E/W214: Humming sound at higher speeds
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2018 S63
Humming sound at higher speeds
I took deliveey of my E450 2 days ago and noticed a humming sound at speeds approximately > 70 mph. I muted any noise from the radio/CarPlay which is when I noticed the sound. I don't think that it is tired noise. I am surprised since I ordered the Pinnacle option that includes heat and noise insulated glass. Thanks.
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W214 E450
I took deliveey of my E450 2 days ago and noticed a humming sound at speeds approximately > 70 mph. I muted any noise from the radio/CarPlay which is when I noticed the sound. I don't think that it is tired noise. I am surprised since I ordered the Pinnacle option that includes heat and noise insulated glass. Thanks.
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Joined: Mar 2018
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2018 S63
It sounds more like road noise and not exhaust sound, especially since I had it in Comfort Mode and not Sport. It seemed to increase and the speed increase which makes me think of road/tire noise.
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2018 S63
Thanks for your response. I tried to record the sound on my phone which is attached. Not sure if you can hear that background noise, especially at the end of this shor video. Maybe it is just me.
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From: Tennessee
W214 E450
I was able to hear it. What's funny is I listened to it in my car on the audio system. Sounds like a higher pitch than a typical engine noise. Like air is running through something. Are you sure all the doors and windows are closed tight? Maybe the window stop is not calibrated properly and one is not all the way up. Or, if you have soft close doors maybe one of them needs calibration. Check the sun roof too. That's all I can think of. I definitely do not hear that in my car.
Last edited by L1Wolf; May 26, 2024 at 11:44 PM.
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Thread Starter
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Joined: Mar 2018
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2018 S63
I appreciate your impression which is a possibility. I will bring it back to the dealer tomorrow and see what they think. I hope that this issues doesn't turn out to be a problem where they keep my car there for weeks and still can't find the issue. I have read some of those horror stories on this forum.
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I appreciate your impression which is a possibility. I will bring it back to the dealer tomorrow and see what they think. I hope that this issues doesn't turn out to be a problem where they keep my car there for weeks and still can't find the issue. I have read some of those horror stories on this forum.
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2018 S63
Follow-up to my initial post. The problem was the tires as the Assistant Service Manager had suspected. 3 of the 4 Michelin tires failed a road force test so they replaced with 4 Pirellis and humming at higher speeds has resolved. But my issue is how does Mercedes allow these cars to leave the factory without inspection and testing of tires. Unacceptable especially when I am spending $90k for a car.
MBWorld Fanatic!
Joined: Aug 2014
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From: Tennessee
W214 E450
Follow-up to my initial post. The problem was the tires as the Assistant Service Manager had suspected. 3 of the 4 Michelin tires failed a road force test so they replaced with 4 Pirellis and humming at higher speeds has resolved. But my issue is how does Mercedes allow these cars to leave the factory without inspection and testing of tires. Unacceptable especially when I am spending $90k for a car.
MBWorld God!
Joined: Dec 2019
Posts: 32,224
Likes: 6,283
Follow-up to my initial post. The problem was the tires as the Assistant Service Manager had suspected. 3 of the 4 Michelin tires failed a road force test so they replaced with 4 Pirellis and humming at higher speeds has resolved. But my issue is how does Mercedes allow these cars to leave the factory without inspection and testing of tires. Unacceptable especially when I am spending $90k for a car.
