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  #1  
Old 05-28-2008, 10:48 PM
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How to R&R Sway Bar on a W126????

The end of my sway bar is damaged behond repair because the bolt that holds the rubber bushings fell out and the end got battered from hitting the part it fits into.

How is the sway bar R&R? It goes thru the frame and has a 90* bend on both ends.

P E H

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  #2  
Old 05-28-2008, 10:49 PM
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Everything between the engine and the firewall has to come off. Yes, even the brake master and brake booster.

If you're going through the trouble, consider a beefier sway bar off a 126 coupe. I've heard it fits. I don't know if it's worth the effort to pull one yourself, though.

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  #3  
Old 05-28-2008, 11:26 PM
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Sixto,

But how does the sway bar go thru the holes in the frame with the 90* bend on each end? I could get the broken bar out by cutting off one end but still can't get new one in. Is the sway bar in 2 pieces inside the fire wall/engine?


I have another sway bar in a parts car I can use.

I'm thinking of drilling out the end of the broken sway bar, tapping threads in it and putting in a bolt. Either that or weld on a new end.

P E H
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  #4  
Old 05-28-2008, 11:40 PM
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Quote:
Originally Posted by P.E.Haiges View Post
Sixto,

I'm thinking of drilling out the end of the broken sway bar, tapping threads in it and putting in a bolt. Either that or weld on a new end.

P E H
Thats probably the easiest option, and most time effective.
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  #5  
Old 05-28-2008, 11:55 PM
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AIRNUTS,

Yes repairing the broken bar would be easier then replacing it. I actually looked at all the stuff between the firewall and the engine. THere's a lot of stuff in there: wires, relays brake booster, ETC.

I'm going to attempt to drill out the broken bar tomorrow. I hope its not hardened steel.

P E H
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  #6  
Old 05-29-2008, 12:02 AM
ForcedInduction
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The rear bar is an easy half hour or less job, the front is a royal PITA. I agree, repair if you can and and save replacing it as the last option.
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  #7  
Old 05-29-2008, 12:09 PM
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The Job.

W126 The EPIC has BEGUN... Project "Sway" is Underway!

Would this adapter work??

http://www.peachparts.com/diy/mb_tools/mb_tools.php?page=35

Dave
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Old 05-29-2008, 12:28 PM
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PawoSD replaced a sway bar awhile back. I do not remember if he removed a ton of stuff or not.
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  #9  
Old 05-29-2008, 07:12 PM
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dmorrison,

Sure looks like it will work. Do I get it from Phil at Mercedesshop?

Thanks for the information. I was either going to drill out the end of the broken sway bar(PITA), tap threads and put a bolt in the end or cut the end off a good sway bar and weld it onto the broken one. This adapter will save me a lot of trouble.

P E H
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  #10  
Old 05-29-2008, 07:47 PM
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Paul,

Check out this repair procedure by Pete Burton. He's an excellent mechanic and you can be sure that it'll work.

Swaybar repair pictoral, 300SD
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  #11  
Old 05-29-2008, 08:14 PM
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Brian,

The repair job by drilling the swar bar is very close to what I was going to do before I saw the adapter suggested by dmorisson, which is what I am going to try. Thanks for the info, though.

I think I will check the other side before I order just one adapter. I thought the bolt became loose and fell out, thus loosing the rubber bushings and the end of the sway bar was just beat off by hitting the metal hole of the suspension part it went into. But now I believe the end of the sway bar rusted off.

P E H

Last edited by P.E.Haiges; 05-29-2008 at 08:23 PM.
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  #12  
Old 05-29-2008, 08:18 PM
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Quote:
Originally Posted by P.E.Haiges View Post
Brian,

The repair job by drilling the swar bar is very close to what I was going to do before I saw the adapter suggested by dmorisson, which is what I am going to try. Thanks for the info, though.

I think I will check the other side before I order just one adapter. I thought the bolt came out and the end if the sway bar was just beat off by hitting the metal hole of the suspension part it went into. But its possible the end of the sway bar rusted off.

P E H
Yes, I was not aware that a repair kit exists for that bar. It looks like the best solution provided the weld doesn't leave the bar brittle.

If you do it, please post on your success with it.
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  #13  
Old 05-29-2008, 08:45 PM
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Replacing the entire bar is much more fun.
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  #14  
Old 05-29-2008, 08:46 PM
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Brian,

I was thinking about the welding possibly making the sway bar brittle, so I may just try the drilling repair first. If I screw it up, then I will have to get the adapter.

I would hope the adapter had some weld holes in it near the end of the sway bar to keep the heat as far as possible toward the end of the sway bar. If there are not weld holes there I might drill some.

One thing that wasn't in the drilling repair write up was to start drilling thru the threaded area in the end of the sway bar with a drill the size of the threads to get the hole started in the center. Then U can start using a smaller drill for a pilot hole. Its always easier drilling a larger hole by drilling a small pilot hole first.



P E H
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  #15  
Old 05-29-2008, 08:50 PM
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pawoSD,

That's the kind of fun I don't need.

P E H

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