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Old 07-03-2003, 11:00 AM
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Join Date: Dec 2002
Location: New Jersey
Posts: 218
Rattle in rear?

Hearing a strange rattle in the rear of my 1983 300SD. Cleared the trunk and made sure the spare was secure. Still happens. What would be the next area to check? Shocks?

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Old 07-03-2003, 11:45 AM
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Join Date: Aug 2002
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Sway bar end links are real popular of a rattle in back. Actually my 84 could use some, they go from the sway bar to knuckle I believe. If they are indeed bad get the upgaded version, not another plastic one.
Jeff M.
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Old 07-03-2003, 01:57 PM
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I second the motion on the end links. My plastic ones are holding up ok so far.
'85 300SD (formerly california emissions)
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Old 07-03-2003, 02:46 PM
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Top end of one of the rear shocks was loose on mine. It was causing an annoying little rattle at low speeds. Missing muffler donuts is another possibility.

2004 C240 Wagon 203.261 Baby Benz
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Old 07-03-2003, 04:34 PM
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Location: New Jersey
Posts: 4,239
Yeah, I had a rattle that I couldnt find anywhere. I shook on the wheels, etc and thought maybe my diff was on the way out. I then saw the link bushings were rotted out, replaced the two links and its a-ok...

Current Diesels:
1981 240D (73K)
1982 300CD (162k)
1991 350SD (113k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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Old 07-03-2003, 10:27 PM
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Join Date: Oct 2002
Location: Noblesville, IN
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Have you had the rear seat out recently? I had an annoying rattle that I could not find until I removed the seat again and, after replacement, the rattle was gone. It sounded like it came from the trunk but was the seat.

I've also had strange rattles caused by the exhaust hangers.

2000 SL500 22,000 miles
1981 300CD 188,000 miles
1979 450 SEL 266,000 miles
2005 Cadillac CTS 25,000 miles
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Old 07-03-2003, 10:37 PM
MVK MVK is offline
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Join Date: May 2002
Location: Queens, NY
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Its mostly the sway bar end links. They are about 8-10 bucks each for the plastic ones. I changed them on mine after 169K miles and I think I dont mind doing it again after another 100K +

Also dont rule out the rear sway bar mounting bushings. The bracket might have come out loose ot the bushing there might have been rotten.

Just for your info 10 bucks a piece is not a bad deal considering on my 1994 camry, the same metal version of it costs about 70 bucks each. They are very easy to change and oh boy what a difference it make in rear end handling. If in doubt, just change them anyway this way you have the cheapest problem out of your way. Just my thoughts.

One penny saved is three penny earned.

1985 300D Turbo 179,000miles
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Old 07-04-2003, 03:11 AM
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Location: New Jersey
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Thanks guys Today is the fourth and after my fishing trip I will take a look at the bushings. Have a great holiday.

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