Where do I add the Power Steering Fluid? - Page 2 - Mercedes-Benz Forum
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#11 (permalink) Old 12-10-2007, 09:22 PM
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Unhappy Power Steering Fluid

Quote:
Originally Posted by popyu View Post
First of all, I am a complete noob on cars...

Also I learned that I could use anyone of these fluids?

Pentosin CHF11S
Febi bilstein 08972
Mobil 1 ATF
Valvoline super syn power steering fluid

Quote:
Originally Posted by Wolfgang View Post
Hello Mitch. Looks like that is actually approved by Mercedes.

Here's the list:

Approved Dexron III Automatic Transmission Fluids for M-Class W163 Power Steering
Castrol Dexron-III/Mercon ATF F-30341
Castrol Transmax M-22257/22096
Chevron ATF Dexron III F-30108/30159
Citgo Multi-Purpose ATF D-21571
Exxon Superflo ATF Dexron III F-30111
Havoline ATF Mercon/Dexron-III F-30321
Texaco ATF Mercon/Dexron-III F-30321
Pennzoil ATF D-22413/F-30110
Quaker State Dexron-III/Mercon F30161
Sunoco ATF Dexron-III/Mercon F-30176
Unocal Multi-Purpose ATF D-22413/22431
Valvoline ATF Type D
I was thinking of using Valvoline Dex/Merc or Mobil 1 ATF synth

Both not on the list

http://www.benzworld.org/forums/image.php?type=sigpic&userid=107706&dateline=11958  33928

Last edited by LiftdBlueML320; 12-10-2007 at 10:42 PM.
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#12 (permalink) Old 12-11-2007, 12:09 PM
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Why mess with power steering fluid ?

The MB power steering fluid is dealer list $9 a quart - sure, that's pricey but a top off, even a o-ring and/or reservoir replacement, will use less than a one quart..buying (2) quarts and having a full spare quart is still less than $20.

Where you don't double flush out all the existing fluid - then you can run into a compatibility problem between (2) different fluids/brands - why risk that on top-off/0-ring/reservoir anything less than a full fluid flush ?
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#13 (permalink) Old 12-12-2007, 07:23 AM
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I fully agree with fabbrisd1, don't mix two different fluids, I had to learn the hard way.
The MB Steering fluid is Pentosin according to my Sindelfingen Buddy's. They had a
meeting about it to change to a different Brand less expensive in the near future. Because the dealers are complaining about high price inventory.

By the way my local dealer charged me $16 for 1 Liter (1quart).
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#14 (permalink) Old 06-09-2009, 06:50 PM
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You guys are the best! I am having this same issue with my 02 ML320. Thanks for the advice!
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#15 (permalink) Old 01-10-2010, 01:00 PM
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So it is bad if you don't flush it out, and just add new fluid? what can happen?
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#16 (permalink) Old 01-12-2010, 08:41 AM
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unknown fluid

What to do if I don't know what fluid previous owner used?
Is it safe to use MB brand without flushing my tank?
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#17 (permalink) Old 01-12-2010, 08:53 AM
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Pentosin has 2 different (At least last time I checked) fluids
7.1 and 11 you cannot mix these so find out what is actually needed in your case and just use that.
Just my .02$
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#18 (permalink) Old 01-12-2010, 09:08 AM
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Thank you Finn1,
I'm sorry I didn't specify. I am asking for Power Steering fluid. I realy don't know what fluid is in my car right now. By the way the tank seem to be completly empty. Pentosin is it a power steering fluid? Is it a MB brand? Should I by MB brand and just fill my tank?

Thanks
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#19 (permalink) Old 01-12-2010, 01:18 PM
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It is a power steering fluid.
The Pentosin has crept up in price to the point where if you need it quickly I would just
get the fluid from the dealer and be done with it. Getting it filled back to a proper level
as soon as possible is much more important than trying to save a few bucks on the Pentosin.
The Pentosin is excellent stuff, but can be hard to find locally. It is the CHF11S.
Also the Febi is just as good. Febi 08972. Both will blend fine with what is already in the
system if you can get it locally.
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#20 (permalink) Old 01-13-2010, 06:03 PM
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well today I replaced my reservoir and o ring(wanted to replace the C clip but the dealer didn't have one in stock). My 2002 ml320 had a bad leak before the change and power steering completely gave out. This leak was progresively getting worse over the last 2 months and I regret not doing it sooner, since it wasn't that difficult or time intensive. Before reading this forum I didn't realize that non MB ps fluid should be avoided and I put in generic ps fluid from the local car craft auto parts store. Today my intent ing was to drain out all the old fluid and replace with new MB fluid. I disconnected the lower power steering hose going to the radiator, and about 1/2 a quart of fluid came out, but I think most of it was from the radiator side and not from the ps pump side since this didn't seem to be the lowest point in the system. I put more fluid in the reservoir with the lower hose disconnected and more fluid came out, but again mostly from the radiator. I put everything back together and did the 50 turns lock to lock with the engine off and now it seems to be working fine. My question is; if there is still some inferior ps fluid in the system,am I looking at trouble down the road? If I should drain the system properly how do I get all the old fluid out, does anyone know specifically what to open up to drain all the ps fluid out?
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