I get it is personal preference but a luxury car should be providing temperature + humidity controlled air filtered by activated charcoal filters all day every day. But to answer OP, you can code it off to stay off each time you start your car. This can actually do the opposite and fog ...
on my 2014 335 it did the same you'd have to code that off. however in my new 2018 340 it starts with however i turn the car off. so if its off, turns on off. If its left on, it turns back on, ON. Appreciate0 Quote