CLS350D noise

[VasFlo]

Hello everyone, I'm new on this group.
Recently i purchased a CLS350D 2015,
I noticed my car is making a noise like a whistle, and is getting louder when I drive on motorway, is not coming from the turbo, is more like air intake. I can hear it after 3 seconds when i start the car in the morning... Even when i drive in city i can hear it.. Is very annoying, anyone else have this problem? Before i get it booked to a garage. Thank you

 

[ssheikh93]

Have you opened your bonnet? If so where does it sound like it's coming from? Is it quite obvious from inside the car?

 

[VasFlo]

Have you opened your bonnet? If so where does it sound like it's coming from? Is it quite obvious from inside the car?

Yes i open the bonnet everyday, but still can't figure out what's the problem, sound like air intake

 

[Dean Fletcher]

Do you hear it more when you put your foot down?

 

[VasFlo]

Do you hear it more when you put your foot down?

No mate, today I listen again on motorway, is getting a bit louder when i go down hill, when i go uphill is not that loud, which result is not turbo, because if was the turbo noise will be when I put pressure on the car... I'm really confused, today I start thinking maybe is from the tyres.. Because is low budget tyres that's how i bought the car, good condition but not premium tyres. But i doubt is the tyres...sound more like engine plane that sound when take off

 

[ssheikh93]

No mate, today I listen again on motorway, is getting a bit louder when i go down hill, when i go uphill is not that loud, which result is not turbo, because if was the turbo noise will be when I put pressure on the car... I'm really confused, today I start thinking maybe is from the tyres.. Because is low budget tyres that's how i bought the car, good condition but not premium tyres. But i doubt is the tyres...sound more like engine plane that sound when take off

So it doesn't make a noise when you are idle? Any tyre issues would be when you're on the move

 

[VasFlo]

Hope you can hear it

 

[VasFlo]

So it doesn't make a noise when you are idle? Any tyre issues would be when you're on the move

New video by Black Series

photos.app.goo.gl

 

[steveq]

It sounds like it could be one of the pulleys- maybe the water pump.
You could take off the serpentine belt and see if it stops. You will get warnings on the dash but it should be OK for a few minutes.

 

[Dean Fletcher]

New video by Black Series

photos.app.goo.gl

As above sounds like a pulley.