BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504

BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A is an original component from the Relays group, designed for the cooling system in popular BMW 1, 3, 4, and 6 series models. It ensures stable control of the high-current cooling fan, which translates into safe engine operation under various road conditions.

Specifications and technical data

• SKU: 6836504
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6836504
• Substitutable numbers: 6836504, 61366836504, 8794011, 61368794011
• Category: Relays

Purpose and function of the cooling fan relay module

The presented 130A cooling fan relay module is responsible for controlling the operation of the electric radiator fan in selected BMW F-series models. Its task is to precisely switch the fan on and off under high current loads, in accordance with signals from the engine control unit. As a result, the cooling system maintains an optimal operating temperature, which reduces the risk of overheating and supports the durability of the powertrain.

Using an original module from the Relays group allows you to maintain the factory characteristics of the cooling system without the need for interference with the vehicle's electrical installation. This is particularly important in modern BMW designs, where temperature control also influences engine management strategies and exhaust emissions.

Construction, current parameters, and OEM advantages

The 130A cooling fan relay module has been designed to operate under high current loads typical for powerful electric radiator fans. The applied relay architecture enables fast circuit switching while maintaining an appropriate current reserve, which limits contact heating and improves the durability of the component.

As a BMW OEM part, the module is structurally matched to the factory wiring harness and mounting brackets in the engine bay. This means:

• a secure electrical connection with the vehicle's installation,
• stable mounting in the intended installation location,
• preservation of the original current flow path in the cooling system.

Such a solution minimizes the risk of compatibility issues and eliminates the need for installation modifications, which is especially important in vehicles equipped with extensive control electronics.

Condition, service application, and benefits of installation

The offered module is a used component, which makes it an attractive cost-effective alternative to a new part while maintaining the manufacturer's original specifications. This type of solution works well both for standard cooling system repairs and for replacing a damaged relay after a fan failure or overheating of the installation.

In practice, installing the original 130A cooling fan relay module allows you to:

• restore correct radiator fan activation,
• stabilize engine operating temperature in city traffic and under heavy load,
• reduce the risk of recurring faults resulting from improper fan control.

For workshops and private users, this means faster diagnostics, easier installation, and predictable cooling system behavior after repair.

Why choose a used OEM module

Choosing a used BMW OEM cooling fan relay module allows you to significantly reduce repair costs while maintaining factory quality and fitment. Compared to replacements of unknown origin, the original component ensures compliance with the electrical parameters specified by the vehicle manufacturer, which has a direct impact on the reliability of the cooling system.

If you want to better understand how to optimize service costs while maintaining appropriate part quality, it is worth reading the article: Rising repair costs and the boom in used parts – how to save on car service?. You will find practical tips there regarding the conscious choice of used OEM components.

Expanding repairs within the BMW electrical system

If you are planning a comprehensive repair or upgrade of the electrical installation area in your BMW and need other components from the same group, such as starter relays, fuel pump relays, or light relays, check out the available parts in the BMW Relays category.