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The Ultimate Übermensch
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Discussion Starter · #1 ·
I wanted to document my power steering pump installation so that anyone who needs to replace one might consider doing it themselves rather than shelling out a lot of money to have a band of orangutans do it. This job can be done in under 2 hours. On a scale of 1 - 10, I rate it a 3, my skill level being a novice. I drove the car up onto my Rhino Ramps so I could get underneath the car more easily. Some prefer using jack stands.

Parts Needed:

Power Steering Pump LUK LF-20 - 32 41 6 760 036
Tischer $404.80
1 Quart Mobil 1 Synthetic ATF or ATF of your preference. Don't use "power steering fluid". BMW advises using ATF.
1 pint Bass Ale draft, gently chilled.



Empty Fluid Reservoir:



Use a turkey baster or some other syringe type tool. Don't worry if you don't get every drop . . . it will come out in the end!

Remove these:





The fan shroud above looks intimidating, but it isn't. Remove the electrical connectors first, then unscrew (#5) using a T20 torx bit. Next, pull the pin out (#4). Now you're ready to lift shroud straight up and out of the way. This step is probably optional but I like having the extra room.

Loosen the 3 pulley bolts that attach the pulley to the pump:

See first illustration, bolt number 5. 13mm It's a good idea to loosen these up before removing the serpentine belt. Follow Paul180's directions here to remove belt. http://www.bmw330ci.net/maintenance/belts.php Follow this diagram when replacing the belt:



Remove splash guard under the engine bay:



This picture is for a 7 series but I wanted to post an image for reference.

Now you're ready to get to the pump. First remove the rubber hose from the pump. This is where the fluid will gush so be ready to catch it using a plastic container of some type. Next remove the high-pressure line using a 17mm combination wrench. I think it's 17mm. If the line cannot be separated from the pump at this time, don't panic. Now you're ready to remove the pump. Remove bolt #'s 2, 3 and 6 (referenced above) using a 13mm socket. If the high-pressure line is still attached, gently wiggle it free from the pump.

Now you're ready to install the new pump. Complete all steps above going backwards this time. Fill reservoir with fluid to the max line. Start car, gently reverse off of the ramps. Now turn steering wheel from lock to lock several times. If steering wheel doesn't want to move, don't panic like I did . . ., :yikes: Rev and hold up to 2500 rpm and gently turn wheel left and right. This builds up the pressure needed to open up the valve inside the pump. Now drive around the neighborhood and come back, check that level is okay.

Here are some helpful footnotes:

When reattaching the high-pressure line the bolt doesn't screw in all the way. It wasn't designed for that so when tightening it to the pump, and you feel it getting snug, that's the ticket! Do not over tighten.

I don't use torque specs. Common sense will give you a feeling when it's tight enough.

It isn't necessary to remove front sway bar as Bentley recommends.

Finally, . . .

 

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The Ultimate Übermensch
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Discussion Starter · #3 ·

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Did I pay a fortune for the install, do you mean?
No....with all due respect, I watched my mechanic (and his quite competent first-hand man) do the entire job in less than an hour.....
they charged me $95. :eek: I even let them keep the core. Of course, I wouldn't recommend using just anyone for this kind of install.

I gave them the pump of course, and the Mobil 1 ATF. I took a chance with AboveAll after a lot of research...they have a VERY small selection of parts and even less sales staff. I ended up dealing with the owner of the company since he was the only one who would return my calls: http://www.prlog.org/10054433-bmw-enthusiasts-can-now-get-bmw-auto-parts-advice-from-top-racing-car-chief.html

It was a bit of a gamble, but so far it has paid off. Also, my understanding is that the remanufacturing of these pumps doesn't work very well long-term, so I wasn't willing to settle for one of those, either. :)
 

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The Ultimate Übermensch
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Discussion Starter · #5 ·
You got a steal! Install didn't cost as much as I thought. I still have the pump. I wonder if I can get cash for it. In some cases I could return it in exchange for the core charge but in this case there wasn't one. Anybody have ideas?
 

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You got a steal! Install didn't cost as much as I thought. I still have the pump. I wonder if I can get cash for it. In some cases I could return it in exchange for the core charge but in this case there wasn't one. Anybody have ideas?
If you're referring to the old steering pump that you removed, without having someone remanufacture it,
I think the most you'd be able to get for it would be:

:rofl:
 

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Great DIY Dave! Though I'll probably let you do it if something happens to mine :rofl:
 

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The Ultimate Übermensch
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Discussion Starter · #12 ·
Great DIY Dave! Though I'll probably let you do it if something happens to mine :rofl:
Thanks Sean, appreciate the comment. Anytime. We can fix that!

Thanks Dave, hope I never need it but it's nice knowing it's here if I do. Yes, it needs to be plugged into the wiki.
You're welcome. I hope you'll never need it either! I'm not familiar with posting into the wiki. Can somebody help?
 

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The Ultimate Übermensch
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Discussion Starter · #14 ·
I'd probably have somebody's mail box dangling from my door handle not to mention some lady's clothes line. :yikes:
 

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well the ditch will slow you down alot and then you have the trees that will most likely stop you before you hit the clothesline
 

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The Ultimate Übermensch
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Discussion Starter · #16 ·
I don't know what's gotten into me . . . Never been this way before, never mechanical but maybe my age has something to do with it. I think the fun part of tinkering for me is that it makes me focus on something for longer than a few seconds. As you all know I replaced my pump a couple weekends ago and it functions very well. I decided to take my old one apart to learn how things work. Well, I think I found the problem. Let's have some confirmation from some of you. My conclusion is that the piece on the far right of the photo is the culprit. This plate is partially responsible for keeping the shaft centered properly while spinning. When I opened this I observed that the shaft was definitely not centered. Look closely at the 2nd photo . . . the hole in the middle is not a circle anymore, my assumption being it's supposed to be a circle. Sooooooooooooo, do any of you know where I can get this part? I know it's a shot in the dark. Maybe someone has a pump for parts? Even if I can't pull this off I have the pleasure of taking it apart and learning something new. This has been a pleasure so far.
 

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Great post

Thanks for the great post. last weekend i printed your post and changed my PS Pump on my 2002 325I. less than 2hrs to do the job and i even had to run to the parts store for a clamp....worked perfect!!! Thanks again:thumbup:
 
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