Genuine 11157522931 Engine Crankcase Breather Hose

Reliable Engine Crankcase Breather Hose for BMW Models

The Genuine Engine Crankcase Breather Hose, part number 11157522931, is designed to maintain proper ventilation within your BMW's engine crankcase. This component is essential for models including the 325i, 325xi, 330i, 330xi, 525i, 525xi, 530i, 530xi, and Z4, ensuring efficient emission control and engine performance.

• Compatible with BMW 325i, 325xi, 330i, 330xi, 525i, 525xi, 530i, 530xi, and Z4 models
• Genuine part number 11157522931 for precise fit and function
• Engine crankcase breather hose designed for emission control systems
• Durable construction to withstand engine heat and pressure
• Maintains proper crankcase ventilation to reduce emissions and engine wear

Product Details and Functionality

This Genuine crankcase breather hose plays a critical role in the emission control system by allowing gases to escape from the engine crankcase while preventing contaminants from entering. It helps maintain optimal pressure levels inside the crankcase, which supports engine efficiency and longevity. The hose is engineered to meet OEM specifications, ensuring compatibility and reliable performance across the specified BMW models.

Common Issues Addressed by This Breather Hose

• Prevents excessive crankcase pressure buildup that can cause oil leaks
• Reduces engine emissions by properly venting blow-by gases
• Helps avoid rough idling or engine performance issues related to ventilation
• Minimizes contamination of engine oil by filtering crankcase gases
• Supports overall engine health by maintaining correct ventilation flow

Installation Notes and Tips

When installing the Genuine 11157522931 crankcase breather hose, ensure the engine is cool to avoid injury. Inspect the hose routing and connections for any signs of wear or damage before replacement. Properly secure all clamps and fittings to prevent leaks. Refer to the vehicle’s service manual for torque specifications and detailed installation procedures specific to your BMW model.

Quality Assurance and Warranty

This Genuine crankcase breather hose is manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided, Genuine parts typically adhere to OEM quality requirements, offering reliable service life when installed correctly and maintained as part of regular vehicle upkeep.