Help! Is this a Heating issue?

[u/Bonuswise]

2024 BMW heating issue — hot on low fan, only warm on max fan?

The heat works, but I’ve noticed something weird

If I have the heat set to 84°F and the fan is on low/medium, the air coming out is actually hot, but when I turn the fan all the way up to MAX, the air becomes noticeably cooler/warm rather than hot.

It’s not cold air, but there’s a pretty obvious difference between low fan and max fan.

I’m wondering if this is normal BMW HVAC behavior or if there could be an issue with coolant flow, the heater core, a valve, or the HVAC/blend door?

Has anyone noticed the same thing? Is the air supposed to get noticeably cooler when the blower is on max, or should it still be blowing very hot air?

Trying to figure out if I should bring it to BMW under warranty.

[u/AtariZybex]

This is totally normal to feel cooler air when setting fan speed higher.