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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 04-17-2014, 09:18 PM   #1
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Join Date: Feb 2013
Location: Virginia
Posts: 14
My Ride: 2003 330Cic Sport Pk
I need to completely replace steering fluid

I just got my new Steering Reservoir from Autohausaz. I am planning to replace the reservoir this Saturday, but I have no idea how to drain the fluid. I am suppose to replace it with ATF Dextron III, cause On the cap on top, it says ATF. I need to flush out the old fluid, sucking it from the reservoir is not going to remove all of it, there is fluid all along the pipes below, & that fluid needs to be drained, but I do not know where is the drain plug!! Please help. I need to drain "ALL" the Steering Fluid not just from the reservoir.
Thanks in advance
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Old 04-17-2014, 09:57 PM   #2
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buy a big jug. Get turkey baster and after you replace the reservoir fill it. Turn on the car and turn the wheel left to right and back till it full locks a few times. turn off the car and use the baster again. Fill and repeat another 3 or 4 times, you should be good.

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Old 04-17-2014, 10:04 PM   #3
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There is no drain plug. do as the above poster states
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Old 04-18-2014, 05:08 AM   #4
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I drained the fluid by removing that hollow banjo bolt (or however its called) from the steering rack. I found the instructions somewhere on this forum. Worked perfectly. If I remember correctly, I only needed two new crush washers for both sides of the bolt.

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Old 04-18-2014, 05:12 AM   #5
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Found one, this one is for a m3 but it was similar for my car:


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Old 04-18-2014, 10:52 AM   #6
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This is what I do on my M3 if you have 2 people...one cracks the return line coming from the pump, one turns the car on and moves the steering wheel side to side. Stop before the reservoir goes empty. Refill and then repeat.

On my 330 which I had owned since new I would just suck out the p/s fluid in the reservoir and replace whenever I changed the oil. I never needed to do a full flush.
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