[rgx3]

Now that the weather has been better we started driving with the sunroof fully open instead of just popped up. An interesting and annoying phenomenon has plagued my wife and I. With it fully open and the windows closed, pressure builds inside the cabin and a helicopter rotor like noise is produced and the pressure pulses actually hurt your ears. Cracking a side window allieviates this but then you get the increased noise from that. Has anybody else noticed this?

[X3msport]

I actually have had that happen with every car I have owned..... My x3 included.....

[Want the thrill]

Are you opening it past the standard comfort stopping point? If so, it will cause that to happen. I find as long as I leave it open to the regular stopping point, I don't get the uncomfortable ear pressure.

[DavC5000]

yep if u are going around town its ok but if u are going faster than ~40 u cant have it open past the first stopping point.

[Fryguy29]

This has also happened on every car with a sunroof I have owned. I just assumed it was the nature of the beast...

[Alligator69]

There's a very simple solution to this, very effective. I had the same issue with my previous 320d. Just slightly open one or two of the rear windows (less than a cm/half an inch) and you should be set.

In general you just need to find by playing a little bit with the four windows which is the one (or combination) that makes that annoying effect go away, without generating a disturbing airflow in the car. Much easier to try than to explain.

[dfcoelho]

As already mentioned:

- Open it only until the first stop (confort position). If it doesn't stop there automatically, refer to the owners manual to how to recalibrate the sunroof operation;

Or:

- Open a little bit the windows in the back until the pressure ressonance disappears.

Regards

David

[MetaX]

The same can happen with having your windows open at just the right amount at the right speed to cause the resonance even if you have the sunroof closed or don't have one at all...

[nyalpine90]

yes i have experience this issue as well..first positon of sunroof where its not open fully, you wont hear the noise but if u open it all the way u get that chopper noise lol. i usually keep it first position


i will attempt to try open rear window when sunroof is fully open see how that goes

[Blue Bottle]

First position is fine for ventilation. All cars have the same issue with roof fully open

[thefreeze]

I noticed yesterday that the "phenomenon" starts at around 80 km/h (50 mph) and disappears again at a speed of 120 km/h (75 mph). So either you stay at legal speeds or move to Germany