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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 01-19-2013, 07:10 AM
darinbrooks darinbrooks is offline
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Power steering hoses leaking at reservoir

I have a 2000 528i (E39). The power steering hoses are leaking at the reservoir. I replaced the hoses. And the reservoir but the hoses are still leaking. I have gradually been tightening the hose clamps but I am worried that if I tighten them any more that I will break the reservoir. Is there something that I am missing here? Is there suppose to be a seal (washer) or something between the hose and the reservoir?
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  #2  
Old 01-19-2013, 08:12 AM
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Fudman Fudman is offline
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The reservoir itself may be compromised. The standard fix for leaking power steering hoses is to cut 1/2" of the end of the hose and then reattach the hose with a new hose clamp. If you replaced the hoses already, I would check the reservoir itself.
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  #3  
Old 01-19-2013, 08:27 AM
Steve530 Steve530 is offline
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There are no seals, just a standard fit with a clamp.

When I replaced my hoses last year, I used clamps that are used for fuel injection hoses. I'm still using the original reservoir. The hoses are not leaking at the reservoir.

You might try tightening the clamps. If you still have the old reservoir and hoses, you may want to experiment with those to see how much you can tighten the clamps without breaking the reservoir.
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  #4  
Old 01-19-2013, 09:51 AM
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Lots of information can be found by typing /power steering F3 into the bestlinks:

- Power steering fluid (1) (2) & power steering fluid flush DIYs (1) (2) (3) (4) & volumes (1) & how to clean the power steering fluid reservoir internal filter (1) (2) & how to replace the cap o-ring (1) (2) & why you want to fix the power steering hose drip onto the alternator (1) (2) (3) & how to debug PSP power steering pump noises (1) (2) (3) or steering rack noises (1) & a nice power steering pump autopsy photo (1) & how to flush cloudy ATF fluid (1) (2) (3) (4) (5) & what PS fluid to use (1) (2-pdf) (3-volume) & what volume is needed to buy (1) & DIYs to replace the power steering hoses (1) (2) (3) (4) (5) & how to debug common BMW power steering issues (1) and noises (1) (2) (3) or steering rack noises (1)

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Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #5  
Old 01-19-2013, 09:48 PM
mike530ia mike530ia is offline
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I did exactly what Bluebee's post shows yesterday, and so far so good.
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  #6  
Old 01-19-2013, 11:05 PM
professorman professorman is online now
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I have a power steering leak which I need to diagnose as well. I just washed my engine last week so that I can find the exact origin of the leak.
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  #7  
Old 01-22-2013, 01:36 PM
Wheat7588 Wheat7588 is online now
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Holy **** i need to do this too. I have a pretty bad leak as well. Good write ups Bluebee!
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  #8  
Old 01-22-2013, 02:23 PM
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Quote:
Originally Posted by Wheat7588 View Post
Good write ups Bluebee!
Not me.

Cn90 did all the DIYs and pictures.

I just re-appropriated them.
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Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #9  
Old 03-15-2013, 02:23 PM
professorman professorman is online now
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I realized that mine had a screw clamp on it. The clamp was loose, and the hose could be rotated on the nozzle. I tightened it up. Do you think that I still need to cut off a 1" piece of the hose?

Quote:
Originally Posted by bluebee View Post
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  #10  
Old 03-15-2013, 04:38 PM
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Quote:
Originally Posted by professorman View Post
Do you think that I still need to cut off a 1" piece of the hose?
I'm not sure 'why' we cut off the end pieces.

Presumably they're damaged, crushed, deformed, etc.

So, if yours isn't, then, i would think, it will be just fine.

However, time will tell ...

What YOU should do, to pay us back, in a sense, is to snap a picture of YOUR repair, and post it, so the next person benefits from your efforts.
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Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #11  
Old 03-15-2013, 06:20 PM
AH673000 AH673000 is offline
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Cutting a 1/2 inch off the existing hose end will eliminate the deformed ( by time ) end and give you factory fresh fit again . The shortened hose should fit on very tight vs the loose fit of the old fit up. It will last you another 10 years.
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  #12  
Old 03-17-2013, 08:40 AM
professorman professorman is online now
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Quote:
Originally Posted by bluebee View Post
What YOU should do, to pay us back, in a sense, is to snap a picture of YOUR repair, and post it, so the next person benefits from your efforts.
True. I will start snapping pictures on repairs that I do. Thanks for the reminder
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  #13  
Old 03-17-2013, 08:44 AM
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doru doru is offline
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The 1/2 cut lasted only about 1 or 2 years on my PS hoses, at which point I had to change them with new ones. They started to sweat ATF, so nothing would hold this off. This method bought me 2 years of extended life of the PS hoses though
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  #14  
Old 03-17-2013, 11:23 AM
cn90 cn90 is online now
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I last did this 7 years ago (May 2006), still good no leak.
What happens is as time goes on, the rubber hardens and the sealing effect is less than perfect.

professorman, don't remove 1 inch, all you need is removing 1/2 inch. This way you bring in "fresh" section of the hose for clamping.
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