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-   -   Power steering just suddenly (https://xoutpost.com/bmw-sav-forums/x3-e83-forum/112078-power-steering-just-suddenly.html)

getty150 06-28-2020 09:34 AM

Power steering just suddenly
 
One day suddenly the power steering is "gone" I mean the 04 never gave me problems just came back from a day long trip. Cranked her up in the middle of the day yesterday and began to steer out of the garage and...wheel bearly turns...last week I checked the atf fluid and it was clean...heck I changed that fluid maybe a year ago! What gives? On quick inspection I couldn't see if the pimp was spinning.
The belt is basically new put it on at the start of the year.
Could the pump just have given up the ghost? No warning signs?
It doesn't squil...
Have had the car not a good 2 years...rides nice just hit 200k at the middle of the month...maybe it's the matter of simply changing the pump?
Your thoughts?

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AceEngineer 06-28-2020 12:09 PM

Wrong fluid?
 
Why would you check the ATF if your power steering is gone. Check the power steering fluid not the transmission fluid. BMW uses very special power steering fluid (CF-11S hydraulic fluid). If you have been substituting transmission fluid in the power steering reservoir that will explain your failure.

AceEngineer :cool:

getty150 06-28-2020 02:29 PM

The early e83s use ATF for PS fluid.[emoji41]

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AceEngineer 06-29-2020 08:07 AM

Bad Info
 
Don't know where you got your info, but according to the online BMW TIS (Technical Information System) it calls for CF-11S for even the earliest E83's. ATF is not a suitable substitute.

AceEngineer :cool:

getty150 06-29-2020 08:29 AM

Quote:

Originally Posted by AceEngineer (Post 1186790)
Don't know where you got your info, but according to the online BMW TIS (Technical Information System) it calls for CF-11S for even the earliest E83's. ATF is not a suitable substitute.



AceEngineer :cool:

Well let's stop right here. If you are convinced with what applies to "my" car then ok.
I now know if I can rely on your comments for the future...or not.

For those readers seeking a conclusion to the problem (and not negative discourse)

the pump simply died...how can you tell?. drain the ATF (in this case) from the reservoir, shine light into reservoir, if you should see movement from the ATF (and you should) then pump is working...
No circulation?...pump is dead. Replacement is in order.
However, there are two versions sold make sure you order the correct version on the car. If not, you'll have to order and replace the existing pressure lines to fit the upgraded pump.

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AceEngineer 06-29-2020 03:51 PM

My apologies
 
I don't mean to come off as a know it all. I just was suggesting a real reason for your power steering failure. Perhaps I am wrong. Maybe you has an odd-ball unit. Please feel free to check for the correct fluid yourself at: https://www.newtis.info/tisv2/a/en/
Getty150, you can put your VIN in and know exactly what to use. I only checked a generic pre LCI gas engined E83.

AceEngineer :cool:

getty150 06-29-2020 09:55 PM

Quote:

Originally Posted by AceEngineer (Post 1186812)
I don't mean to come off as a know it all. I just was suggesting a real reason for your power steering failure. Perhaps I am wrong. Maybe you has an odd-ball unit. Please feel free to check for the correct fluid yourself at: https://www.newtis.info/tisv2/a/en/

Getty150, you can put your VIN in and know exactly what to use. I only checked a generic pre LCI gas engined E83.



AceEngineer :cool:

Thanks for that.

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80stech 06-29-2020 10:04 PM

Is this thread about finding a problem, or some kind of test, or is it instructional ???

getty150 06-29-2020 10:09 PM

Quote:

Originally Posted by 80stech (Post 1186858)
Is this thread about finding a problem, or some kind of test, or is it instructional ???

What ever it is let's just bring it to a halt now.

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getty150 07-05-2020 12:43 AM

Replaced PS pump

Not a bad job, but not the easiest. Replaced the ps pump the other day...04 never gives me any problems but it did just hit 200k in the last 30 days.

No codes, no leaks, no whining....just NO Steering.

Pretty straight forward job...had to widen the brace a tad bit after about an hour of agonizing over the fit,,,but hey another $300 in my pocket.

