Where is the BMW M4 Cabin Air Filter Located?

[Margaret]

BMW M4 cabin air filter is located under the wiper on the passenger side. To replace the cabin air filter, you need to open the hood. When driving with the air conditioning on, the car draws in outside air into the cabin, but this air contains various particles such as dust, pollen, soot, abrasive particles, ozone, odors, nitrogen oxides, sulfur dioxide, carbon dioxide, benzene, etc. Without the cabin air filter, these particles would enter the cabin, not only contaminating the car's air conditioning system and reducing cooling performance but also causing allergic reactions, lung damage, irritability from ozone exposure, and unpleasant odors - all of which affect driving safety. The replacement interval for BMW M4 cabin air filter depends on usage conditions. For typical urban family cars, it's recommended to replace it every six months or once a year.