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1959 220S cabriolet, 1983 240D original owner, 1999 E300 turbo diesel, 1988 560SL, 2003 SLK320
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Discussion Starter #1
Please help me understand the following fluids and their correct usage please. I just acquired some excess fluids from a friend and want to make sure I use them properly.

Power steering fluid - I have on hand Febi 08972, part #000 989 88 03. I believe this to be the correct fluid for both my '99 E300D and my '03 SLK. My friend acquired a bottle of power steering from Mercedes for his '99 SLK. It is part #Q1460001 . Interestingly enough the 2004 Approved Fluids list shows the "Q" power steering fluid as only appropriate for M and the G class. Everything else is supposed to get BQ 1320001. I just noticed that the "Q" fluid is also listed as the correct fluid along with an approved Dexron III ATF for the M Class transfer case.

Hydraulic fluid - even though this fluid may have limited or maybe even no application to our 210's, I figured you guys would still know the answer. I have a bottle of Febi 02615 Hydraulic Fluid, part number 000 989 91 03 10. This fluid I believe is correct for my SLK top mechanism and nothing else in either car AFAIK.

So any comments or corrections you might have are appreciated.
 

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03 E320 4M Wagon & 97 E320
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Len:

The Q fluid is the same as the 000 989 88 03. These (along with DEX III) are used in our W210's and older recirculating ball steerings.

The BQ fluid is synthetic and for the newer cars. (Pentosin CHF 11S).

That hydraulic fluid is for convertibles and pre-W210 wagon and sedan self-leveling systems.

Incidentally, the transfer case in our W210 4Matics initially called for the Q steering fluid but later was superseded with automatic transmission fluid.
 

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1959 220S cabriolet, 1983 240D original owner, 1999 E300 turbo diesel, 1988 560SL, 2003 SLK320
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3,513 Posts
Discussion Starter #4
You are not expecting us to read the approved fluid list for ya, do you? ;)
No, not read it for me, but help to interpret what I thought was some confusing info. :)

Thanks to both of you for your replies.
 

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1998 E320 Wagon
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E320/E250 Bluetec Ford F350 6.7l
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No, not read it for me, but help to interpret what I thought was some confusing info. :)

Thanks to both of you for your replies.
This forum is fortunate having members like Lou that has the knowledge and the will to explain it, but even I realize my reply above sounds ironic, I tried to make a point that MB specifications are there to observe.
Lot of the times you will have other members coming with reply "I am using cooking oil for last 5 changes and the engine works just fine" and I don't think that should counter official list.
I misunderstood your intentions, so sorry for that.
 

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'04 G55 '80 280GE '99 S420 '98 E320 2011 E350 2016 GLA250
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If you do not have your Owners/Maintenance Manual, I think this might help:

http://www.mercedes-club-bg.com/Mercedes Benz Help PDF/Merecedes-Benz-Manuals/MBFactoryApprovedServiceProducts.pdf

To answer the O.P.'s question? Unless you have "Level Control" on your 1999, the Standard P/S fluid is the Cheap, Plain-Jane "Mercedes Steering Gear Oil".

Here are your other Approved Plain-Jane Options from Sheet 236.3 :
Mercedes-Benz Betriebsstoff-Vorschriften: Motoröl, Getriebeöl, ATF, Kühlmittel, Bremsflüssigkeiten

Now, your 2003 is a Different Bird. See page #16 . I believe this model takes the "Synthetic" PSF, or Pentosin CHF 11S.
http://www.billsden.org/fileadmin/media/mercedes/slk/docs/man_svc_products_2005.pdf

You don't have much choice on Sheet 345.0 :
Mercedes-Benz Betriebsstoff-Vorschriften: Motoröl, Getriebeöl, ATF, Kühlmittel, Bremsflüssigkeiten

It is my understanding you *DON'T* want to Mix the Old, Non-Synthetic MB-Lube, with the Synthetic Pentosin fluid.

Hope this helps to clear the Muddy waters.
 
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