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Old 08-05-2012, 12:49 PM   #1 (permalink)
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Date registered: Jul 2011
Vehicle: 1995 E320 Wagon "Bernie", 1985 280SE Euro (RIP)
Location: New York
Posts: 35
knocking/clunking from front end

My 1985 280SE euro (w126 body and a mixture of other chassis) has a terrible knocking maybe clunking sound when the brakes are applied or when i go over bumps or uneven dirt roads. I just changed my brake rotors and pads but the noise is still there. Is it safe to drive around with it the way it is?
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Old 08-05-2012, 01:21 PM   #2 (permalink)
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Date registered: Feb 2011
Vehicle: 1989 560SEL
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Inspect your control rod mounts (aka axle joint support). Torn boots are a good sign that they're in need of replacement.



As far as I've learned, faulty control rod mounts don't make driving the car any less safe, but leaving it as is most obviously ruins the quality of the ride and maybe accelerates wear of front end components.

Last edited by NelsonM; 08-05-2012 at 01:24 PM.
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Old 08-05-2012, 01:46 PM   #3 (permalink)
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Vehicle: 1995 E320 Wagon "Bernie", 1985 280SE Euro (RIP)
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Are they also called the guide rods? And do you think the w126 part would fit my mish mosh euro Benz?
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Old 08-05-2012, 02:09 PM   #4 (permalink)
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The guide rod is an actual rod that the mount cushions against the bearing bracket; the rod and the mount are separate components. The 280SE is a W126 and the guide rod mount for the chassis is universal across all models.

https://mercedessource.com/node/1294

There are cheaper places to buy replacements online—the link above is just to give you a general idea of what the problem might be and what you will need if that's your problem. There are many DIY tutorials here and elsewhere on how to replace these yourself. It's supposedly a somewhat laborious task, but the process can be made easier with the right tools.

Last edited by NelsonM; 08-05-2012 at 02:26 PM.
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Old 08-05-2012, 02:10 PM   #5 (permalink)
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Quote:
Originally Posted by mwrobel24 View Post
My 1985 280SE euro (w126 body and a mixture of other chassis) has a terrible knocking maybe clunking sound when the brakes are applied or when i go over bumps or uneven dirt roads. I just changed my brake rotors and pads but the noise is still there. Is it safe to drive around with it the way it is?
Most likely broken rt. and lft. away bar bushing. Cheap to buy but difficult to install. But you can do that.


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