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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > CHF-11S or ATF Dexron?



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      06-27-2012, 09:39 PM   #1
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CHF-11S or ATF Dexron?

I tried searching for this but couldn't find any threads that helped.

So i've been trying to figure out what fluid my power steering needs, my car manual didn't specify what fluid unless i'm missing a manual and i'm confused since the sticker on the reservoir is half peeled.

So whichone do I use on my car?

2007 BMW E92 328i
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      06-27-2012, 10:08 PM   #2
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Thumbs up Power steering fluid >Pentosin CHF11S or CHF202

Below is a little info about which power steering fluid to choose, hopefully this helps.

CHF 7.1, CHF11S, and CHF202 are are high performance hydraulic fluids formulated for central hydraulic systems such as power steering, rear axle steering, level control, hydro-pneumatic suspension, and shock absorbers.

Pentosin CHF 7.1 should NOT be mixed with CHF 11S,CHF202, or any other hydraulic fluids.
***However, CHF11S or CHF202 can be substituted for CHF7.1 as an "upgrade" if the system is flushed and refilled.

**Pentosin CHF11S is compatible with Pentosin CHF202, but do NOT mix with Pentosin CHF7.1 or any other hydraulic oils.

I found the best price at the time at this link for the CHF202
http://www.globalautoparts.biz/pento...ic_fluids.html

http://www.globalautoparts.biz/pento...ic_fluids.html
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      06-27-2012, 10:27 PM   #3
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Quote:
Originally Posted by Kodak View Post
Below is a little info about which power steering fluid to choose, hopefully this helps.

CHF 7.1, CHF11S, and CHF202 are are high performance hydraulic fluids formulated for central hydraulic systems such as power steering, rear axle steering, level control, hydro-pneumatic suspension, and shock absorbers.

Pentosin CHF 7.1 should NOT be mixed with CHF 11S,CHF202, or any other hydraulic fluids.
***However, CHF11S or CHF202 can be substituted for CHF7.1 as an "upgrade" if the system is flushed and refilled.

**Pentosin CHF11S is compatible with Pentosin CHF202, but do NOT mix with Pentosin CHF7.1 or any other hydraulic oils.

I found the best price at the time at this link for the CHF202
http://www.globalautoparts.biz/pento...ic_fluids.html

http://www.globalautoparts.biz/pento...ic_fluids.html
Thanks for the info but I already have the fluids but still trying to figure out whichone to use in my power steering reservoir since i'll be flushing out my power steering, if you look closely the sticker is half peeled and says CHF-11S but on the bottom it says ATF Only.

So which one of these two do I use?
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      06-28-2012, 05:37 AM   #4
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Use the CHF-11S. The markings on the cap have you confused. The sticker is meant to cover the cap markings. BMW has been using that powersteering oil reservoir since the mid-80s so they've just put a sticker over the cap. The cap (without the sticker) is used on other BMW models that use Dexron for the power steering. All E90s with the N52 use CHF-11S.
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      06-28-2012, 06:19 AM   #5
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Quote:
Originally Posted by Efthreeoh View Post
Use the CHF-11S. The markings on the cap have you confused. The sticker is meant to cover the cap markings. BMW has been using that powersteering oil reservoir since the mid-80s so they've just put a sticker over the cap. The cap (without the sticker) is used on other BMW models that use Dexron for the power steering. All E90s with the N52 use CHF-11S.
When you say all E90's does that include my E92? I also have one more question, what is that little tube thing that sticking out from the picture? I never figured out where that went.
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      06-28-2012, 07:19 AM   #6
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That is your pre wire for the alarm.

if you get the alarm kit, that plugs into a hood sensor that you install in that area.
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      06-28-2012, 07:23 AM   #7
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Use the chf 11s. Do not use ATF.
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      06-28-2012, 02:40 PM   #8
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Quote:
Originally Posted by Brian_TII View Post
Use the chf 11s. Do not use ATF.
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      06-28-2012, 02:56 PM   #9
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Thanks everyone for all the help and info, i'm a first time owner of a BMW so i'm not familiar with the engine components.

I flushed my power steering fluid today and now no more whining noise and thank you Des for that info.
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      06-28-2012, 05:47 PM   #10
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My N54 does not have a sticker on the reservoir, so I use ATF. But now I'm wondering if it just fell off (I'm not the orig owner).
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      06-29-2012, 12:05 AM   #11
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Quote:
Originally Posted by ETexas335
My N54 does not have a sticker on the reservoir, so I use ATF. But now I'm wondering if it just fell off (I'm not the orig owner).
That's not good, i'm amazed your power steering didn't give out due to wrong fluid unless it is the right fluid. But does your reservoir look exactly like mines, just without the sticker?
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      06-29-2012, 10:51 AM   #12
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Hey guys check this thread out if you haven't already.
http://www.e90post.com/forums/showthread.php?t=471081

I also mention this thread in the DIY one as well.
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      06-29-2012, 09:25 PM   #13
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Quote:
Originally Posted by JS-NA.E92 View Post
That's not good, i'm amazed your power steering didn't give out due to wrong fluid unless it is the right fluid. But does your reservoir look exactly like mines, just without the sticker?
Yes, exactly but without the sticker. But I thought I read a thread on here that had several people stating that some n54's used ATF, some Pentosin.
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      06-29-2012, 09:43 PM   #14
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Quote:
Originally Posted by ETexas335 View Post
Yes, exactly but without the sticker. But I thought I read a thread on here that had several people stating that some n54's used ATF, some Pentosin.
I have a N52 so I wouldn't know anything about that, maybe some members who own a N54 can clarify this for you.
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      06-30-2012, 07:30 AM   #15
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Quote:
Originally Posted by JS-NA.E92 View Post
When you say all E90's does that include my E92? I also have one more question, what is that little tube thing that sticking out from the picture? I never figured out where that went.
The tube thing sticking out in the picture (with the black plastic cap on it) is the air conditioning schrader valve for adding freon to the AC system.
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      07-01-2012, 02:19 PM   #16
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11s =) use what the green sticker says!
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      10-02-2012, 05:48 AM   #17
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Quote:
Originally Posted by JS-NA.E92 View Post
Thanks everyone for all the help and info, i'm a first time owner of a BMW so i'm not familiar with the engine components.

I flushed my power steering fluid today and now no more whining noise and thank you Des for that info.
How much steering fluid did you use to flush? Did you use the suck out of reservoir refill method?

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      10-02-2012, 06:44 PM   #18
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Quote:
Originally Posted by Pittsburger View Post
How much steering fluid did you use to flush? Did you use the suck out of reservoir refill method?

Sure did, I used the whole thing but others used one in a half.
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      10-03-2012, 11:22 PM   #19
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Quote:
Originally Posted by ETexas335
My N54 does not have a sticker on the reservoir, so I use ATF. But now I'm wondering if it just fell off (I'm not the orig owner).
Read somewhere the pentosin fluid is for cars with cold weather package.
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      10-04-2012, 10:13 AM   #20
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Quote:
Originally Posted by talisman311 View Post
Read somewhere the pentosin fluid is for cars with cold weather package.
I don't have ZCW Package on my car, I still used pentosin cuz it was recommended by my local dealership.
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