How To for Front Sway Bar replacement? - Mercedes-Benz Forum
 
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post #1 of 10 (permalink) Old 05-20-2014, 06:29 AM Thread Starter
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How To for Front Sway Bar replacement?

Morning all, was just wondering if anyone that's replaced their sway bar could give any advice or tools that need to be ordered. I can't seem to find much info about replacing the actual bar in the computer manual, just the end links. Also, what parts do I need to order? I checked parts.com and they list the bar and the end links, and then some brackets and things. What is advisable to go ahead and change?
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post #2 of 10 (permalink) Old 05-21-2014, 10:32 AM
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If I may ask, why are you replacing it?

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post #3 of 10 (permalink) Old 05-22-2014, 09:23 PM Thread Starter
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Well, I've replaced literally every piece of the front suspension ( inner & outer tie rods, main lower control arm, lower ball joint, thrust arm, shocks, brakes) except for the upper control arm & ball joint, springs, and sway bar (including end links). I have a rather bad clunk in the front suspension, still. When I go over an even bump (like a speed table), all I get is the typical 'whump' you would expect when going over a large bump, but if it's individual bumps, the clunking begins. I would just go ahead and order parts and try and replace it, but 1) It looks a little tricky (on a CDI anyways), and 2) I've already spent $5,000+ on suspension and tires recently, I'm trying to reign it in a bit. I've read a few posts about people wanting/needing to replace it, but none ever say exactly how.
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post #4 of 10 (permalink) Old 05-22-2014, 10:57 PM
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except for the upper control arm & ball joint
The joint at the end of that arm can clunk even if it feels tight. Even the dealer missed it and I did it my self and took it in for an alignment.

Before you replace it gently use a pry bar and if there is even the tiniest amount of movement that is probably where your clunking is coming from.
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post #5 of 10 (permalink) Old 05-23-2014, 12:31 PM
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I had what maybe the same noise you are referring to on my 211 wagon. It turned out to be the joint that presses into the lower control arm that the sway bar link attaches to. Replaced both sides and everything was quite.
My dodge truck has a similar type joint on the sway links and it was also making noises. Rather than replace the links I tried to grease them with a needle adaptor on my grease gun. Yes it did put a very small hole in the seal but I was going to need to replace them anyway so I figured I could do no harm. The grease trick worked fine and no more noises. The truck has a lot harder use and more miles per year than my wagon and now two years later still no noises.
I wish I thought of doing the grease needle trick on the wagon as it would have been much easier and much cheaper!!
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post #6 of 10 (permalink) Old 05-25-2014, 11:17 AM Thread Starter
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Noodles- should I try that with the wheel on the ground or the car jacked up? And reindeerman- I replaced the entire lower control arm, so hopefully the new joint is okay.

Thanks guys!
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post #7 of 10 (permalink) Old 05-25-2014, 12:19 PM
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As far as checking for play that corner of car need to be off the ground.
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post #8 of 10 (permalink) Old 06-06-2014, 08:16 AM
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I'm experiencing the same clunking. Replaced the right lower ball joint, front thrust/control arm and still a clunking. Upper ball joint seems tight. It's very frustrating.

Could someone post a picture of the front sway bar and where to pry to test for play???

Warren
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post #9 of 10 (permalink) Old 06-20-2019, 08:26 AM
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I just want to comment on this thread as I have been chasing a similar issue with my 05' e320 CDI for the past few months. I had this creaking noise in my front end over small bumps, speed bumps, or just slightly turning into corners. So, being the handy DIY mechanic, and I have the luxury of a lift in my garage I set out to tackle this issue. I noticed a few cracked rubber bushings in the front and rear control arms, one ball joint was cracked, and the front struts at 120K. Well after replacing pretty much everything in the front end and the creak STILL was there! Well low and behold I grab the front sway bar in the middle while in the air and "creak creak creak"! Duh it was the bushings on the sway bar! Great I told myself. Fairly easy and cheap. Nope. Mercedes requires you to replace the WHOLE sway bar-not just the rubber bushing as 99% of every other manufacture allows. I bought the sway bar factory new online with new brackets for around $200. (MBOEMPARTS.COM). Anyways, the more I researched this the more I see it is not that uncommon of a problem. Anyways, if you're having a strange creak or groan in your front end, remove that front belly pan, jack your car up and try to flex the middle of the sway bar to see if you get any creaking. Hope this helps someone researching here.
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post #10 of 10 (permalink) Old 06-20-2019, 10:10 AM
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We offer a wide variety of front end parts for that model, please take a look if you need any more items: https://www.autohausaz.com/catalog/c...pension_system

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