Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > ML, GL, G-Wagen, R-Class, Unimog, Sprinter

LinkBack Thread Tools Display Modes
Old 12-29-2011, 03:41 PM
Registered User
Join Date: Jul 2004
Posts: 121
99 ML 320 power steering fluid

I want to replace the fluid, should I use mineral oil based or synthetic MB power steering fluid? I want to keep the truck long term.
Reply With Quote
Old 01-05-2012, 09:27 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Either Dexron 2 ATF or MB P/S fluid is approved.

Many power steering fluid leaks on all of the ML's.

Even extended warranties on them.
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
Old 01-05-2012, 09:31 AM
Fold on dotted line
Join Date: Aug 2007
Location: SE Mich
Posts: 3,015
Originally Posted by mbdoc View Post
Either Dexron 2 ATF or MB P/S fluid is approved.

Many power steering fluid leaks on all of the ML's.

Even extended warranties on them.
Any MINERAL based fluid, whether natural or a synthetic equivalent, will work.
So will the so-called "green fluids" used in Audi, they are knock-offs of LHM.

You can also use Hyken Glacial Blue, which is made by Kendall, I believe, it's about 8.00 a gallon, so it's cheap if you leak a lot.
Invest in America: Buy a Congressman!

1950 170SD
1951 Citroen 11BN
1953 Citroen 11BNF limo
1953 220a project
1959 180D
1960 190D
1960 Borgward Isabella TS 2dr
1983 240D daily driver
1983 380SL
1990 350SDL daily driver alt
3 x Citroen DS21M, down from 5
3 x Citroen 2CV, down from 6
Reply With Quote
Old 01-06-2012, 11:01 AM
sunedog's Avatar
Registered User
Join Date: Nov 2003
Location: White Rock, SC
Posts: 200
I have a 99 ML 320 with about 275,000 miles on it. I have been using the Mercedes fluid. It leaks pretty badly these days. Have to top it off about every two to three weeks. If I get one of the cheaper fluids mentioned above, can I add it on top of the Mercedes fluid, or would I have to remove the existing fluid first? If I have to remove it, can I just suck it out with my Mityvac or do I need to drain it more thoroughly?

Also, what is the proper way to check the fluid level? I know the engine needs to be running, but do you 1) insert the dip stick until the bottom of the cap touches the reservoir or 2) do you screw the cap all the way dow? The graduation marks on the dip stick are spaced pretty closely and this makes a significant difference.

Behind every great man is a great woman. Behind every great woman is a great behind.
Reply With Quote
Old 01-11-2012, 10:35 AM
Registered User
Join Date: Jan 2008
Location: Southern MD
Posts: 36
So, what is the best way to check the p/s fluid, and mineral based is the way to go? I think I am leaking P/S fluid and I want to top it off first and see if I can find the leak from there.
1993 300D 2.5 Turbo
Daily Driver.... 238,000 miles and counting (Gone for an '03 Camry)
2000 ML-320
New Daily Driver...139,xxx and still in one piece...
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 09:42 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page