E-Class (W211) 2003-2009

4Matic Front Lower Control Arm Bushing??

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Old Nov 18, 2012 | 02:07 PM
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mkhurley's Avatar
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From: Clermont, FL
2007 E550 4-Matic, 2004 SL600
4Matic Front Lower Control Arm Bushing??

Does this bushing (A2103336814 bearing as they call it on EPC) have fluid in it?? It's a 2007 E550 4Matic and I have fluid on the garage floor right below this bushing, but when I remove the covers and check around, it's not coming from anywhere above it and there are no leaks anywhere. Motor mount is close but no fluid around it anywhere either. It doesn't smell like engine oil or trans fluid, really has no smell, it looks like oil but has the consistency of water.
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Old Nov 19, 2012 | 08:33 PM
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ozusa's Avatar
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From: PA, USA
2004 E320 4matic Sedan
Maybe the engine mount anyway.....

I don't know if the bush you refer to has a fluid filling

As you seem to know, the motor mount contains a fluid. I suspect it's liquid silicon and I would not expect silicon to much have an odor. My theory is that if the fluid escapes under pressure from the weight of the engine (i.e. it squirts) it can end up somewhere in the vicinity yet perhaps not on the mount itself. Maybe that's what's happening to yours. Just a thought.

Try this motor mount test, with a friend:

The mount would have to be seriously trashed for your engine to rock this badly!
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Old Nov 19, 2012 | 09:12 PM
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mkhurley's Avatar
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From: Clermont, FL
2007 E550 4-Matic, 2004 SL600
Thanks, I'll check that. Surprised they couldn't tell on that one in the video by the dent left in the hood.

The fact that they are calling it a bearing instead of a bushing makes me think it may have fluid in it, guess I'll be finding out soon. Also getting and ESP light now and then that I've read could be tied back to alignment or the turn angle sensor (or whatever), this bushing going could certainly cause a minor alignment issue.
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