BMW X3 X4 G01 G02 Footwell Light Module Carpet Control Unit ECU Right 7478448

The BMW X3 X4 G01 G02 Footwell Light Module Carpet Control Unit ECU Right is an original electronic control module for the right-side footwell lighting in BMW X3 and X4 models of the G01/G02 generation. As a component from the Electronic Control Units and Controllers group, it is responsible for precise management of the cabin lighting function, working in conjunction with the vehicle's electrical system. This used OEM component allows for a technically correct replacement of a damaged module without altering the factory system architecture.

Specifications and technical data

• SKU: 7478448
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7478448
• Substitutable numbers: 7478448, 63177478448
• Location on the vehicle: Right
• Category: ECUs & Computer Modules

Module Purpose and Function

The presented footwell lighting module is designed for installation on the right side of the interior of BMW X3 and BMW X4 vehicles with the G01/G02 body style. Its task is to control the operation of the footwell lighting according to signals from the main body control units and user settings. This ensures that the interior lighting system remains consistent with other comfort and safety functions.

As a component integrated into the vehicle's ECU network, the module communicates with the car's data bus, ensuring correct lighting operation in standard modes and in scenarios such as door opening or ignition status changes. The use of an original controller maintains compatibility with the factory software and system logic.

Benefits of Using an Original BMW Module

Using an original footwell lighting module in the BMW X3/X4 G01/G02 offers a number of practical advantages:

• maintaining factory compatibility with the electrical system and other body control units,
• correct cooperation with comfort systems and interior lighting configuration,
• stable operation within the existing ECU architecture without the need for wiring modifications,
• the ability to restore original lighting functionality after a previous module failure.

A used OEM component is a solution that helps reduce repair costs while maintaining high quality of workmanship and fit for the specific BMW X3/X4 generation. For workshops and users, this means predictable installation and easier diagnostics for potential future inspections.

Installation and Vehicle Fitment

The module is intended for installation on the right side of the interior, in the footwell area, in accordance with the factory layout of electrical components in the BMW X3 and X4 G01/G02. In practice, this means it can be installed in place of the damaged controller, using existing mounting points and factory connectors.

To ensure full compatibility, it is recommended to verify the OEM part number and interchangeable numbers with the service documentation or by the vehicle's VIN before installation. In many cases, the module may require basic adaptation or coding in the vehicle using appropriate BMW diagnostic software, which allows it to be correctly assigned to the specific car configuration.

Professional Selection of Used Electronics

When choosing a used footwell lighting ECU module, it is crucial to pay attention to hardware and software compatibility with the specific BMW model. This includes, among other things, matching the body generation, equipment version, and comfort system configuration. A correctly selected controller will avoid problems with communication within the vehicle network and errors stored in the diagnostic memory.

If you want to deepen your knowledge on the safe selection and installation of used controllers and sensors, it is worth consulting the Global Parts guide – it thoroughly discusses selection by VIN/OEM, HW/SW compatibility issues, and practical aspects of installation: Used Automotive Electronics – A Guide to Selecting ECU Modules and Sensors.

Related BMW Electronic Control Units and Controllers

If you are planning a comprehensive repair or upgrade of the electrical system area in your BMW and need other components from the same group, such as comfort controllers, body modules, or additional ECU units, check the available parts in the BMW Electronic Control Units and Controllers category.