Where is the cabin air filter located in a BMW 3 Series?

[DelOscar]

The cabin air filter in a BMW 3 Series is located beneath the glove compartment on the passenger side. Below is relevant information about the cabin air filter: 1. Application scope of air filters: An air filter is a type of filtration device. It is primarily used for air filtration in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operation rooms. 2. Consequences of unfiltered air: When an engine operates, it needs to intake a large volume of air. If the air isn't filtered, airborne dust particles drawn into the cylinders will accelerate wear on piston assemblies and cylinder walls. Larger particles entering between pistons and cylinders can cause severe "cylinder scoring," particularly in dry and sandy working environments. 3. Function of air cleaners: Installed in front of carburetors or intake pipes, air cleaners serve to filter out dust and sand particles from the air, ensuring that sufficient clean air enters the cylinders.