Every time you replace the cabin (a/c) air filter or also known as microfiler, you need to reset the service light to remove the warning message on dashboard. It is possible to reset BMW microfilter reminder via the instrument cluster. Watch the video below to learn how to reset BMW microfilter interval via the instrument cluster.
Insert the key in the ignition and turn it to position II or until all the dash lights are on. In case of a smart key, insert it into the ignition. Press the "Engine Start/Stop" button without pressing the brake pedal.
Wait for the service warning light to disappear.
Press and hold the trip odometer reset button on the instrument cluster.
Wait for one of the service lights to appear. First, you should see an orange triangle after that you will see oil can or air filter symbol.
Toggle the trip odometer reset button until you reach "Cabin Filter."
Press and hold either the trip odometer reset button or the "BC" button at the end of the stalk to reset the interval.
MLS will change to -31000. You have now reset BMW microfilter reset interval.
It may take a few tries before you are able to complete the reset successfully. Let us know if these instructions worked for you or if you used a different method to reset microfilter light on BMW.