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Old 10-12-2013, 01:46 PM   #1
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Power steering issue.


So a couple months back my car started making a noise like an angry whale every time I cut the wheel too hard. I figured it was a power steering leak; easy fix, right?


I can't figure the darn thing out. I trimmed the lines leading to the reservoir and replaced the hose clamps about a month ago. They are still shiny and new looking. There isn't any fluid on the top or sides of the reservoir.

Stranger still, every time I top off the reservoir, the leak seems to worsen only up to a certain point before it stops, or at least slows dramatically. I can't exactly tell.

Can anyone help me out?
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Old 10-12-2013, 02:42 PM   #2
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you trimmed the lines? how did you do that? why didn't you just replace the whole thing? have you checked to see if its leaking from the pump? or if your high pressure power steering hose, which can be seen from under the car is leaking?
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Old 10-12-2013, 02:42 PM   #3
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The leak that worsens after refill, to a certain point, is probably from the vent hole in the power steering res cap.
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Old 10-12-2013, 03:14 PM   #4
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Change the PS reservoir - it has a built in filter that cannot be replaced separately. When you do this flush the entire PS circuit - replacing almost ALL fluid - replace with Redline D4 ATF - this will eliminate the whaling noise.

There are plenty of DIY steering fluid flush threads on here - just search.

When you are refilling follow procedures closely - turning wheel from chock to chock slowly at 10 sec intervals - do this with the front end raised to remove any stress from the rack gears while the fluid may be low. Make sure you follow the instructions in the DIY - you need to get all the air bubbles out.

Last edited by BMW-North; 10-12-2013 at 03:16 PM.
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Old 10-13-2013, 07:49 AM   #5
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Hopefully your PS pump isn't going out. Happened to me a few years back. Made that groaning sound then went out. Followed the DIY and replaced it. Pretty easy. A few months ago it made that groaning sound again. Checked the PS fluid to make sure it wasn't all brown and cloudy like when my first PS pump went out. Fluid was perfectly clear. I used some of the Lucas Oil Power Steering Fluid with Conditioners and it stopped the groaning. Whew! Didnt want to have to replace the PS pump again.

Change the reservoir as suggested above because of the non-serviceable filter. If the groaning doesnt stop, try adding some of that Lucas PS fluid
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fluid, leak, power, reservoir, steering

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