Interior air filter for BMW 3 (E21) 1975–1984 320 | CP247

Interior air filter for BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20 — what you need to know

Finding the right interior air filter for your BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20 is essential for safe and reliable driving. We offer a wide selection from 24+ trusted brands, all with TecDoc-verified fitment for your specific vehicle.

When choosing interior air filter for your BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20, consider factors like OEM vs aftermarket quality, material specifications, and your driving conditions. OEM parts match original specifications exactly, while premium aftermarket brands like Bosch, TRW, and Febi Bilstein often offer comparable quality at lower prices.

All interior air filter listed on this page are confirmed compatible with BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20. Our fitment data is sourced from TecDoc, the industry-standard European automotive parts database. If you are unsure about compatibility, check the OE part number on your existing component and use our cross-reference search.