1992 500SL Power Steering Replacement Procedure Needed - Page 2 - Mercedes-Benz Forum
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post #11 of 27 (permalink) Old 06-04-2015, 05:40 PM Thread Starter
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When I click on the link or copy the link and paste it in I get Page not found.
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post #12 of 27 (permalink) Old 06-04-2015, 06:00 PM
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There is also one bolt on the front that holds the bracket t to the block. After you get the whole thing off then you remove the pump from the bracket.
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post #13 of 27 (permalink) Old 06-04-2015, 06:41 PM Thread Starter
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I removed three 13mm bolts; (facing the pump) one on the bottom, one on the left and one at the top right that is actually a nut on a stud and then the 5.5mm hex at the top left under the reservoir. Did I miss one?
P.S. not the 4 that hold the pump together.
Update:
I found a picture of the bracket and it looks like I have all four bolts removed.
So, I guess I have to put some force behind it and break it free. I hope I don't break anything. Any suggestions?
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Last edited by Phil DeSimone; 06-04-2015 at 09:02 PM. Reason: New Information
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post #14 of 27 (permalink) Old 06-05-2015, 05:43 AM
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ah, I have the newer style pump, not the one like yours.....
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post #15 of 27 (permalink) Old 06-05-2015, 07:49 AM
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I see, the one pictures is for a 97. Was hoping the images would help you

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post #16 of 27 (permalink) Old 06-05-2015, 08:50 AM Thread Starter
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I added this yesterday but I have know idea where it ended up.

I found a picture of the bracket and it looks like I have all the bolts removed. 4 bolts, one of which is a hex bolt.

Could it be that it's just stuck from 120k miles of heat and grease and grunge?

I guess I'm going to go in with a pry bar and other implements of destruction and hope for the best?
I'll let you know how it turns out.

And I thought getting this thing off was the easy part. I hope the seals on the pump don't give me this much trouble.
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post #17 of 27 (permalink) Old 06-05-2015, 11:03 AM
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Phil,

Let me try the link to the W140 forum again - https://www.benzworld.org/forums/w140...-overhaul.html. This has some good photos: the E12 torx bolt on the back side of the pump that can only be reached from underneath the car is one that you probably have left and that is the worst photo. The reinstall photo is a little better. I can tell you for sure that if you are not underneath the car, you can't see it. Once you have all the bolts out it will drop right off.

(while it is titled steering pump overhaul it has a good remove and replace how to)

Again good luck.
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post #18 of 27 (permalink) Old 06-05-2015, 11:36 AM Thread Starter
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Boydm,
This time the link worked. I can see that this is a different pump though. Mine is from a 1992 500SL. I'll look for the E12 Torx bolt. Are you sure it will be there on the 92 model?
In any event, this link looks like it will come in handy when I get the pump off and go to replace the seal and o-rings.

I've been referring to the following link I received from a user named rumb that lists the removal process:

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

Check it out.
I go through every step but can't seem to get it to budge.
I does seem like there is still something holding it on.

I had the front of the pump off trying to follow this procedure. If I can't get the bracket off, the only thing left would be to take the top off again and replace the main seal. I really wanted to replace that little 3 inch piece of hose that goes to the reservoir though. Unfortunately,I can't do that unless I get the bracket off to get to 2 bolts on the back of the bracket.
Arrrrrrrgggggg!!!!!!!

Thanks and let e know if you come up with anything else. I'll let you know if I have any luck.
Phil
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post #19 of 27 (permalink) Old 06-05-2015, 01:11 PM Thread Starter
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Kayrunner, or anybody,
Would you be able to get me the blow-out diagram of the Power Steering Pump, reservoir and bracket with all the bolts and fasteners for my 1992 Mercedes 500SL ? I believe from 1990 to 1992 would work.
I think they changed to the SL500 in 1993 which had a different reservoir and bracket.

It would be greatly appreciated.

Thanks
Phil
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post #20 of 27 (permalink) Old 06-06-2015, 09:43 AM Thread Starter
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I'm not sure how this posting split into two but somehow it did. So, I'm entering this post again in this side of the split?

Kayrunner, or anybody,
Would you be able to get me the blow-out diagram of the Power Steering Pump, reservoir and bracket with all the bolts and fasteners for my 1992 Mercedes 500SL ? I believe from 1990 to 1992 would work.
I think they changed to the SL500 in 1993 which had a different reservoir and bracket.

It would be greatly appreciated.

The 90-92 bracket is attached below.

Thanks
Phil
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