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  #1  
Old 06-18-2010, 11:31 AM
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Join Date: Dec 2003
Location: Palm Springs, CA
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Rear end noise or?

I've noticed a road noise on my '93 300CE at 75-80MPH. It happens only on sweeping turns to the right on the freeway. Never to the left. And you have to be on the gas. At first I thought it was a tire tread noise so I rotated the tires. Still there. So guys, am I hearing a front or rear wheel bearing noise, a differential noise or a power steering pump problem?
Thanks,
Anziani
'93 300CE 180K
'95 E420 120K

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  #2  
Old 06-18-2010, 12:10 PM
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Does the car have ASR?

Does the warning triangle in the speedo come on then as well?

IF no, then the wheel bearing is the most likely issue.
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  #3  
Old 06-18-2010, 03:37 PM
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Location: Palm Springs, CA
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The car has ASR but the light is not on (except for taking a corner faster than prudent).

If a bearing would it be the front end or rear end? On the other hand, maybe it is time to change them all.
Thanks Doc
Anziani
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  #4  
Old 06-18-2010, 07:07 PM
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Join Date: May 2007
Location: Arizona
Posts: 757
Could it be collapsed or worn motor mounts? I had a similar problem. It was kind of a groaning sound that happened only at higher speeds while making a turn in one direction (I can't remember which). After I replaced the motor mounts, the sound went away. Maybe it was the fan hitting the shroud. I don't know, but it stopped now.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles

Last edited by emerydc8; 06-18-2010 at 07:58 PM.
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