Genuine 11157567801 Engine Crankcase Breather Hose

Reliable Engine Crankcase Breather Hose for BMW Models

The Genuine 11157567801 engine crankcase breather hose is designed to maintain proper ventilation within your BMW's crankcase system. Compatible with BMW 325i, 330i, 525i, 530i, and Z4 models, this part ensures efficient emission control and engine performance.

• Genuine OEM part number 11157567801 for precise fitment
• Compatible with BMW 325i, 330i, 525i, 530i, and Z4 models
• Engine crankcase breather hose designed for emission control systems
• Durable construction to withstand engine heat and pressure
• Maintains proper crankcase ventilation to reduce harmful emissions

Product Details and Compatibility

This Genuine engine crankcase breather hose (part number 11157567801) is engineered specifically for select BMW vehicles, including the 325i, 330i, 525i, 530i, and Z4. It plays a critical role in the emission control system by allowing gases to escape from the crankcase, preventing pressure buildup and reducing engine contamination. The hose is manufactured to meet OEM specifications, ensuring a secure fit and reliable performance under normal operating conditions.

Purpose and Common Issues Addressed

• Prevents excessive crankcase pressure that can cause oil leaks
• Reduces engine contamination from blow-by gases
• Helps maintain optimal engine performance and fuel efficiency
• Supports emission control compliance by routing crankcase gases properly
• Mitigates rough idling or stalling caused by faulty ventilation

Installation Notes and Tips

When installing the Genuine 11157567801 breather hose, ensure the engine is cool to avoid injury. Inspect the connecting points for any signs of wear or damage before fitting the new hose. Properly secure all clamps and connections to prevent leaks. Refer to the vehicle’s service manual for torque specifications and detailed installation procedures specific to BMW 325i, 330i, 525i, 530i, and Z4 models.

Quality Assurance and Warranty

As a Genuine BMW part, the 11157567801 engine crankcase breather hose meets strict quality standards for durability and performance. It is manufactured to OEM specifications to ensure compatibility and reliability. Warranty coverage is subject to the terms provided by BMW and may vary by region; consult your local BMW dealer for specific warranty information.