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BMW X5
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04-14-2026LAST POST
04-13-2026
My 2023 X5M Competition develops a whistling noise on the driver's side when it gets up to 85-90 km/hr. I have been trying to diagnose it for a while and haven't been able to figure it out. It sounds like something is just not sealing right but I don't have any issue with water getting in the vehicle. I have carbon mirror caps but they seem to be fitting without issue so I don't think it's coming from there. Anyone else dealt with this?
04-13-2026
have you tried swapping back to the OEM mirrors to see if it happens? could be something slightly off with the carbon mirrors causing it
04-14-2026
Check the weather strip on the sunroof...do you have a gap? If so, take it in and tell the SA you have a gap and experiencing wind noise. If still under warranty - it will be a covered repair. Ask me how I know... :)...check the gap I had on my weatherstrip...

55206220233_f5f5668bee_b.jpg
04-14-2026
Cobra_X5MC wrote
have you tried swapping back to the OEM mirrors to see if it happens? could be something slightly off with the carbon mirrors causing it
They are OEM carbon mirrors from factory. I don’t think they are the issue as the fit seems fine.
04-14-2026
MADBMWX5MC wrote
Check the weather strip on the sunroof...do you have a gap? If so, take it in and tell the SA you have a gap and experiencing wind noise. If still under warranty - it will be a covered repair. Ask me how I know... :)...check the gap I had on my weatherstrip...

55206220233_f5f5668bee_b.jpg
Sheesh! That’s a gap. Checked mine out tonight. Didn’t see anything like that on my sunroof.
04-14-2026
Yup. A bit more than 1/4 inch...that's the pic I sent to my service advisor which triggered complete strip replacement.