Roaring sound when driving approximately 25 MPH

Tiny
BSLININGER
  • MEMBER
  • 2013 MERCEDES BENZ C250
  • 2WD
  • AUTOMATIC
  • 128,000 MILES
When I get to about 25 mph, there is a roaring sound. My car sounds like a jet engine to me.
Tuesday, August 4th, 2020 AT 6:49 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Does this sound like it is coming from a tire area or the engine area? This is most likely a wheel bearing but it could be the engine fan so we need to try to limit down where it is coming from. Also, once you start to hear the noise does it get better then worse when you swerve from side to side like you are trying to avoid a pot hole?

Here is a guide that will help with the understanding what could be happening:

https://www.2carpros.com/articles/whirring-sound

Let me know if you can get a recording of it and that should help as well. Thanks
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Tuesday, August 4th, 2020 AT 10:35 AM

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