BMW E46 Z4 E85 Engine Cooling Radiator Water Coolant Unit 1436240

BMW E46 Z4 E85 Engine Cooling Radiator Water Coolant Unit is an original cooling system component designed for BMW 3 Series E46 models and the Z4 E85 roadster. Thanks to its factory design, it ensures stable heat dissipation from the engine unit and proper engine operation across a wide range of loads. This used OEM component is a sensible choice for drivers looking for a proven solution at an attractive price.

Specifications and technical data

• SKU: 1436240
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1436240
• Substitutable numbers: 1436240, 17111436240
• Part type: Radiator
• Category: Radiators

Purpose and function in the cooling system

The presented water radiator was designed as part of the factory engine cooling system in BMW E46 and BMW Z4 E85 vehicles. Its task is to effectively exchange heat between the coolant and the air flowing through the radiator core, which allows for maintaining the optimal operating temperature of the engine unit during city driving, highway driving, and under increased load conditions. Thanks to its design compliant with the manufacturer's standards, the radiator works with the stock coolant pump, thermostat, fan, and cooling system hoses, maintaining the factory engine performance characteristics.

Benefits of using an original BMW radiator

Using an original water radiator instead of a worn or leaking component brings a number of practical benefits:

• maintaining factory engine cooling efficiency,
• reducing the risk of engine overheating,
• proper cooperation with other cooling system components,
• dimensional fit to mounts and accessories in the engine bay,
• possibility of installation without structural modifications. A used OEM component is a good solution for users who want to maintain the original cooling system configuration without the need to invest in expensive replacements with uncertain parameters.

Condition, verification, and preparation for installation

The radiator comes from dismantling and is offered as a used part, which allows for significantly reducing repair costs while maintaining factory specifications. Before being offered for sale, components of this type are standardly verified for leaks, the condition of connection ports, and general suitability for further use. Thanks to this, the customer receives a component prepared for installation by a qualified workshop or an experienced user.

Professional selection and integration with the vehicle

To ensure the proper operation of the cooling system, it is crucial to match the radiator to the specific engine and body version of the BMW E46 or Z4 E85. The original element from the Water Radiators group guarantees compatibility with factory brackets, shrouds, and fans, which facilitates installation and reduces vehicle downtime at the service center. In case of doubts regarding the selection, it is worth consulting a mechanic or a BMW parts specialist. If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional radiators, coolant hoses, or expansion tanks, check the available parts in the BMW Water Radiators category.

Operation in high temperatures and technical knowledge

A functional radiator is of particular importance during the summer period when the load on the cooling system increases significantly. It is worth familiarizing yourself with practical tips regarding the operation of the cooling system in hot weather and the cost-effectiveness of using used components, such as radiators and fans. Detailed information can be found in the guide "Summer heat vs. cooling system: used radiators and fans as a guarantee of savings", which will help you better plan the service and operation of your BMW.