Water Hose BMW F10 F11 LCI N57N N57Z Diesel EGR Coolant Pipe Line 8573157

The BMW F10 F11 LCI N57N N57Z Diesel Water Hose is an original cooling system component designed for post-facelift BMW 5 Series diesel engines. A used water hose from this series ensures a factory fit, proper coolant flow, and stable engine operation. It's a practical solution for drivers who want to maintain the coherence of the cooling system with the original BMW specification.

Specifications and technical data

• SKU: 8573157
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8573157
• Substitutable numbers: 8573157, 11538573157, 8512241, 11538512241
• Fuel type: Diesel
• Category: Coolant Hoses

Purpose and Compatibility with Diesel Engines

The water hose is designed to work with the N57N and N57Z units in post-facelift (LCI) BMW F10 and F11 models. The hose's construction is adapted to the characteristics of diesel engines, where the cooling system operates under significant thermal load. Proper coolant routing is crucial for the durability of the auxiliary equipment, cylinder head, and turbocharger.

Choosing a hose dedicated to a specific generation of the 5 Series allows for maintaining:

• correct routing geometry in the engine bay,
• appropriate diameter and cross-section for fluid flow,
• compatibility with the factory cooling system's spigots and connectors.

Category: BMW Cooling System Hoses

This component belongs to the Cooling System Hoses category, which comprises parts responsible for transporting coolant between key engine components. A properly selected water hose reduces the risk of leaks, system pressure drops, and localized overheating, directly impacting the engine's lifespan.

If you are looking for other cooling system hoses dedicated to this brand, check out our offer on BMW cooling system hoses to select components that are structurally consistent with this model.

Characteristics of a Used Water Hose

The offered hose is a used part, meaning it is an original BMW component with its factory geometry and connection types preserved. A used cooling system element is a sensible choice in situations where:

• the original hose has been damaged (cracked, abraded, leaking),
• a quick and economical cooling system repair is necessary,
• you want to maintain the original hose routing in the engine bay.

Choosing a used part allows for maintaining a factory fit without the need for aftermarket replacements with uncertain geometry or quality.

Importance of a Functional Hose in the Cooling System

In BMW 5 Series diesel engines, a properly functioning cooling system directly impacts the engine's operational safety. A leaking or deformed water hose can lead to coolant loss, reduced cooling efficiency, and engine overheating. This, in turn, increases the risk of mechanical damage and costly repairs.

To better understand the role of hoses and radiators in protecting the engine from overheating, it's worth reading the blog article: Engine Cooling System – Overheating, Repair, and Used Radiators. You will find practical information there on how to monitor the cooling system's condition and when to react to the first signs of problems.

Summary

The BMW F10 F11 LCI N57N N57Z Diesel Water Hose is a functional choice for 5 Series users with diesel engines who need a functional, original cooling system component. Using a hose dedicated to a specific generation and engine type helps maintain stable engine operating temperatures, reduce the risk of overheating, and preserve the system's design in accordance with the original BMW project.