Clunk In The Front End

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Dec 18, 2014 | 11:59 AM

Mikephinney

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Joined: Sep 2013

Posts: 129

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From: So Cal

2012 C250

Clunk In The Front End

I took my '12 250 in for service due to a clunk in the front end when backing up and turning, which to my suprise, they were able to reporoduce by backing up in a figure eight pattern. Here is what was replaced:

4 211-333-06-97 ELASTOMERIC CUP
2 204-333-11-14 HYDROMOUNT
4 000000-003281 NUT
331426 BUSHINGS ON BOTH STRUT RODS REPLACE

38075 performed LI 33.15-P-047471 thrust arm bushings worn/noise

Found LI33.15-P-047471 applicable to this vehicle.

my question is what does this last number indicate? what is an Elastomeric cup, and what is an Hydro mount?

Dec 18, 2014 | 01:03 PM

capt_paul

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Joined: Oct 2004

Posts: 1,305

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From: Las Vegas, Nevada

2013 C350 Coupe, 2005 C230K Kleemann Sedan, 2013 GLK350 4matic

Quote:

Originally Posted by Mikephinney

4 211-333-06-97 ELASTOMERIC CUP
2 204-333-11-14 HYDROMOUNT
4 000000-003281 NUT
331426 BUSHINGS ON BOTH STRUT RODS REPLACE

The suspension components have a silicon filled bushings. Sounds like they replaced all the steering bushings with new ones. The last number is probably a service campaign, which isnt serious enough to warrant a full-on recall

Dec 18, 2014 | 03:59 PM

Mikephinney

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Joined: Sep 2013

Posts: 129

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From: So Cal

2012 C250

The service campaign is probably correct.

I wonder if others had had this issue as well? for there to be a campaign it sounds like it may be a common issue.

Anybody else hearing a clunk or other noise while backing up with the wheel turned, or out of a driveway?

Dec 18, 2014 | 04:59 PM

EvolutionDrock

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Joined: Oct 2013

Posts: 125

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From: Miami, FL

2013 C250

I have the same issue 2013 c250. Backing up from my drive way I hear the clunking noise from front passenger side. Just dropped off my car at the dealer 2 days ago. No news as of yet. Plus I've been having weird issue with fluctuating rpm needle.

Dec 19, 2014 | 11:19 AM

Mikephinney

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Joined: Sep 2013

Posts: 129

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From: So Cal

2012 C250

Quote:

Originally Posted by EvolutionDrock

The noise I heard seemed to be coming from the passenger side as well. If they tell you that nothing is wrong, point them in this direction. However, the fact that they have had it for two days tells me that they may have found something. They are usually pretty quick to tell you that there's nothing wrong.

Good luck

Dec 29, 2014 | 05:54 AM

Aitm908

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Joined: Dec 2014

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2013 c300 4matic

2013 c300 4matic clunk noise also

I will be taking it to the dealership today! Thank you for this great post. Will see if they can find it as well and fix. If not will give them this info

and let you all know if resolved

Jan 6, 2015 | 02:21 AM

VVF

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Joined: Sep 2011

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From: Austin, TX

2005 C230K(sold), Mk7 Jetta

Common problem since w203 era...
https://mbworld.org/forums/attachmen...trol-20arm.jpg

Those dam bushings crack and leak fluid after about 30k miles.

Elastomeric cups are just some rubber cups to protect the bushings from elements.
They only replaced 2 upper control arm bushings since it's what usually goes bad.

Last edited by VVF; Jan 6, 2015 at 02:24 AM.