Q: I should replace some power steering fluid in a 300E 1990 on 1990 Mercedes-Benz 300E

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Do I use transmission fluid (ATF) or is there a specialized auto power steering fluid?
(1) Answer
(2) Comments
Call your local Napa Autoparts store and ask the counter person which fluid, and you can find the number here
I went to Kragen today they did not know, the year of the care seemed to be the issue. I called Mercedes Benz new dealership they were not at all helpful, unless they ar ethe ones doing the repairs- that is Kearny Mesa Mercedes parts department.

It is not like I haven't doen the footwaord,
The reason I cam here is to get a definitve answer from someone who has a Mercedes-
regular atf is what you need. I work on mercedes all day long. Dont waste your time and money on anything else.