C32 AMG, C55 AMG (W203) 2001 - 2007

Front Suspension Knocking

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Old 07-28-2007, 02:18 PM
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Question Front Suspension Knocking

Hi

2002 C32 Amg,everytime i go over road speed humps,getting a knocking from the front underneath of the car.
Local dealer telling me it could be Anti Roll bar bushes/droplinks

Anyone with the same issue ?
any comments/guidance/advice.
Old 07-29-2007, 08:52 AM
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C32 AMG, CL500, Jag StypeR, SLK200, Aygo, Audi TT
hi there

yeah exactly the same - I thought it may be suspension but when they took it in @ Merc Tonbridge they replaced anti roll bar + bushes and all is well now. Dont knwo how much it cost though cause mine was under warrenty

would be interested to know how much the work is though..........
Old 07-29-2007, 12:19 PM
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Thanks Shanu

Ill price parts up and let you know.
Old 07-29-2007, 12:22 PM
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2004 C32 ///AMG
its probabaly the sway bar bushings and endlinks.
no need to replace the whole bar.
Old 07-29-2007, 05:45 PM
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Something Slow
OR it could be the Steering RACK!
Old 07-30-2007, 12:16 PM
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02C32AMG
Originally Posted by Mpower-Uk
Hi

2002 C32 Amg,everytime i go over road speed humps,getting a knocking from the front underneath of the car.
Local dealer telling me it could be Anti Roll bar bushes/droplinks

Anyone with the same issue ?
any comments/guidance/advice.
Probably control arms and bushings.
Old 07-31-2007, 06:13 PM
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Changed Front Anti Roll Bar Bushes And Droplinlks.£120
All The Knockings Gone And Feels Great Again.

Thanks To All
Old 08-01-2007, 02:59 AM
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C32 AMG, CL500, Jag StypeR, SLK200, Aygo, Audi TT
yeah thought it was - sounded the same as what I had - anti roll bars and bushes - all is well now

Well im glad its all sorted - and it wasnt too expensive then I spose!
Old 08-01-2007, 09:22 AM
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2005 E320 CDI (Brilliant Silver)
Originally Posted by Mpower-Uk
Hi

2002 C32 Amg,everytime i go over road speed humps,getting a knocking from the front underneath of the car.
Local dealer telling me it could be Anti Roll bar bushes/droplinks

Anyone with the same issue ?
any comments/guidance/advice.

I took my E320 in to the Benz dealer yesterday for the exact same thing since I only had about 1700 miles left on my warranty. I got the same answer "we drove it, put it on the rack, yanked on the tie rods, etc... and they dont have any play in them. we can't recreate the problem. All seems well." It was not 1 hour later I'm driving 10 mph in the neighborhood over some rough road area and bump, clump, thump. WTF??? How could they not have heard that? Unless they were driving 40 or 50mph and then you assume its just hitting a pothole hard because I have 19" wheels with low profiles on it.
Old 08-01-2007, 01:36 PM
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C32 AMG, CL500, Jag StypeR, SLK200, Aygo, Audi TT
just out of interest on this, when they checked mine it was JUST the bushes that needed doing BUT MB modified the bushes so that they are all one part, moulded onto the anti roll bar - this being the case I got a complete new anti roll bar (which included moulded bushes) - did they replace the whole bar for you?
Old 08-01-2007, 02:59 PM
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No I Just Changed The Bushes And Droplinks.my Merc Guy Confirms That Mb Have Modified Bushes And Bar Into One But You Can Still Buy The Bushes @£2 Each.
Old 08-01-2007, 03:02 PM
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Originally Posted by Mnymaker
I took my E320 in to the Benz dealer yesterday for the exact same thing since I only had about 1700 miles left on my warranty. I got the same answer "we drove it, put it on the rack, yanked on the tie rods, etc... and they dont have any play in them. we can't recreate the problem. All seems well." It was not 1 hour later I'm driving 10 mph in the neighborhood over some rough road area and bump, clump, thump. WTF??? How could they not have heard that? Unless they were driving 40 or 50mph and then you assume its just hitting a pothole hard because I have 19" wheels with low profiles on it.
THE BEST WAY TO DEAL WITH THEM IS TO MAKE THEM TEST DRIVE OVER A ****LOAD OF SPEED BUMPS,THATLL PUT THE MB TECHS RIGHT !!
Old 08-02-2007, 08:16 AM
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Originally Posted by Mpower-Uk
Hi

2002 C32 Amg,everytime i go over road speed humps,getting a knocking from the front underneath of the car.
Local dealer telling me it could be Anti Roll bar bushes/droplinks

Anyone with the same issue ?
any comments/guidance/advice.
The previous generation C class has this as a regular problem -
Old 08-04-2007, 11:17 PM
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2008 C63, 2002 BMW X5 4.4i
Everytime I go over speed bumps or slightly larger bumps, I get skiwshy sound in both of my front tires. Is this the same issue? I don't know if I need to change the bushings or the shocks all together. My car is lowered and I'm out of warranty, so I can't just bring it in for the techs to find out. Any clues or recommendations?
Old 08-05-2007, 12:07 PM
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C55 ///AMG, 535xi
my car has a knocking sound from the rear drivers wheel(i even took a video/sound clip on youtube!)

my dealers has changed.... front endlinks, sway bars+bushings, lower control arms, rear sway bar. it still has a slight knock. from the back. they told me it was the "aftermarket exhaust" hitting the top. I took a look at it, i dont think it was that!
Old 08-06-2007, 01:12 PM
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very common problem.

I had them replaced under warranty,

but the problem returned.

Its an easy fix that I'll do before I sell the car.
Old 08-06-2007, 07:16 PM
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W203 slightly modified
Originally Posted by Mpower-Uk
Hi

2002 C32 Amg,everytime i go over road speed humps,getting a knocking from the front underneath of the car.
Local dealer telling me it could be Anti Roll bar bushes/droplinks

Anyone with the same issue ?
any comments/guidance/advice.
- drop links on sway bar (they stick and then jump)
- thrust arm bushes
- wheel bearings
- sway bar bushes.
Old 08-06-2007, 07:19 PM
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W203 slightly modified
Originally Posted by advans
my car has a knocking sound from the rear drivers wheel(i even took a video/sound clip on youtube!)

my dealers has changed.... front endlinks, sway bars+bushings, lower control arms, rear sway bar. it still has a slight knock. from the back. they told me it was the "aftermarket exhaust" hitting the top. I took a look at it, i dont think it was that!
Check your rose joint for wear. With the car on a hoist the rear wheel would have a movement in the camber direction.

I had mine lubricated with teflon, the bolts tightened and more grease added to the bushes and found that all the noises vanished.

Last edited by benzmodz; 08-06-2007 at 07:23 PM.

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