So, what is a “Stratification wheel” and why do you need it?

The word ‘stratification’ itself can be defined as the arrangement or classification of something into different groups. Air stratification is a common occurrence from our houses to our cars. The stratification wheel is something inside our BMWs that allows us to have the perfect temperature while driving.

A stratification wheel is a small wheel in your BMW that you might not even notice. If you are not paying attention, you might miss it because it can blend in so well. Chances are, you’ve only discovered your stratification wheel after you’ve come into the service department asking why your heat is on blast but only frigid air is coming out towards your face. The stratification wheel allows you to temper the air flow from the vent’s outlets by adding heating or cooling as desired. When you turn the wheel towards blue, it makes for colder air. When you turn the wheel towards red, it makes for warmer air.

The automatic climate control that your vehicle may be equipped with controls the temperature of the cabin air. The idea behind the stratification wheel is that it could provide a warmer or cooler flow of air to either your face or feet while driving. If you would like the cabin warm but would like some cooler, refreshing air on your face, you would adjust the stratification wheel. If you have any questions regarding your vehicle, please feel free to stop by BMW of Bridgewater Service Department!