Look at this link to learn the basics to power steering maintenance.

http://dieselgiant.com/mercedespowersteeringfluidservice.htm

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1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
Mercedes How-To and Repair Pictorials
I love the smell of diesel smoke in my hair

Thanks for the heads up DieselGiant. I did in fact study your page, but my PS Resevoir is something else! I'll try to snap a pic of it tonight. Its a wierd bird.

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91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

red, the PS pump on my car is like that as well, perhaps the later ones are different. To take off the filter you have to push that white cylindrical part down which will compress the spring and allow you to undo the nut.

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1985 CA 300D Turbo , 213K mi

Here's a writeup I did on the procedure.

http://www.peachparts.com/Wikka/PsFluidFlush

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

Guys,
thanks for all the replies. Heres a pic I just snapped. I'm having trouble understanding how to remove the deal my screwdriver is pointing at..... How do you remove that push nut? Do I replace it with a new one?

I think I win the award for the nastiest fluid....

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91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

Nice pic Doesn't that nut screw off when you push down on the spring???

Mine did. I followed DG's SBS to change PS F and filter....

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'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."

Hmmm,
I'll have to tinker with it this weekend. I have a new filter and lots of TypeF for it, so hopefully I can clean her up a little bit!
Thansk for the replies!
Dub

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91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

NO TYPE F!! type A

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have no worries.....President Obama swears "If you like your gun, you can keep it

REally? I heard last time, no Dexron/Mercon and then to use Type F, now Type A?



frrom whunter:
Flush your power steering - baby its gross in there

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91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

I've seen much worse fluid

Atlesast your doesn't look as dark as the motor oil.

My 300SD was like that when I got it.

All fixed now.

[QUOTE=redassag00]REally? I heard last time, no Dexron/Mercon and then to use Type F, now Type A?


Type "F" is more contemporary to your car than type "A". It also has slightly better lubricating properties than "Dex". The bottles of "F" that I have around right now say on them ... approved for power steering use where ATF is specified.
I rebuild an occasional tranny and type "F" or M1 synthetic are what I use ...even in GM trannys. Type "A" would work in you MB PS, but why use an "antique" fluid when you can use a perfectly acceptable, if not completely better, fluid. Type "A" is still here and there, but "F" should be far easier to find . M1 synthetic would be even better, but you might have old, dirty, worn out seals start leaking due to the detergent properties of synthetics.
If I were starting off with a freshly rebuilt or new MB PS system on a 70's or 80's MB, I would use M1(Mobile 1). Later.

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Diesel-guy

do yourself a favor and use valvoline power steering fluid from autozone.
I have cured many power steering leaks by just removing the dextron and replacing with power steering fluid.
Just MY experience!
Steve

Thats what I used to flush out and fill mine a few weeks ago.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

I just took a shop towel, and carefully pulled the washer off, making sure not to pull it off too fast. I've heard that by pulling it fast, some have lost the retaining spring when it flies off or have gotten injuries from the flying spring.

-Joe

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

The threaded rod that the clip and spring is on, will unscrew from the pump. Seems like half the time the rod comes out instead of the nut that I am trying to undo. Either way, I can get the filter out, and plop in a new one.

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D