BMW X3 E83 Radiator Engine Water Cooling 3450046

BMW X3 E83 Radiator Engine Water Cooling is an original cooling and air conditioning system component designed for installation in the rear part of the vehicle. Thanks to its factory fitment for the BMW design, it ensures stable thermal system performance and proper compatibility with other components. This is a solution for users seeking a proven OEM component instead of random replacements.

Specifications and technical data

• SKU: 3450046
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3450046
• Substitutable numbers: 17113450046, 3450046
• Location on the vehicle: Rear
• Category: Radiators

Purpose and function in the vehicle system

The presented radiator-condenser is a component from the Water radiators group, designed specifically for the BMW X3 E83 with the N47 engine. It is responsible for efficient heat dissipation from the system, which translates into stable operating temperatures for components and proper air conditioning performance in both urban and highway conditions.

Its placement in the rear of the vehicle promotes even distribution of thermal loads and allows for better temperature management throughout the entire system. This design solution is particularly important in vehicles operated under load or on long journeys.

Benefits of using an original radiator-condenser

Choosing an original component from this group ensures:

• factory fitment for the BMW X3 E83 N47 cooling and air conditioning system,
• maintenance of the flow and heat exchange parameters designed by the manufacturer,
• consistent cooperation with other system elements, without the need for installation modifications,
• more predictable system behavior in high and low ambient temperatures.

The item in used condition is a reasonable compromise between cost and functionality – especially for vehicles used intensively, where both reliability and repair economy matter.

Installation zone – rear of the vehicle

The installation location specified as the rear means that the component has been designed to operate under specific airflow conditions and structural integration in this part of the body. This is significant for both cooling efficiency and the durability of the component during long-term operation.

When selecting parts, it is worth paying attention to the compatibility of the installation zone with the factory vehicle configuration – using the correct component reduces the risk of leaks, improper hose routing, and mounting issues.

Operation, savings, and technical knowledge

When replacing cooling and air conditioning system components in a BMW, it is particularly important to maintain appropriate component quality and follow the correct bleeding and leak testing procedures. A used condenser-radiator can significantly reduce repair costs while maintaining proper operating parameters, provided it is correctly matched to the model and engine version.

If you want to better understand how high temperatures affect the cooling system and how to reasonably use components from this group, check out the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, where you will find practical tips on operation and part selection.

Expanding the BMW cooling system

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other elements from the same group, such as additional heat exchangers, hoses, or mounting elements, check the available parts in the BMW Water radiators category.

For drivers who also pay attention to environmental and economic aspects, a good supplement to your knowledge will be the article Eco-driving: discover the benefits of used car parts, describing the advantages of making conscious choices regarding used components in daily vehicle operation.