2004 C240 rear suspension noise - Mercedes-Benz Forum

 
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post #1 of 6 (permalink) Old 10-14-2008, 11:59 AM Thread Starter
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Post 2004 C240 rear suspension noise

I have a weird noise that i hear from my right rear suspension, it sounds like a metal part hitting a part of the muffer ( or a twanging noise from the spring ). The weird thing is that I only hear it when it rains or when I wash the car. I brought it to the stealership and they couldn't hear it, so I suggested them to wash underneath the car and true enough the sound came out and it sounds when you drive the car diagonally into a bump. I have a schedule with the stealership this Friday, and I'm wondering If anyone had experienced this and can I fix it myself? I would appreciate your help guys!
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post #2 of 6 (permalink) Old 10-15-2008, 01:52 PM
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Welcome to BW...Off you go to W203 Non-AMG Section...

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post #3 of 6 (permalink) Old 10-16-2008, 03:21 PM
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I had a bad bushing back there at 60k miles.

I didn't even know it was bad, until a tech told me, and made the noise.

It's probably a bushing.

2003 Mercedes-Benz C240 5AT - 72k miles
1999 Honda Accord EX-L 4AT - 143k miles
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post #4 of 6 (permalink) Old 10-23-2008, 12:02 PM Thread Starter
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I actually checked all the bushings and sprayed tremendous amount of ceramic lube in all suspension parts. The best thing that happened was the twanging noise disappeared. It still has the squeeking sound but that doesn't bother me as much as the twang. I also checked the springs to see if they are broken and they were fine.
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post #5 of 6 (permalink) Old 10-24-2008, 12:36 PM
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Im pretty sure this is the rear sway bar bracket bushings.... Ya can replace them OR spend <10 bux and buy some silicon grease and apply it... The spray only lasts so long. Usually the next rain will wash away the spray...
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post #6 of 6 (permalink) Old 10-26-2008, 07:04 PM
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Another thing that may cause a squeak in the rear suspension is where the brake cable enters the back plate. I sprayed the cable with Kleen-Flo Honey Goo, solved the problem.
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