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      02-27-2020, 06:33 AM   #17
dianebrat
First Lieutenant
United_States
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Drives: 2019 orange x2 xDrive28i
Join Date: Dec 2018
Location: Boston'ish

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Quote:
Originally Posted by rice_rocket88 View Post
On my old 5 series it literally just turned the fan on. I used it to pre ventilate the hot air in the summer towards the end of the day. The problem is that it drains your battery, so doing it too much if you don't drive the car a lot in between just strains that battery. Interesting feature, but kinda useless to me, more downsides than bonuses.
As RR88 says, it just turns the fans on for a bit bringing fresh air in, nothing more.
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