C36 AMG, C43 AMG (W202) 1995 - 2000

Idler Arm Bushing Location?

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Old Mar 11, 2012 | 07:38 PM
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Idler Arm Bushing Location?

I want to replace the idler arm bushing before I take it to my mechanic to get all of the other bushings and ball joints replaced, since he wants ~$100 to swap the idler arm bushing and from what I read it's an easy job. Thing is, I can't seem to find it. I've read that it's behind a [heat] shield/plate on the passenger side, 2 bolts to take off the shield. I've looked at the suspension diagrams but can't find the thing first-hand.

Help/pics?
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Old Mar 11, 2012 | 07:46 PM
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Originally Posted by importfan21
I want to replace the idler arm bushing before I take it to my mechanic to get all of the other bushings and ball joints replaced, since he wants ~$100 to swap the idler arm bushing and from what I read it's an easy job. Thing is, I can't seem to find it. I've read that it's behind a [heat] shield/plate on the passenger side, 2 bolts to take off the shield. I've looked at the suspension diagrams but can't find the thing first-hand.

Help/pics?
It's connected to the drag link, here are instructions from the WIS:





Hope this helps
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Old Mar 11, 2012 | 07:58 PM
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Originally Posted by 503C43 ////AMG
It's connected to the drag link, here are instructions from the WIS:





Hope this helps
The instructions are certainly helpful and so is the more idler arm-area-specific diagram. Based on the diagram, this is located on the driver's side of the drag link then? If so, I've been looking on the wrong side the whole time.
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Old Jul 9, 2012 | 06:24 PM
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Have you gotten it replaced?

I would liek to carify some things...

Passenger side, center looking to the right wheel:


Driver side, center looking to the left wheel:


Which is the idler arm..? looks like the passenger side
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Old Jul 9, 2012 | 06:48 PM
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Originally Posted by 97C28O
Have you gotten it replaced?

I would liek to carify some things...

Passenger side, center looking to the right wheel:


Driver side, center looking to the left wheel:


Which is the idler arm..? looks like the passenger side
Yes I did get it replaced. It's the passenger side (as pictured; that's it). Good luck getting it out though. I couldn't muscle it out in that tight of a spot not on a lift, so I took it to my indie.
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Old Aug 18, 2014 | 12:04 AM
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Originally Posted by 503C43 ////AMG
It's connected to the drag link, here are instructions from the WIS:





Hope this helps
This EIS diagrams are super helpful but unless I'm blind it doesn't actually list what to torque the bolts back to. Does anyone know the answer to this? Replacing bushing tomorrow to try and eliminate a bad steering wobble.
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Old Aug 18, 2014 | 05:05 PM
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Ok update from removal in progress: this thing is an absolute b!tch. Definitely doesn't help that I'm only on jackstands and not a lift, but jeez.
FYI, the diagram above must be for pre facelift models, as mine is curved like an S and attaches to the bottom of the drag link. Does anyone know how to get the idler arm off of the drag link? I have removed the bolt on the end of it but it is still very attached. When I twist the idler arm the spindle moves with it, but does not turn on the other end of the drag link. I've tried hitting it with a hammer to see if it will just slip off but it won't budge
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Old Aug 18, 2014 | 07:18 PM
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Probably have to use a press to press it out, when we do stuff like this at work lately they just have been sending the whole units with a new bushing and we send the old part for a core.

Also you could use a vise to hold the arm then use something as a punch and hammer it out..

Last edited by Somalia757; Aug 18, 2014 at 07:20 PM.
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Old Aug 19, 2014 | 12:59 AM
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Originally Posted by Somalia757
Probably have to use a press to press it out, when we do stuff like this at work lately they just have been sending the whole units with a new bushing and we send the old part for a core.

Also you could use a vise to hold the arm then use something as a punch and hammer it out..
Shame no one pointed out before that the post facelift version is a lot less DIY friendly than the pre.
I'll keep trying with the hammer tomorrow, though it didn't seem to budge at all today.

Even if I got the whole idler arm with bushing like here http://img.eautopartscatalog.com/liv...1717043OES.JPG I'd still be in the same place of getting the arm off from the drag link, like at the bottom of Saab's pic here http://s788.photobucket.com/user/vin..._0164.jpg.html
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Old Aug 19, 2014 | 09:01 AM
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Separating the taper of the ball joint "pins" from the drag link (and the drag link from the pitman arm for that matter) is really tough. I have the expensive M-B tool and haven't ever succeeded in separating them. I wish you well. If I ever have to deal with them again I'm going to send the job to a shop.
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Old Aug 19, 2014 | 09:04 AM
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Originally Posted by vinceC
Separating the taper of the ball joint "pins" from the drag link (and the drag link from the pitman arm for that matter) is really tough. I have the expensive M-B tool and haven't ever succeeded in separating them. I wish you well. If I ever have to deal with them again I'm going to send the job to a shop.
I guess we have all been warned....
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Old Aug 19, 2014 | 12:54 PM
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Originally Posted by nd4spd13
Shame no one pointed out before that the post facelift version is a lot less DIY friendly than the pre. I'll keep trying with the hammer tomorrow, though it didn't seem to budge at all today. Even if I got the whole idler arm with bushing like here http://img.eautopartscatalog.com/liv...1717043OES.JPG I'd still be in the same place of getting the arm off from the drag link, like at the bottom of Saab's pic here http://s788.photobucket.com/user/vin..._0164.jpg.html

Thats true its a pain!!! Hope you figure something out. Have you tried any lube or penetrating oil?
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Old Aug 19, 2014 | 01:00 PM
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A touch of heat perhaps?
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Old Aug 19, 2014 | 01:23 PM
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Originally Posted by DRBC43AMG
A touch of heat perhaps?
+1 and maybe a cold wet rag. Try to get that taper in the joint to shrink up after expanding.
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Old Aug 20, 2014 | 04:55 PM
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From: Chapel Hill, NC/Montreal, QC
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Originally Posted by vinceC
Separating the taper of the ball joint "pins" from the drag link (and the drag link from the pitman arm for that matter) is really tough. I have the expensive M-B tool and haven't ever succeeded in separating them. I wish you well. If I ever have to deal with them again I'm going to send the job to a shop.
Originally Posted by Somalia757
Thats true its a pain!!! Hope you figure something out. Have you tried any lube or penetrating oil?
Originally Posted by DRBC43AMG
A touch of heat perhaps?
Originally Posted by Super B
+1 and maybe a cold wet rag. Try to get that taper in the joint to shrink up after expanding.
Thanks for the suggestions guys! I ended up not replacing it. Didn't know there was a joint involved, and didn't want to go and rent a pickle wrench and all that when my tech said the bushing wouldn't help my wobble
But I did put a new steering damper on and cleaned up my exhaust tips
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