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Passenger seat shaking at high speeds?

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Old 04-22-2015, 08:27 PM
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C300
Passenger seat shaking at high speeds?

I have a 2012 C300 and I've noticed that whenever I get to highway speeds the passenger seat begins to shake. It's not just a mild vibration either, you can see it shaking. What could be causing that?

Also, my steering wheel has a very slight vibration to it. I'm not sure if something is wrong or if I'm just used to Lexus LS-like NVH levels.

It was just inspected my the MB dealer and the car has less than 12k miles.
Old 04-22-2015, 10:22 PM
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C300 Sport
Tires need balanced or you may a bent run from potholes
Old 04-24-2015, 01:56 PM
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Ejecto seato cuzz
Old 05-21-2015, 11:08 AM
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C300 4Matic Sport
Same thing happens to me. I believe my rear passenger rim was bent when I hot a pothole. I know its not an alignment bc I did that less than 4 weeks ago. Ill let you know by the weekend when I get the rim fixed if it solved the problem.
Old 05-21-2015, 06:49 PM
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2012 C300 4Matic Sport Sedan
Originally Posted by MsMathWiz
Same thing happens to me. I believe my rear passenger rim was bent when I hot a pothole. I know its not an alignment bc I did that less than 4 weeks ago. Ill let you know by the weekend when I get the rim fixed if it solved the problem.
ya i need to check mine over to from a similar issue but i went over train tracks hard
Old 05-22-2015, 03:23 AM
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2007 W204 220CDI Classic Sedan
My passenger seat shakes at high speed. I think it is her knees that cause it .
Old 05-22-2015, 02:15 PM
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I'm at the dealer buying a new tire. The current tire has a huge gauge and bubble. Luckily I didn't crack the rim. I must admit, I did hit the pothole pretty hard. I was actually thinking that in another 10 seconds my pressure sensor would go off and tell me I had no air, but it didn't, so I kept going! So yea....new tire expense coming down my ally.

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