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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 09-20-2014, 01:32 PM   #1
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Join Date: Sep 2014
Location: Glasgow
Posts: 2
My Ride: 2002 e46 330 ci conv
Power steering groan

I have a major groan from power steering when I turn the wheel especially at low speed. Have a 2002 e46 convertible 330 ci.

I think the pump is a lf 30. I have attached a picture of pump in the car. Is this the lf 30? I presume I have to untension the belt to see if there is play in the pump.

I have bought a new reservoir and fluid as it's dirty brown.

If there is no play in the pump and I change fluid do I have to change the hoses?

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Old Yesterday, 09:04 AM   #2
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Join Date: Jul 2008
Location: USA
Posts: 1,332
My Ride: 2001 330Ci
I would first perform a power steering system flush. There's a DIY (or 2) on various BMW sites. Also, perform the flush in conjunction with the changing of the ps reservoir. Change the reservoir and flushing the system should take about an hour if you're handy with tools. I used 4 quarts of dino (non-synthetic) power steering fluid and 2 quarts of Redline D4ATF for the flush. No groans.

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Old Yesterday, 05:16 PM   #3
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Join Date: Sep 2014
Location: Glasgow
Posts: 2
My Ride: 2002 e46 330 ci conv
Cool, I got a reservoir ordered already. Got some D4ATF coming as well. Will change reservoir and do the flush and see how things go. Will keep u posted. Thanks for replying.
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power steering

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