Genuine 11157513756 Engine Crankcase Breather Hose

BMW Crankcase Breather Hose

This Genuine engine crankcase breather hose is a direct-fit emission control component for the crankcase ventilation system. It routes vapors between the intake manifold and valve cover to support proper crankcase ventilation on select BMW 325Ci and BMW 325i models.

• Genuine OE replacement part
• Engine crankcase breather hose for the crankcase ventilation system
• Direct routing between the intake manifold and valve cover vent
• Fits 2003-2006 BMW 325Ci, N/A
• Fits 2003-2005 BMW 325i, N/A
• Part number 11157513756

Detailed Description

Built for emission control service, this breather hose helps maintain the intended path for crankcase vapors in the BMW crankcase ventilation system. It is a fitment-specific replacement for 2003-2006 BMW 325Ci and 2003-2005 BMW 325i applications, with the noted intake manifold to valve cover vent routing. If you are replacing a cracked, hardened, or leaking hose, 11157513756 provides the correct OE-style service part for these BMW 3 Series models.

Common Repair Symptoms

• Oil vapor leaks around the crankcase ventilation hose
• Cracked or brittle hose material
• Vacuum leaks affecting idle quality
• Unmetered air entering the intake system
• Breather routing issues between the intake manifold and valve cover

Installation Notes

Verify the hose routing before removal and compare the old part to the new one for the intake manifold to valve cover vent layout. Inspect nearby crankcase ventilation components, seals, and vacuum connections during service. Confirm fitment by model year and engine configuration before installation.

Quality Assurance

Genuine parts are produced to OE specifications for the listed BMW applications. Part number 11157513756 is cataloged for direct replacement use on the confirmed fitment shown above.