did this, since the filter inside is not removable.

Remove the return hose from the reservoir. It's the forward hose, coming from the radiator, and into the bottom center of the reservoir. Have something ready to plug the reservoir pipe, and catch any residual fluid in the reservoir. I used a rubber cap, designed to cap off vacuum lines, and a couple of shop rags. You'll need a new hose clamp.

BTW, this center clamp allows a leak to develop. Best to replace it anyway.

Fit a length of rubber hose onto, or into, the return hose so that you can route it into a catch can of at least two quart capacity. I used a cut-off bleach bottle, since, being white, it is easier to do the next step, as well being an easy target for the stream of fluid.

Fill the reservoir with new fluid. Have both bottles of ATF open and handy. With one hand on the hose, aiming into the bucket, and the other on the bottle of ATF, have a helper start the engine. Keep pouring ATF into the reservoir until fresh fluid comes out into the bucket. Then shut off the engine, reattach the hose, and top up the reservoir.
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.

Last edited by edjack; 01-04-2013 at 11:06 PM.
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  #3  
Old 01-04-2013, 11:07 PM
edjack edjack is offline
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Double post.
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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  #4  
Old 01-04-2013, 11:56 PM
damisco damisco is offline
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thank you so much Ed, I will check the fluid if it brown as u said I'll do a flashing as u asked. I appreciate your help Ed
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  #5  
Old 02-08-2013, 09:15 PM
damisco damisco is offline
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Hey Ed, I changed the power steering banjo bolt, reservoir and fluid, still making that noise if u turn the power steering wheel at a full stop
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  #6  
Old 02-08-2013, 11:12 PM
epremsoft epremsoft is offline
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Location: United States
 
Join Date: Aug 2012
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Mein Auto: 1998 528i
I had exactly same problem last month and I was going crazy. I fixed it by buying steering fluid and changed the hoses. Since that day this annoying sound is gone.
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  #7  
Old 02-08-2013, 11:16 PM
damisco damisco is offline
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Which hoses have you changed the suction hose, the return hose or the power pressure line hose
Thanks
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  #8  
Old 02-08-2013, 11:18 PM
epremsoft epremsoft is offline
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Mein Auto: 1998 528i
I'm not sure which ones because my mechanic changed them for me, but one of them was return hose (because I had leak on that) for sure. I hope that helps you.

Last edited by epremsoft; 02-08-2013 at 11:20 PM.
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  #9  
Old 02-08-2013, 11:30 PM
damisco damisco is offline
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alright I should change all the hoses since I am doing myself, I have done all the hoses and power steering pump on my ex 330i e46 so I will do the hoses first to see where it goes.
I appreciated it
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  #10  
Old 02-08-2013, 11:36 PM
epremsoft epremsoft is offline
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But first try just to fill up your reservoir with steering fluid. We did that and sound was gone but after couple of days it was less than half. And than we start looking for leaks.
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  #11  
Old 02-08-2013, 11:56 PM
damisco damisco is offline
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Location: Atlanta, GA
 
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I got u mine was leaking from the upper side that's right I changed the reservoir and the the banjo bolt, after I put a new fluid but I have to drive for while so I can match up the fluid so I will wait a little bit to top off ans see what comes up I car car is parked for a CCV and all related gasket work this week I should be done by Tuesday and will top of the power steering fluid to know the exact issue, I will keep u inform though, thanks a lot
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  #12  
Old 02-09-2013, 12:00 AM
epremsoft epremsoft is offline
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Good luck with it
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  #13  
Old 02-09-2013, 12:05 AM
damisco damisco is offline
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Thanks a lot
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