Ran into a problem with spacing even after removal of the air snorkel (not the air box) and fan.

Had to remove the tention pulley just to get to, to remove one of the two bolt for the ps pump brace.

Most of the work was done from the top. Used the same ring clip for the hose. Ordered a reservoir just to reward 04 for hitting 200k.

Used a lot of cardboard for spillage probably lost about 3/4 of a bottle of ATF .
A couple of days ago I replace the power steering reservoir.


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o2bad455 12-15-2021 03:03 PM

Quote:

Originally Posted by getty150 (Post 1187137)
No codes, no leaks, no whining....just NO Steering.

SYMPTOMS: We just encountered the same loss of steering assist without any warnings or other symptoms on our '08 E83 X3 N52 M-Sport (USA Spec). The power steering (PS) simply stopped assisting after stopping for gas on the way into a congested city, which almost made us overshoot an exit ramp and then made tight curb-side parking unexpectedly challenging. There is no noticeable fluid movement in the reservoir with the engine running, but the belt's good, pulley's not wobbling, no noises or PS leaks.

CONTROLLER?: I thought it might be a steering controller fuse, but fuses 66 and 69 both seem to be fine. Is there any possibility that this could be a controller issue? If I understand correctly, although it seems not to be well documented, the steering controller supposedly actively adjusts the amount of assist. Anyone know if it adjusts to zero assist under any circumstances, even if just in a failure mode? In the meantime, I'll try to get a scan.

RESERVOIR?: I just read that the reservoir has a non-removable filter. If it got plugged somehow, could that cause the issue?

PUMP?: If not the controller or reservoir filter, I guess we'll be ordering a new PS pump. But I've truly never had a hydraulic PS failure anything like this before. It makes me wonder: Are these PS pumps' impellers made of plastic? If so, is there a metal impeller version or upgrade available?

FLUID?: I will say that the fluid had been right at the min mark when cold and about halfway to max mark when hot since we got the X3 a couple of years ago. When on a long trip this past summer, I decided to top it off to full when hot using steering fluid from a small yellow bottle with green label that specifically said it was for BMW. I'll see if I can find the still mostly-full bottle... But perhaps I should have left well-enough alone! After pump replacement, exactly which readily available fluids can we or can we not use?

RocketyMan 12-15-2021 04:04 PM

Quote:

Originally Posted by o2bad455 (Post 1214413)
SYMPTOMS: We just encountered the same loss of steering assist without any warnings or other symptoms on our '08 E83 X3 N52 M-Sport (USA Spec). The power steering (PS) simply stopped assisting after stopping for gas on the way into a congested city, which almost made us overshoot an exit ramp and then made tight curb-side parking unexpectedly challenging. There is no noticeable fluid movement in the reservoir with the engine running, but the belt's good, pulley's not wobbling, no noises or PS leaks.

CONTROLLER?: I thought it might be a steering controller fuse, but fuses 66 and 69 both seem to be fine. Is there any possibility that this could be a controller issue? If I understand correctly, although it seems not to be well documented, the steering controller supposedly actively adjusts the amount of assist. Anyone know if it adjusts to zero assist under any circumstances, even if just in a failure mode? In the meantime, I'll try to get a scan.

RESERVOIR?: I just read that the reservoir has a non-removable filter. If it got plugged somehow, could that cause the issue?

PUMP?: If not the controller or reservoir filter, I guess we'll be ordering a new PS pump. But I've truly never had a hydraulic PS failure anything like this before. It makes me wonder: Are these PS pumps' impellers made of plastic? If so, is there a metal impeller version or upgrade available?

FLUID?: I will say that the fluid had been right at the min mark when cold and about halfway to max mark when hot since we got the X3 a couple of years ago. When on a long trip this past summer, I decided to top it off to full when hot using steering fluid from a small yellow bottle with green label that specifically said it was for BMW. I'll see if I can find the still mostly-full bottle... But perhaps I should have left well-enough alone! After pump replacement, exactly which readily available fluids can we or can we not use?

I would start a new thread and then just reference this one as it's over a year old. Perhaps those members aren't on the forum as much...


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