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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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  #26  
Old 01-10-2012, 03:11 AM
EconoBox EconoBox is offline
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Join Date: Aug 2011
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Mein Auto: 2001 530i (E39) 120k
Is there a picture somewhere that can tell me which hose to pull?

Is there a specific sequence to follow, in terms of when the hose is pulled vs. when the car is running?

This sounds like a 3 person job?
One guy watching/diverting the hose, one guy turning the steering, and another guy refilling the reservoir?
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  #27  
Old 01-10-2012, 05:43 AM
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540iman 540iman is offline
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Location: N.W. Indiana
 
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Mein Auto: 2002 540i sport
Making more of this than warranted. Loosen any connector at the pump so gravity will drain pump too. Re-connect. Go back up top and fill reservoir. It will release big bubbles as some air escapes. Re-add P/S fluid as necessary to keep full. Start car with fluid handy. see if reservoir needs more. Turn wheel lock to lock and you will hear P/S pump quiet down and take a little more fluid. turn left to right a dozen times and top off. Drive ten miles or so and then do whole thing over again. Couple times will replace darn near all of it. One man job!
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  #28  
Old 01-10-2012, 03:59 PM
EconoBox EconoBox is offline
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Mein Auto: 2001 530i (E39) 120k
Things are always easy and obvious in hindsight. Not if you've never done it.
Heck, I don't even know where the PS pump even is (yet)

Do you disconnect the PS pump and then start the motor?
Or is it just disconnected to drain the pump and then reconnected?
Is it dangerous to drain the PS pump and have it empty until the new fluid reaches it?
Should you wait to turn the steering wheel for a minute or two, so the new fluid has reached the PS pump?
When the PS pump hose is disconnected, do I run the car and turn the wheel?

Last edited by EconoBox; 01-10-2012 at 04:04 PM.
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  #29  
Old 01-11-2012, 05:53 AM
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540iman 540iman is offline
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Location: N.W. Indiana
 
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Mein Auto: 2002 540i sport
Empty and fill with engine OFF. Don't run with pump dry! Fill slowly and it will get to pump w/o engine running. You can turn key to pos.2 and rotate steering wheel w/o power assist, but if you just fill over about 5 minutes, most air will be gone. Then start and quickly turn wheel lock to lock repeatedly.
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  #30  
Old 01-11-2012, 08:47 AM
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Jason5driver Jason5driver is offline
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Mein Auto: E39 hamster w/ pin-wheel
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  #31  
Old 10-05-2013, 12:29 AM
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bluebee bluebee is online now
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Location: San Jose, California
 
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Mein Auto: 02 BMW 525i M54 automatic
For the record, this came up today:
Quote:
Originally Posted by david831 View Post
Sup mates
My steering fluid its low and I have a super tech power steering with leak stop from walmart and was wondering if its safe to add to my 00 bmw 528i? Have any od you guys used this?
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