BMW G20 G30 330e 530e B48X High Voltage Battery Radiator Top Right O/S 8632538

BMW G20 G30 330e 530e B48X High Voltage Battery Radiator Top Right O/S is an original high-voltage cooling system component designed for BMW 3 and 5 series hybrid models. It ensures stable heat dissipation from the traction battery, which translates into safe operation of the hybrid drive and predictable performance in various road conditions. Thanks to its factory OEM design, the radiator maintains full compatibility with the cooling system architecture in BMW G20 and G30 vehicles.

Specifications and technical data

• SKU: 8632538
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8632538
• Substitutable numbers: 61278632538, 8632538
• Location on the vehicle: Right
• Part type: Radiator
• Category: Radiators

Purpose and function in the BMW cooling system

The presented top right battery radiator operates in the fluid circuit responsible for temperature control of the high-voltage battery in B48X hybrid units. Its task is to maintain a stable temperature range, which reduces the risk of cell overheating and supports the repeatability of the recuperation and electric assist system. The placement on the right side of the vehicle allows for optimal routing of cooling hoses and proper distribution of heat exchangers in the front part of the body. As a result, the battery cooling system works effectively with other thermal management components of the vehicle, such as engine radiators or other fluid heat exchangers.

Benefits of using an original battery radiator

Using a factory battery radiator in hybrid BMW 3 and 5 series models brings a number of practical benefits:

• maintaining the traction battery cooling efficiency designed by the manufacturer,
• proper cooperation with the existing system of hoses and mounts,
• reducing the risk of hybrid system malfunction resulting from battery overheating,
• maintaining stable drive operating parameters under load, e.g., during highway driving or in high ambient temperatures. For vehicles with a hybrid drive, consistency of cooling system components is particularly important, as both battery durability and daily driving comfort depend on it.

Installation characteristics and vehicle integration

The top right battery radiator is designed for installation in factory mounting points in the BMW G20 and G30 body. The precise fit of the shape and connection ports facilitates connection to the existing cooling installation without the need to modify hoses or brackets. The placement on the right side of the vehicle promotes clear routing of coolant hoses and facilitates service within the front compartment area. Proper seating of the radiator in the body structure is important for correct airflow through the heat exchanger and for maintaining the appropriate rigidity of the entire system.

Operation in high-temperature conditions

The battery cooling system in hybrid vehicles is particularly stressed during the summer, when the ambient temperature further increases the battery operating temperature. An efficient battery radiator helps reduce drops in electric drive performance and lowers the risk of emergency power limitation by the control electronics. To better understand the impact of high temperatures on the entire cooling system and the potential for savings when using used parts, it is worth checking out our guide: Summer heat vs. cooling system – used radiators and fans as a way to control costs.

Expansion and modernization of the BMW cooling system

If you are planning a comprehensive repair or modernization of the cooling system area in your BMW and need other components from the same group, such as additional fluid heat exchangers, battery cooling modules, or related hoses, check out the available parts in the BMW water radiators category. Selecting components from one functional group allows you to maintain the consistency of fluid flow parameters and facilitates the diagnosis of potential faults in the future. In the case of hybrid vehicles, this is of particular importance for maintaining the stable operation of the entire powertrain.