Key Reading Module BMW E60 E61 E81 E87 E90 E91 CAS 3 ECU Control Unit 9287535

Visual condition of the part

The product shows signs of use visible in the photos.

Key Reading Module BMW E60 E61 E81 E87 E90 E91 CAS 3 ECU Control Unit is an advanced electronic control module designed to manage comfort and authorization functions in selected BMW models. As a component from the Electronic control modules and controllers group, it is responsible for precise communication with other vehicle systems, ensuring stable operation of electrical circuits. This used OEM component allows for a cost-effective yet professional repair of the comfort system in E-series BMW cars.

Specifications and technical data

• SKU: 9287535-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9287535
• Substitutable numbers: 61359395657, 9395657, 61359287535, 9287535, 61359237047, 9237047, 61359217853, 9217853, 61359147226, 9147226, 61359226238, 9226238
• Category: ECUs & Computer Modules

Purpose and function of the CAS 3 module

The CAS 3 module plays a key role in the electrical architecture of the BMW E-series, integrating comfort functions with the vehicle's control systems. Among other things, it is responsible for handling vehicle authorization, cooperating with electronic systems, and communicating with other controllers in the vehicle network. This ensures consistent operation of many components, which translates into predictable vehicle behavior and proper functioning of comfort systems.

Compatibility with BMW E-series models

The presented controller is intended for selected versions of the BMW E60, E61, E81, E87, E90, and E91, which utilize the CAS 3 system. Using an original module from the same family allows for maintaining compatibility with the factory electrical installation and vehicle software. In practice, this means the ability to restore the proper operation of comfort systems without the need for interfering with wiring harnesses or adapting aftermarket solutions.

Advantages of using an original control module

Choosing an original CAS 3 module for BMW brings a number of technical benefits:

• maintaining the factory logic of comfort and control systems,
• consistency with other controllers in the vehicle,
• possibility of diagnostics and programming using standard BMW service tools,
• reducing the risk of communication errors in the vehicle network.

Thanks to this, the module provides a solid foundation for professional repair or replacement of a damaged controller in BMW cars equipped with the CAS 3 system.

Condition, origin, and practical application

The offered module comes from dismantling and is marked as a used BMW OEM component, which allows for combining reasonable cost with maintaining the manufacturer's original specifications. This type of controller is particularly useful for repairing vehicles that have experienced comfort system damage, electronic communication problems, or require module replacement after interference with the electrical installation. Before installation, it is recommended to perform a full diagnostic and, if necessary, properly code the module to the specific vehicle.

Expanding the control system in BMW

If you are planning a comprehensive repair or upgrade of the control electronics area in your BMW and need other elements from the same group, such as additional controllers, comfort modules, or ECU units, check out the available parts in the BMW electronic control modules and controllers category.

For owners of older cars who want to better understand how to utilize the potential of parts from dismantling and maintain the character of a premium brand, our blog article may be helpful – you can find more on this topic in the material Audi and emotions in their purest form – how used parts help maintain the brand's DNA. In the context of BMW repairs, it shows how to consciously select original electronic modules to maintain the consistent operation of the entire vehicle.

If you are interested in a broader approach to repairing older models using components from dismantling, it is also worth reading the guide how to deal with the lack of parts at authorized service centers thanks to components from dismantling, which discusses the practical aspects of selecting and installing used controllers and other electronic components.