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CHF 11S and CHF 7.1 can both be used. Both are made by Pentosin. I use 11S, because it is synthetic and 7.1 is mineral based.

Use CHF 11S as it is OEM. Mixing fluids may cause seals to wear. :wrench:
 

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Cool thanks. I don't want to second guess the dealer (they performed the service), but mistakes can happen. Based on my part number and description taken directly from my receipt you feel they used the right fluid? Is there a significance in the "11s" that you mentioned vs the "11" on my receipt? Thx for the reply. I can enjoy my beast now!! :)
 

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Cool thanks. I don't want to second guess the dealer (they performed the service), but mistakes can happen. Based on my part number and description taken directly from my receipt you feel they used the right fluid? Is there a significance in the "11s" that you mentioned vs the "11" on my receipt? Thx for the reply. I can enjoy my beast now!! :)
I understand, I have seen a dealership put M5 rotors on BACKWARDS. We are all in this together.. lol

Yes, the 5 Series and M5 utilize the same power steering pump and reservoir, and both use 11S.

And CHF 11 and 11S is the same thing; just "CHF 11" does not exist. If you really want to put this to rest, next time you are at the stealership, bring the part number, or just ask the parts dude for your power steering fluid and he should bring out a green tin 1 Liter bottle of Pentosin CHF-11S

:cheers:
 

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And CHF 11 and 11S is the same thing; just "CHF 11" does not exist. If you really want to put this to rest, next time you are at the stealership, bring the part number, or just ask the parts dude for your power steering fluid and he should bring out a green tin 1 Liter bottle of Pentosin CHF-11S
Board sponsor getbmwparts.com sells CHF-11S for $18

 
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