BMW X3 Series E83 E83N LCI 3.0d M57N2 Coolant Hose Pipe Radiator 0362931

BMW X3 E83 / E83N LCI 3.0d M57N2 Radiator Coolant Hose is an original BMW part from the Cooling System Hoses and Pipes category, designed to operate in demanding environments of high temperatures and pressures. As an OEM part, it ensures proper coolant flow between the radiator and other system components, supporting the stable operating temperature of the 3.0d M57N2 engine. A used component allows for an economical yet technically correct repair of the cooling system in the BMW X3 E83 series.

Specifications and technical data

• SKU: 362931
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0362931
• Substitutable numbers: 17123428689, 3428689, 17120362931, 0362931, 17123417280, 3417280
• Category: Coolant Hoses

Purpose and Function in the BMW X3 E83 Cooling System

This radiator hose is specifically designed for the facelifted BMW X3 E83 series (E83N LCI) models with the 3.0d M57N2 diesel engine. It is responsible for the stable flow of coolant between the radiator and other system components, which directly impacts maintaining the correct engine temperature and protecting against overheating.

Thanks to its factory-matched geometry to the engine bay, the hose maintains the correct routing, minimizing the risk of abrasion, kinks, or improper positioning. Appropriately selected hose diameters and connection shapes ensure a leak-free connection to the radiator and other system elements.

Benefits of Using an Original BMW Radiator Hose

Using an original coolant hose for the BMW X3 E83 / E83N LCI 3.0d M57N2 offers several practical benefits for everyday operation:

• Factory Fitment – compatible with the BMW X3 E83 cooling system design, eliminating the need for modifications or adapter parts.
• Appropriate resistance to temperature and pressure – the hose is designed to operate under conditions typical for the M57N2 engine.
• Correct stiffness and flexibility – reduces the risk of kinks and coolant flow reduction.
• Ability to use existing mounts and brackets – maintains the original hose routing in the engine bay.

For the user, this means stable cooling system operation, a reduced risk of leaks, and proper cooperation with other components such as the radiator, thermostat, and water pump.

Used Condition – A Practical Service Solution

The offered coolant hose is a used part, sourced from disassembly. This is a sensible choice for drivers who want to restore the cooling system's functionality in their BMW X3 E83 without investing in a new OEM component. A used hose allows for maintaining factory specifications while reducing repair costs.

Before installation, a standard check of the seals, connection surfaces, and any signs of operational wear is recommended, in line with good service practice for rubber and plastic components in cooling systems.

Selection by OEM Numbers and Technical Support

The radiator hose features the original BMW part number and related interchangeable numbers, facilitating unambiguous identification and matching to a specific BMW X3 E83 / E83N LCI 3.0d version. When selecting cooling system components, it is always advisable to use OEM numbers to avoid compatibility issues and incorrect installation.

If you wish to deepen your knowledge of cooling system diagnostics and operation in cars, check out the guide: Engine Cooling System – Overheating, Repair, and Used Radiators. You will find practical tips on how to link overheating symptoms to the condition of hoses, the radiator, and other components.

A practical purchasing guide can also help with selecting parts by OEM numbers: How to Safely Verify Component Compatibility Online by OEM Numbers, especially useful when assembling parts for BMW.

Other BMW Cooling System Hoses and Pipes

If you are upgrading or comprehensively servicing the cooling system in your BMW X3, you may also need other parts from the same group. Check available BMW Cooling System Hoses and Pipes to select other hoses, tees, or connecting sections that match your car's factory specifications.