1992 500SL Power Steering Replacement Procedure Needed - Mercedes-Benz Forum
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post #1 of 27 (permalink) Old 05-20-2015, 12:30 PM Thread Starter
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1992 500SL Power Steering Replacement Procedure Needed

Can anyone point me to directions or preferably a video on how to remove the fluid container (reservoir) and steering pump box for a 1992 500SL ?
I've found YouTube videos on other model Mercedes which don't help me.
I can't see where you unbolt the reservoir to get to the pump.
I even purchased the STAR Service Manual Library Model 129 which I can't seem to load on any of my computers.
I want to try to rebuild my leaking pump or buy a new one.
Any DIY help would be appreciated.
Thanks
Phil
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post #2 of 27 (permalink) Old 05-21-2015, 01:11 PM
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This one should be close to yours.

Pelican Technical Article - Mercedes-Benz W129 / R129 - Power Steering Pump Removal


If your is anything like mine there are 2 bolts on the backside. torx bits

Last edited by rumb; 05-21-2015 at 01:54 PM.
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post #3 of 27 (permalink) Old 05-21-2015, 03:08 PM Thread Starter
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Originally Posted by rumb View Post
This one should be close to yours.

Pelican Technical Article - Mercedes-Benz W129 / R129 - Power Steering Pump Removal


If your is anything like mine there are 2 bolts on the backside. torx bits
Rumb,
Thanks for your help. That was EXACTLY what I needed.
WOW, illustrations and clear guidance. Couldn't ask for anymore than that.
I'm going to have to check out Pelican Parts for more Technical Articles.
I wonder if they have anything on rebuilding that pump.
I sent away for the seal kit and was going to wing it but if they have anything like this article, it would be a great help.

Thanks again
Phil
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post #4 of 27 (permalink) Old 05-23-2015, 09:55 PM
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If you need any other assistance, I have the dealer oem repair manuals that cover
everything. Just an FYI. Have a great holiday weekend!
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post #5 of 27 (permalink) Old 06-03-2015, 08:12 AM Thread Starter
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Kayrunner,
Thanks for the response.
Do you have any procedural documentation written or video that shows how to rebuild the Vicker's type Power Steering pump on a 1990 through 1992 500SL ?
I've found older or newer but not exactly that pump.

Thanks in advance.
Phil
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post #6 of 27 (permalink) Old 06-04-2015, 03:32 PM Thread Starter
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Rumb,
When you say there are 2 bolts torx bits on the backside where are you talking about.
the reason I ask is I followed the Pelican Parts procedure. I have everything off but I still can't get the pump loose.
I've tried to get something behind it to break it free but it seems like there's something else holding it on.
I really want to smack it with a pry bar and a hammer but thought I'd ask you about those 2 bolts first.
So, can you zero me n on the location of the torx bolts and what size they are.
Thanks in advance.
Phil
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post #7 of 27 (permalink) Old 06-04-2015, 04:31 PM
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Phil,


There is a very good thread on the removal and replacement of the power steering pump - https://www.benzworld.org/forums/w140...-overhaul.html - suggest you check it out. I followed those instructions and had no problem at all with the job. I do have the necessary tools (didn't use air tools with all of the aluminum involved) it is not a bad job.

Add a quart of MB PS fluid, blue Loctite and some rags and you've got what you need.

Good luck..
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post #8 of 27 (permalink) Old 06-04-2015, 04:44 PM
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Power steering pump removed
There are two bolts that you have to get from rear/ under car
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post #9 of 27 (permalink) Old 06-04-2015, 04:46 PM
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And
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post #10 of 27 (permalink) Old 06-04-2015, 05:39 PM Thread Starter
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I guess the problem is that I can't get the bracket that holds the pump and the reservoir off to get to the those bolts.
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