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Old 09-07-2007, 11:43 AM
spugeddy spugeddy is offline
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Join Date: Nov 2006
Location: FL
Posts: 507
Unhappy noise

I have an intermitant noise that is a rythmic clunking coming from the driver far rear, sounds like the muffler/exhaust area.

It happens once driving every few weeks, but once it starts it doesn't stop until I come off the go pedal, or stop. I have thought it was the muffler banging the underbody until today, when I was driving with it thumping, it sounded more like the noise was in tune with the rear wheel turning speed. IN other words it increased and decreased with the rotation of the wheel I thought. But coming off the pedal it would stop.

In my 45 minute commute I only heard it start the last 10 minutes...

Quote:
Originally Posted by Ether View Post
On my 116 300SD I recently noticed a rattle coming from my exhaust. I found one of the rear rubber donuts had broken so I replaced it along with its mate but turns out that wasn't the issue.

Further investigation found 2 missing bolts on the horizontal arm on the pipe forward of the 1st muffler that attaches to the assembly adjacent to the transmission oil pan.

I've never paid much attention to this mount but it sure has my attention now!

It looks to me that 2 bolts attached this arm to the mount but they are now gone. Does anyone know the size of these bolts? I'm thinking I should be able to go to the hardware store and get the proper size and length bolts and nuts and be good to go.

Anybody ever had to deal with this issue?

Thanks
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