E-Class (W212) 2010 - 2016: E 350, E 550
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Old Feb 2, 2017 | 02:06 AM
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control arm

is there any specific instructions on how to remove upper control arm from a knuckle?
i attempted a try to replace it today , but couldnt get the park with ball joint out , do i need a special tool to get it out? i thought i just need to remove the bolt and it would come off , did i miss something?
looking at my new control arm and i dont see how it would get stock so hard where even a hammer didnt help. im lost lol

edit: i think i need that bushing remover tool.
Attached Thumbnails control arm-snapchat-1291198703.jpg   control arm-snapchat-872256338.jpg  

Last edited by belarus27; Feb 2, 2017 at 02:12 AM.
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Old Feb 2, 2017 | 08:41 AM
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So..... I take it you have never done this kind of work before? You do need a special tool or you can bang on it with a hammer. I would suggest finding someone who has done this type of work before to help you out. Also do some research before you take something like this on.

Last edited by insame1; Feb 2, 2017 at 04:20 PM.
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Old Feb 2, 2017 | 10:14 AM
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Originally Posted by insame1
So..... I take it you have never done this kind of work before? You so need a special tool or you can bang on it with a hammer. I would suggest finding someone who has done this type of work before to help you out. Also do some research before you take something like this on.
yes you are right , ive never changed a control arm before ( but i have done some DIY's thanks to this forum , and they were a lot more complicated) , but it seemed way easy , so i decided to give it a try. After multiple researches and finding the right replacement parts. what i missed is that to remove ball joints i need a tool.
sad part is that if i had it it woulda took me 30-50min to do one side.
we all learn our mistakes lol
once i get the tool ill be golden.
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Old Feb 2, 2017 | 10:18 AM
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btw. any recommendations on what tool is the right one? or i heard autozone or oreilly has tools for rent...will stop by and ask them also.

any help is appreciated though.

im sure once you hear some clunking/squeeking noises , you gonna want to change all ball joints and bushings as well.
ofcoarse most not gonna play with it and take it to INDY or Dealer , but there are also DIY guys that would use some info and tips to get that job done.
thanks MB enthusiasts
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Old Feb 2, 2017 | 03:12 PM
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been here long enough to know that theres no documented thread (DIY with pics) about this. might be a good place to start. up to you mate but i for one would be interested.
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Old Feb 2, 2017 | 03:30 PM
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Originally Posted by beejAMG
been here long enough to know that theres no documented thread (DIY with pics) about this. might be a good place to start. up to you mate but i for one would be interested.
lol i figured since there is nothing i could find on google about this.. w211 and older models only.
will buy that ball joint separator after work , and will give it another try possibly with pictures coming along. (If it goes smooth lol)
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Old Feb 2, 2017 | 03:33 PM
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goodluck mate!
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Old Feb 2, 2017 | 04:22 PM
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http://www.ebay.com/itm/like/2527393...&ul_noapp=true

this should work
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Old Feb 2, 2017 | 04:44 PM
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Originally Posted by insame1
thank you ! But i will give this one a try , people left good reviews , and it should be in stock in my local Harbor freight store.

http://www.harborfreight.com/3-4-quarter-inch-forged-ball-joint-separator-99849.html


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Old Feb 10, 2017 | 03:19 AM
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so it happened finally , got the tool from Harbor freight , and today after work decided to do it. I got a new upper control arm and a ball joint replaced , did a short drive , and noticed that the steering feel got a bit different feel to it , feeling a bit stiffer , ill see tomorrow on free way if any difference.
unfortunately it didnt solve my problem , i still have that clunking noise , i will order a set of bushings for lower control arm hope that helps , if not gonna get a new strut bar after.
im at almost a 100k miles and new suspension parts would have to be changed soon anyway , atleast its not a waist.
Attached Thumbnails control arm-20170209_232038.jpg   control arm-20170210_000525.jpg   control arm-20170209_204018.jpg   control arm-20170209_201550.jpg   control arm-20170210_000443.jpg  


Last edited by belarus27; Feb 10, 2017 at 03:27 AM.
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Old Feb 10, 2017 | 03:20 AM
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appreciate everyones help , will update with the final solution
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Old Feb 10, 2017 | 09:54 AM
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Good job so far. This will be a good resource for future reference.
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Old Feb 11, 2017 | 03:42 AM
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Did alignment today , it was really off where it supposed to be.so alignment is needed for sure after changing suspension components.
Btw... i noticed that the car feels more solid , not as it was ' soft' before. I actually enjoy more driving it now
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Old Feb 11, 2017 | 02:20 PM
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Originally Posted by belarus27
Did alignment today , it was really off where it supposed to be.so alignment is needed for sure after changing suspension components.
Btw... i noticed that the car feels more solid , not as it was ' soft' before. I actually enjoy more driving it now
Nice work!
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Old Feb 11, 2017 | 05:45 PM
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Originally Posted by Abrown3mtg
Nice work!
Thanks man.
Had a lil vibration around 64-69mph , went to do wheel balance , and impressed , how smooth everything is.
No regrets of spent money nor time.
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Old Feb 11, 2017 | 10:38 PM
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I learned over the years of doing stuff like that, that heat helps a lot!!! and wd40. Sometimes dont even need any tools
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Old Feb 11, 2017 | 11:35 PM
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Originally Posted by IgorE350
I learned over the years of doing stuff like that, that heat helps a lot!!! and wd40. Sometimes dont even need any tools
Heat for what? To do the ball joints?
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Old Feb 12, 2017 | 09:05 AM
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Originally Posted by belarus27
Heat for what? To do the ball joints?
Anything you do. tools are good to have, but sometimes heating up nuts or bolts or anything that hard to unscrew or take out, i heat it up a little and it gets what i need done, not always but most of the time.

Last edited by IgorE350; Feb 12, 2017 at 09:08 AM.
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Old Feb 12, 2017 | 11:08 AM
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Lol you right actually , i totally forgot about this technique
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Old Feb 20, 2017 | 09:15 PM
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aight so that clunking sound turned out to be a bad LEMFORDER sway bar link.
got my new OEM mercedes stabilizer links installed , and no more clunking. drove around the neighborhood and all is good... atleast for now.

some bright news in this gloomy weather
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