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Discussion Starter #1
Picture this.

6am. Dark outside. Groggy and cranky en route to Orlando, a 4 hour drive.

Stop at gas station to add oil. Due to being groggy and cranky, not wearing glasses, I pour oil into ATF tank. YIKES! Once realized it, stuffed it with paper towels to absorb it out.
Car didnt explode, so kept on trip. Cut to 8 months later, sterring sucks, makes groaning sounds when turning, hard as heck to turn n tight situations.

Take it to trusted BMW specialist. Says I polluted the rack/pinion and pump, both contaminated, need replace both. May be able to have R/P overhauled, saing some money, but laboe is $430 plus alignment $60, plus overhaul (price uknown), plus pump.
Im so mad at myself I could spit. (but that would probably end up in the ATF also and cost another grand :cry:

He said he couldnt be sure if the problem was either the pump, or R/P, and if I only changed one, (say pump) then it could be contaminated by the R/P cus it was still contaminated.

This is all chinese to me, so Id appreciate any info, advice, lecture or whateva on this subject. Many thanks!:thumbup:
 

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catso
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3,161 Posts
Picture this.

6am. Dark outside. Groggy and cranky en route to Orlando, a 4 hour drive.

Stop at gas station to add oil. Due to being groggy and cranky, not wearing glasses, I pour oil into ATF tank. YIKES! Once realized it, stuffed it with paper towels to absorb it out.
Car didnt explode, so kept on trip. Cut to 8 months later, sterring sucks, makes groaning sounds when turning, hard as heck to turn n tight situations.

Take it to trusted BMW specialist. Says I polluted the rack/pinion and pump, both contaminated, need replace both. May be able to have R/P overhauled, saing some money, but laboe is $430 plus alignment $60, plus overhaul (price uknown), plus pump.
Im so mad at myself I could spit. (but that would probably end up in the ATF also and cost another grand :cry:

He said he couldnt be sure if the problem was either the pump, or R/P, and if I only changed one, (say pump) then it could be contaminated by the R/P cus it was still contaminated.

This is all chinese to me, so Id appreciate any info, advice, lecture or whateva on this subject. Many thanks!:thumbup:
Do a flush or two or three on the PS system and see what happens. At $5 a quart, it won't cost much. Maybe you'll get lucky. :dunno:
 

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Discussion Starter #3
I did a mini flush 3 weeks ago, following a DIY I found on this great site.

Syphoned, filled with new, turn sterring wheel vigorously left to right several times. Did this twice, but only using about 1/2 a bottle in total. I think I will take your advice and do 3 bottles, and your right, could work? :dunno:

Anyone else have any thoughts or experience with this?
 

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Crank the wheel all the way in one direction, siphon the well, fill with new, crank all the way over to the other side, siphon and fill. Do this until you went through all the new ATF then see what happens. When you crank all the way to one side you get the most fluid you can out of one side of the piston. Reversing does the same thing to the othe side of the piston.

Good luck. Let us know if the flushing works.
 

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catso
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LUK LF-30 is the pump I need. What is ya'll's opinion on buying a overhaul pump, vs new...and on Ebay?
Car-parts.com is a comprehensive list of boneyards from all across the country. Check it out before you buy on Ebay,
 

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Discussion Starter #7
Crank the wheel all the way in one direction, siphon the well, fill with new, crank all the way over to the other side, siphon and fill. Do this until you went through all the new ATF then see what happens. When you crank all the way to one side you get the most fluid you can out of one side of the piston. Reversing does the same thing to the othe side of the piston.

Good luck. Let us know if the flushing works.
Very interesting procedure. Was not aware of it. Will def give it a try and report my results. Thank you!:thumbup:
 

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By doing the above procedure enough you could get all the oil out of the system which should keep you from contaminating the new pump if you do the pump first(alone).
Do replace the reservoir as it contains a filter, It would be a small cost and small amount of labor to insure your system is done right.
 

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ROLL TIDE!
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I wouldn't pay $430 for a rack and pinion job, it isn't that hard. Also, I'd replace the pump with the above suggestions of flushing. Quite honestly, with the P/S pump being a known failure on these cars, I wouldn't be convinced that the oil had anything to do with it.
 

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Discussion Starter #10
I concure with all sugestions , thank you. I happen to work for an automotive training school and asked one of our techs, who is BMW trained and he said same as you all. In fact, Im taking it to him tomorrow to do the flush and new pump. Since I need to get it locally, any suggestions as to which auto parts store is is best; good warranty, fair priced. Ive been told Napa, or Advance for 2.

Thanks again
 

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Rambling Wreck
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2,073 Posts
Since I need to get it locally, any suggestions as to which auto parts store is is best; good warranty, fair priced. Ive been told Napa, or Advance for 2.
LUK is the original equipment manufacturer of power steering pumps. If you can't get a LUK locally, consider ordering it. Many vendors offer free or reduced cost express shipping deals depending on the amount you order, and the pump, hoses and reservoir should qualify for a deal of some kind.

Someone posted a comparison of the third-party brands here recently, but my personal preference is for OE suppliers.
 

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ROLL TIDE!
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I concure with all sugestions , thank you. I happen to work for an automotive training school and asked one of our techs, who is BMW trained and he said same as you all. In fact, Im taking it to him tomorrow to do the flush and new pump. Since I need to get it locally, any suggestions as to which auto parts store is is best; good warranty, fair priced. Ive been told Napa, or Advance for 2.

Thanks again
I found my replacement LUK 20 at Advance for $178
 

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catso
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3,161 Posts
I concure with all sugestions , thank you. I happen to work for an automotive training school and asked one of our techs, who is BMW trained and he said same as you all. In fact, Im taking it to him tomorrow to do the flush and new pump. Since I need to get it locally, any suggestions as to which auto parts store is is best; good warranty, fair priced. Ive been told Napa, or Advance for 2.

Thanks again
LUK-30, Junkyard, $50 shipped. :thumbup:
 

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Discussion Starter #14
LUK-30, Junkyard, $50 shipped. :thumbup:
Is it Sanford & Son junk yard? :rofl: Great price. Where do I find this place, online?

I would prefer my mechanic do the flush first, as I will prob order the LUK online if I cannot find it here (Miami).

Any idea what a fair price to pay for him to flush it, replace ATF thru the lines only?
(Pump labor seperate)
 

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ROLL TIDE!
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Any idea what a fair price to pay for him to flush it, replace ATF thru the lines only?
(Pump labor seperate)
Why would you pay someone to do that for you? all you need is a turkey baster (one you won't use in the kitchen again) about 2 qts of new ATF fluid and 10 minutes. DONE!
 

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catso
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3,161 Posts
Is it Sanford & Son junk yard? :rofl: Great price. Where do I find this place, online?
I would prefer my mechanic do the flush first, as I will prob order the LUK online if I cannot find it here (Miami).

Any idea what a fair price to pay for him to flush it, replace ATF thru the lines only?
(Pump labor seperate)
Car-parts.com lists hundreds of junkyards all over the U.S. I bought mine at Mac's Auto Parts near Orlando.
 
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