BMW 3 E46 Crankcase ventilation oil separator

Crankcase ventilation oil separator for BMW 3 E46 — what you need to know

Finding the right crankcase ventilation oil separator for your BMW 3 E46 is essential for safe and reliable driving. We stock 53+ options from 18+ trusted brands, all with TecDoc-verified fitment for your specific vehicle.

When choosing crankcase ventilation oil separator for your BMW 3 E46, 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 crankcase ventilation oil separator listed on this page are confirmed compatible with BMW 3 E46. 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.