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This product was last offered at the strikethrough price on
03-17-2026
Rein Crankcase Breather Valve | BMW E39 E52 S62 5.0L Engine is a high-quality replacement designed to address common crankcase ventilation issues in BMW engines. A failing breather valve can lead to excessive oil consumption, vacuum leaks, and even freezing in colder temperatures, causing performance issues and potential engine damage. This direct-fit replacement effectively regulates the removal of oil vapors, preventing system failures and ensuring smooth engine operation. For optimal results, it is recommended to replace all related oil separator components simultaneously.
Crankcase Vent Valve - Rein - BMW E39 M5 E52 Z8 is a crucial component for maintaining proper crankcase ventilation and preventing harmful oil buildup in the engine. Over time, the vent valve can become clogged with oil, leading to excessive crankcase pressure, poor engine performance, and increased carbon deposits. A failing valve can result in rough idling, misfires, and blue smoke from the exhaust. Replacing the crankcase vent valve at regular intervals ensures optimal engine efficiency and longevity.