Slight window noise

[dave123456]

Hi,

I have a Merc c43 2019. It has a slight wind noise from the window almost like the window isn’t fully closed, but it is.

Any ideas what might cause this and resolutions?

TIA

[Saleen836]

Check the side mirror is fixed nice and tight, if it isn't the seal around it can let air in and it will sound like the window is slightly open

[Scrump]

I had similar on an Audi many years ago. It turned out to be the rubber seal behind the mirror was not fitted correctly.

[E-bmw]

Not sure what yours are but some "pillarless" doors can occasionally sit "not quite right" on the seals causing this.

If yours are a close look might find a small gap on the seal round the window.