BMW E46 M3 Radiator Engine Water Cooling Rad Cooler 2228941

The BMW E46 M3 engine coolant radiator is an original cooling system component designed for petrol engines. It ensures stable heat dissipation from the engine, which translates to safe operation of the drivetrain, especially in dynamically driven cars. A used OEM component is a sensible choice for servicing specialized models where proper fitment and predictable operating parameters are crucial.

Specifications and technical data

• SKU: 2228941
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2228941
• Substitutable numbers: 17102228941, 2228941, BG
• Location on the vehicle: Rear
• Fuel type: Petrol
• Category: Other Interior Parts & Accessories

Purpose and Function in the Cooling System

The presented radiator is dedicated to the sporty version of the BMW 3 Series E46 M3 with a petrol engine. Its task is to efficiently dissipate thermal energy from the coolant circuit, which stabilizes the operating temperature of the engine and reduces the risk of overheating during intensive use.

The manufacturer-intended placement at the rear of the system (according to the assembly designation) allows for proper integration with factory hoses, the expansion tank, and other cooling system elements. This ensures fluid flow consistency and correct cooperation with the thermostat and water pump.

Benefits of Using an Original BMW Radiator

Using an original radiator in the BMW E46 M3 is important for both the durability and stability of the engine's operating parameters. Compared to aftermarket alternatives, an OEM component provides:

• factory fitment to the cooling system mounts and connections,
• appropriate thermal efficiency matched to the M3 unit's characteristics,
• consistency with the factory architecture of the engine bay and accessories.

For drivers who use their car in a more demanding manner (highway driving, track driving, dynamic driving), maintaining proper cooling system efficiency is crucial for protecting the engine from excessive thermal loads. A correctly selected radiator helps reduce temperature fluctuations and supports the engine's uniform operation.

Assembly and Operational Characteristics

The radiator is designed for installation at the rear of the specified vehicle area, in accordance with factory BMW documentation. This facilitates servicing for mechanics familiar with the E46 M3's construction and reduces replacement time compared to fitting universal solutions.

The component is adapted for use with a petrol fueled system, which is important when selecting components for cars with different engine variants. Proper matching to the fuel type helps maintain compliance with factory engine and cooling system operating parameters.

Condition and Application in Vehicle Servicing

The offered radiator is a used part, allowing for economical repair of a specialized model while maintaining the original construction and geometry of the component. Such components are often chosen for repairs of sports and collector cars where compliance with factory solutions is a priority.

Before installation, standard servicing procedures are recommended: leak checks, verification of connection condition, and coolant replacement according to the vehicle manufacturer's recommendations. This approach maximizes the part's potential and reduces the risk of later leaks in the system.

Cooling System Expansion and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the engine bay in your BMW and need other parts from the same group, such as additional radiators, coolant hoses, or expansion tanks, check the available parts in the Other BMW category.

For a comparison of solutions used in other brands and sports segments, it is worth familiarizing yourself with an analysis of high-power unit constructions – useful information can be found in the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which discusses, among other things, the impact of cooling systems, brakes, and chassis efficiency on the durability and operating characteristics of high-performance cars.