new c300 road noise at highway speeds
Thread Starter
Newbie
Joined: Jun 2015
Posts: 3
Likes: 0
2015 C300
new c300 road noise at highway speeds
hi, i am new owner for a MB C300 and i have noticed that when i am going at highway speeds 100km/h, i hear road noise in the cabin. i am not able to determine what that sound is.
i have a theory though:
could it be the Run flat tyres making that *whooom* sound? and i have read that RFTs make sound.
just want to know if this is something that i need to get it checked or is it something that i have to live with?
i have a theory though:
could it be the Run flat tyres making that *whooom* sound? and i have read that RFTs make sound.
just want to know if this is something that i need to get it checked or is it something that i have to live with?
Senior Member
Joined: Jun 2015
Posts: 337
Likes: 7
From: North San Diego, CA
2015 C300
before i signed up on this forum, the entire front page was/is still full of posts regarding wind noise...did you happen to look at any of the 20 threads regarding this????
just effing with ya. but really, go check the threads here, plenty of supposed wind noise issues around here
just effing with ya. but really, go check the threads here, plenty of supposed wind noise issues around here
Senior Member
Joined: Jun 2015
Posts: 337
Likes: 7
From: North San Diego, CA
2015 C300
RFT's are definitely louder than the standard air filled, but it shouldnt be loud. run flats on my GTO were louder but most cars have so much wind noise (or in my case, exhaust rumble) that it wasnt noticeable under most conditions
but with the c300, the cabin is quiet enough that maybe you'd hear it more than a standard tire...i'll find out soon enough myself
but with the c300, the cabin is quiet enough that maybe you'd hear it more than a standard tire...i'll find out soon enough myself
Newbie
Joined: Jun 2015
Posts: 1
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From: Los Angeles, CA - USA
2012 C250 Coupe
I have 2012 C250 Coupe and also hear "road" noise - not "wind" noise. I've got 45K on the original Michelin Tires and am wondering if they are the culprit signaling the need to get new tires soon, but am not sure.
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Newbie
Joined: Jun 2016
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C250D W205
Road Noise
I also have a type of acoustic drone at higher speeds, also with RFT's, I at first thought it was a bearing in the transmission or otherwise, this was only with about 500KM since new, I promptly returned it to the dealer, and loaned a demo model of identical spec, it did exactly the same, thus I suspect it is either a characteristic of that car or the tires.
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MBWorld Fanatic!
Joined: Jan 2015
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From: Manchester, UK
BMW e89 Z4 sDrive 35i & MB S205 C200 AMG Premium Plus
Yes a road noise Howling is normal for this car and especially with run flat tyres. I notice it more on rough Tarmac. Smooth Tarmac lessens this howling noise a little.
