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Old 04-20-2005, 09:22 AM
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W126 - Metal Groaning sound in Exhaust area on Right turn

My 1990 300SE makes a strange noise, like the metal groaning in Titanic (!), when I make a sharp right turn like in a 270-degree cloverleaf exit. It's very disturbing but I have heard this can occur simply from compressed air in the exhaust. Is this just something I can fix with a new muffler?

Thanks,
Pete

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Pete Bassett
1990 300SE, 238K Miles

Last edited by pbassett2223; 04-21-2005 at 04:39 PM.
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Old 04-20-2005, 10:03 AM
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Location: Baton Rouge La
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are all of your rubber mounting donuts in place?
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Old 04-20-2005, 12:21 PM
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As the engine mounts start to sag it allows the exhaust system to come in contact with the underbody cross member. If you look closely you'll see exactly where it's hitting. If this is the case replacing the engine mounts will cure the problem.
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Old 04-21-2005, 09:18 AM
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W126 Engine Mounts

Thanks! I'll look tonight.
BTW, is this a DIY job?
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1990 300SE, 238K Miles
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Old 04-21-2005, 12:17 PM
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Yes. In my opinion, the 300SE (126) may be the most DIY friendly MB ever built in the modern era.

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