power steering filter replace
 

1985 300SD power steering filter replacement
You may want to install a new lid seal during this DIY repair.

#1. Remove lid from power steering reservoir.
#2. Remove ten millimeter nut from spring retainer/fluid level indicator.
#3. Remove spring retainer/fluid level indicator.
#4. Remove spring.
#5. Remove old filter with needel nosed pliers.
#6. Install new filter with needel nosed pliers.
#7. Install spring.
#8. Install spring retainer/fluid level indicator.
#9. Install ten millimeter nut.
#10. Install lid for power steering reservoir.

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1985 Mercedes Benz 300SD
Part: P/S Filter
Note: Metal Reinforced
Late style

M2000-97891 P/S Filter Hengst IN STOCK $4.46

M2000-97891 P/S Filter Mann IN STOCK $4.32

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1LF18P73G1MW1CZWBA&year=1985&make=MB&model=300-SD-002&category=All&part=P%2FS+Filter


PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1985 Mercedes Benz 300SD
Part: P/S Reservoir Gasket
Note: to Power Steering Pump

M2032-70025 P/S Reservoir Gasket IN STOCK $8.94

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1LF18P73G1MW1CZWBA&year=1985&make=MB&model=300-SD-002&category=M&part=P%2FS+Reservoir+Gasket

power steering filter replace, pics#2.
 

power steering filter replace, pics#2.

When you do step #2 (removing spring retainer nut) Carefully, ease the tension off of the spring or that nut may be launched into never-to-be-seen-again land! :eek: Fortunately, my brother was watching and saw where it landed. :o

What is the factory service interval for this filter change?

That's what I'm wondering... I'd say every 10K or so? :confused:



Also, I drain that pump each time I change the filter. That fluid can be nasty! :eek:

Nothing in the books that I can find. So, I'd say every 50,000 to 100,000 miles, unless you have nothing else to do.

PS Filter Change
 

My old-style filter ('86) had never been changed to the new style, pleated-paper, filter, so I freaked when I opened 'er up and did not find what I expected. Remove the nut, tan plastic, and spring, and lift out the steel plate; underneath is a fiber filter and a steel ring. Toss all this and install the new-style replacement filter. Thanks to this site's members for seeing me through.

LMAO.....While your at it take an extra 5 minutes and flush the old fluid out:

http://www.peachparts.com/shopforum/diesel-discussion/136352-flush-your-power-steering-baby-its-gross-there.html

Danny

I'm glad you wrote that. I just replaced mine and pulled out a plate, I guess what was a solid fiber filter ring, and then another retainer ring beneath that. I replaced all of these with the new filter. I expected to pull out one filter and instead started pulling out these pieces. :eek: Yes my fluid was very nasty and it looked like there was water in it (looked like coffee with cream)

I got a hair full of ps fluid when the spring and washer went flying off the spindle too :D

Change interval
 

I would suggest every 30,000 miles. For some M-Bs (like my '96 E300D) there doesn't seem to be a factory spec--the first PO took the car to the dealer for everything and changing the PS fluid was never mentioned (W210 has no filter). It looked to me as if the fluid had never been changed in 248,000 miles -- it was black and the pump was performing poorly at low engine speeds. I flushed the system and will repeat it after a few thousand miles just to make sure.

Jeremy

I've run across a couple of those style filters, you know they haven't been changed in a LONG time.:rolleyes:

Does anyone have instruction how to install P/S Pump Repair Kit 1991 Mercedes Benz 190E?

Just flushed the goo out of mine and put a new filter. Thanks for the heads up Roy.



Jim

I don't think it was ever flushed until I got a hold of it either. Mine too was noisy and labored at idle. A flush and filter did the trick.

I have a 1981 300SD and when I take the lid off of my box there is no plastic piece, just a metal collar kind of clip on top of the spring. Am I missing something inside there or do I just need to take off that clip and follow the rest? My steering wheel has about 2 inches of play, by the way.

Mine looks like yours...wondering if PO lost the plastic spring clip when changing fluids and didn't bother to get another...just bought a used pump from a junkyard for $50. will open reservoir tomorrow and see what it looks like and compare.

That metal spring clip is a lock ring, there were different styles.

Here's a pic of the "other" style, with the metal clip. Just wiggle that clip back and forth and the force of the spring will push it off.
http://www.chem.ucla.edu/%7Eswheele2...eeringpump.jpg

1983 Mercedes 380SL Power Steering pump part
 

Took off cover for the power steering pump to change out filter for my 83 Mercedes 380SL and to my surprise the plastic spring retainer and 10mm nut was missing. Does anyone have one to sell or where to get one as I could not find one (probably calling it my an incorrect name)