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Old 05-05-2008, 06:00 PM
E_S E_S is offline
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Join Date: Jan 2008
Location: Norway, Europe
Posts: 80
Engine noise "transmitted" to body - why?

Around some certain rpms, a real resonance and vibration occurs in my car. (W124, the one in my signature) I was thinking the engine mounts were shot after 16 years and replaced them. It made a difference, but did not change anything about the noise level. I've double-checked that the exhaust does not touch the body and the heat shields does not touch the exhaust. The noise is not exhaust noise, it's clearly a resonance and noise from the engine.

I can't figure this out other than the rear transmission mount. Any opinions? Right now, the car is as noisy inside while doing highway driving as an 70s econobox..

'96 E300TD (124.191)
'95 E36T AMG (124.092)
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Old 05-06-2008, 02:16 AM
Registered User
Join Date: Sep 2003
Location: France
Posts: 487
May be rear subframe and differential bushings
Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8,[/B] 50 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 245000km

Son's one: GLK class 220CDI, 2009, W204

Sold E class 260E, W124, 1988 beloved car sold after 489 000 kilometres of reliable services (engine M103, clutch and 5 speed manual gear box all original).
E-class, W210 320CDI, 2000[/B], 225 000km, Sold
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Old 05-06-2008, 04:01 AM
E_S E_S is offline
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Join Date: Jan 2008
Location: Norway, Europe
Posts: 80
Rear subframe bushings are brand new, so I doubt they are the problem.. What about the driveshaft center support?
'96 E300TD (124.191)
'95 E36T AMG (124.092)
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Old 05-06-2008, 11:37 AM
JimFreeh's Avatar
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Join Date: Mar 2007
Location: Hampton Roads, Virginia
Posts: 3,353
If your trans mount is as old as the engine mounts, replace it.

14 E250 BlueTEC black
94 E320 Cabriolet Emerald green
85 300TD 4 spd manual dark blue
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Old 05-06-2008, 11:42 AM
Dee8go's Avatar
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Join Date: Apr 2006
Location: Arlington, VA
Posts: 7,190
Yeah, I was going to ask if you changed the tranny mount at the same time. You didn't mention that.

" The market, like the Lord, helps those who help themselves. But, unlike the Lord, the market does not forgive those who know not what they do."- Warren Buffett

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1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
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