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Rattling inside the steering wheel

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Old Jun 28, 2018 | 10:46 PM
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Kentzo's Avatar
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2018 C300
Rattling inside the steering wheel

A couple of days after I got the car (2018 C300, CPO) I noticed odd rattling inside the steering wheel. It mostly rattles only when I drive over bumps.
Attached a video that demonstrates the problem. Notice the sound when I tap on the lower left quoter.

What could it be?
Attached Files
File Type: mov
rattling.mov (3.09 MB, 709 views)

Last edited by Kentzo; Jun 29, 2018 at 12:03 AM.
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Old Jun 28, 2018 | 11:06 PM
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‘15 C300 4M Sport, ‘20 GLC300
That would bother me. Did you try pressing down on stuff like the brushed metal part or button pads? Maybe shimmy the horn a little bit. Check the paddle shifters too.
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Old Jun 29, 2018 | 02:14 AM
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Originally Posted by GreekUPS
That would bother me. Did you try pressing down on stuff like the brushed metal part or button pads? Maybe shimmy the horn a little bit. Check the paddle shifters too.
Yes I've tried that. The noise doesn't seem to come from any of them.

I also mentioned that to the dealer while they were repairing the rear power window button and the only reply I got was "not a safety issue". I assume they at least took the airbag off.

Is the steering wheel itself hollow? Would it be possible for a piece of plastic or metal to fall inside?
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Old Jul 3, 2018 | 08:02 PM
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My dealer managed to fix it: the problem was caused by remains of the original wrapping.
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Old Jan 17, 2023 | 09:11 PM
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Sorry to revive old thread but this sound resembles a rattle I have in my steering. Do you know what they removed or where?
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Old Jan 17, 2023 | 09:18 PM
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Originally Posted by cls5504matic
Sorry to revive old thread but this sound resembles a rattle I have in my steering. Do you know what they removed or where?
I would remove the wheel and see whats in there. not much holding it in
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Old Jan 17, 2023 | 09:48 PM
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Originally Posted by cls5504matic
Sorry to revive old thread but this sound resembles a rattle I have in my steering. Do you know what they removed or where?
Nope, they did not tell me
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