Hose Breather Oil Seperator (N42 N46) (BMW 1 Series E81/E87 / 3 Series E46 / E90 / X3 E83 / Z4 E85/E86) is a mechanical part designed to manage oil vapors within the breather system of specific BMW engines. This unit helps separate oil particles from the blow-by gases before they re-enter the intake system, thereby reducing oil contamination and maintaining cleaner engine operation.
This breather oil separator is intended for fitment on BMW models equipped with N42 and N46 engines, including the 1 Series E81/E87, 3 Series E46 and E90, X3 E83, and Z4 E85/E86. When replacing this part, compare it directly with the old unit for compatibility, noting the engine type and its mounting location within the breather hose system. Proper function of this component is critical to controlling oil vapor flow and preventing oil buildup inside intake components.
Buyers should check their vehicle’s engine code and model to confirm match, as this part is vehicle and engine specific. This listing for the Hose Breather Oil Seperator offers a replacement option for maintaining the breather system’s efficiency. For exact fitment or alternative parts, submitting a Request a Part query or consulting the Sales Desk can help ensure correct sourcing.
If this repair may need matching clips, brackets, lights, panels or more than one part, check more Oil, Quick Repair Bundle or Request a Part before ordering.