BMW X3 Series E83 2.0i Cooling System Coolant Radiator Water Hose Pipe 3404069

The BMW X3 E83 2.0i N46 Water Radiator Hose is a cooling system component from the Hoses, Pipes & Tubes category, designed for the BMW X3 E83 model with the N46 gasoline engine. It's a practical solution for users seeking a proven, used component with factory geometry and fit for the original cooling system.

Specifications and technical data

• SKU: 3404069
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3404069
• Substitutable numbers: 3404069, 17113404069
• Category: Hoses, Lines & Pipes

Application and Fitment for BMW X3 E83 2.0i N46

The BMW X3 E83 2.0i N46 Water Radiator Hose is designed as a cooling system component for the specific N46 engine variant. It is responsible for safely routing coolant between components, maintaining proper flow and sealing under the operating conditions of a gasoline engine.

Thanks to its design conforming to factory solutions, the hose maintains the correct positioning within the engine bay, which reduces the risk of rubbing against other parts and facilitates servicing. This is particularly important when operating in variable temperatures and during long journeys.

Technical Characteristics and Function in the Cooling System

As a component from the Hoses, Pipes & Tubes group, this water radiator hose operates in an environment of elevated temperature and pressure. Its function is to:

• maintain stable coolant flow between key system components,
• ensure adequate flexibility while resisting deformation,
• reduce vibrations transmitted from the engine to the cooling system.

A properly selected radiator hose helps maintain the correct operating temperature of the N46 engine, which translates to stable engine performance and reduced load on other cooling system components.

Used Condition and Benefits of Choosing OEM BMW Parts

The offered hose is a used BMW part, allowing for an attractive price while maintaining factory fitment. In practice, this means:

• geometry consistent with the original cooling system of the BMW X3 E83 2.0i N46,
• easier installation in place of a worn or leaking hose,
• no need for system modifications or custom brackets.

For many users, this is a sensible choice for maintenance repairs where preserving the manufacturer's original design concept and predictable component behavior in daily driving are important.

Service Application and Installation Tips

Replacement of the water radiator hose is recommended in case of noticeable leaks, cracks, material softening, or signs of overheating. When installing, pay attention to:

• correct routing of the hose relative to other components in the engine bay,
• the condition of hose clamps and mounting points,
• proper bleeding of the cooling system after replacement.

Selecting the correct hose for a specific N46 engine version reduces the risk of fitment issues and leaks after installation, which directly impacts the safety of the engine's operation.

Other BMW Hoses, Pipes & Tubes and Technical Knowledge

If you are looking for other components from the Hoses, Pipes & Tubes category dedicated to this brand, check out the BMW hoses, pipes & tubes available in our assortment to select complete solutions for your cooling system or other vehicle installations.

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