E-Class (W211) 2003-2009

Need your help! E500 Clunk....

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Old Nov 11, 2019 | 07:26 PM
  #1  
E500Man87's Avatar
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e500
Need your help! E500 Clunk....

I knew this day would come - the day I need all of your help.

Both forward and reverse has an intermittent (as in not constant but frequent enough to know there is a problem after moving 5 feet).

Car: 2004 E500 4Matic Sedan
Mileage: 156K
Note: Amazing car - albeit expensive (what isn’t?) but it has never left me stranded and is an absolute tank

Without leading the witness as to what I have tried replacing etc.. I will give you the scenario. First, so I can feel better about the money and inordinate amount of time that just went bye bye (at least in terms of trying to address the issue). Secondly, before dropping more dough and sweat, I want to hear what you think it could be.

Scenario: Drove 3 hours to airport - no issue. Return 3 days later from my business trip to a wet parking garage and pull out of my spot and hear a slight clunk. Something not quite right but I chalked it up to wet concrete bc I had a 3 hour drive ahead of me (nice logic, huh?). Anyways, I successfully make the drive without issue. Next morning, I wake up and go to back the car out and the clunk is notable enough that I wouldn’t drive the car. This exact issue persists today but I don’t know what is causing it. I have a few suspicions but want to hear from you. I’ll provide further input as you need it.

Let’s keep this bad boy on the road for another hundo. At this rate, no road, no miles and a city bus
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Old Nov 11, 2019 | 11:00 PM
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cetialpha5's Avatar
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2008 E350 4Matic, 2011 E350 4matic
You just need to get it on a lift and get it checked out. There's things like the Guibo flex disc, there's the supports for the driveline and lots of other possibilities for suspension issues.
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Old Nov 12, 2019 | 07:07 AM
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Yes. Thinking could be the flex disc or bearing as well. Because my inner and outer passenger CVs were bad, I replaced the axle. Listening closely it does seem the noise is coming from front to mid of car which is why I’m thinking flex disc. However, would that have the symptom of a bad u-joint?

Lower ball joins are new. Checked the entire front suspension out and all appears to be in decent shape. I would say great shape given the mileage but the car has been cared for.
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