What is the microfilter in a BMW?
A microfilter, also known as a cabin air filter, filters reduce harmful fumes from entering the cabin of your BMW. Microfilters trap up to 80% of pollen and traffic fumes before they make it to the driver.
What is a microfilter BMW 7 Series?
A fresh E65 7-series cabin air filter (also known as a microfilter or heppa filter) will allow you to breathe easier, and healthier, by effectively filtering out impurities through your HVAC system. A yearly replacement of your microfilter will ensure dust, pollen, soot, and pollution stay out of your BMW’s interior.
Do I need to change the microfilter BMW?

The microfilter replacement interval should definitely be in the Service menu, it’s the one with a filter symbol and a fan (or a “colander”). Generally the replacement interval is every 2 years or a heckuva lot of mileage.
How often do you change a micro filter on a BMW?
Generally speaking, you should change the cabin air filter in your BMW every 15,000 – 20,000 miles.
How much does a BMW microfilter cost?
Just buy the Mann filter for BMW, as this is the same product but only $17 each.

What does a car microfilter do?
Heating, air conditioning or automatic air conditioning Replace micro filter/carbon canister – this is important because micro filters trap 80% of the pollen and traffic fumes before it gets into the cabin, helps keep drivers and passengers alert and help demist windows quickly even on a rainy winters day.
How much does microfilter cost?
When you have smaller flows, like 10 or 20 GPM, your costs can be under $100,000 on a typical front-end system. A smaller high-end system you might use for a power plant for 100 to 200 GPM, might be $450,000, whereas a commercial version might be $250,000 for 150 to 200 GPM.
What is microfilter?
A microfilter is a device that allows broadband to work at the same time as your phone service. Without microfilters you may get problems with your BT Broadband or hear noise on your phone line.
Is microfilter same as cabin filter?
Microfilter is the pollen/cabin filter (same thing), not the air filter.
How do you reset the microfilter light on a BMW?
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 the BMW microfilter reset interval.
How do I know if I need a microfilter?
You must use a microfilter for every phone socket in your home with any phone or broadband equipment plugged in (including your Hub, phones, answer machines, digital TV boxes, and alarm systems). You must always plug your Hub into the broadband connection on your master socket.
What is a car microfilter?