Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9226957

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module is an original electronic control unit responsible for managing the CAS4 system and key reading in selected BMW F-series models. This specialized component from the Electronic control units and controllers group ensures proper communication between the key, the ignition switch, and other vehicle systems, which translates into stable engine starting and secure access authorization management. As an OEM BMW part, the module is precisely matched in terms of design and software to the F01, F02, F07, F10, and F11 platforms.

Specifications and technical data

• SKU: 9226957
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9226957
• Substitutable numbers: 61359282118, 9282118, 61359226132, 9226132, 61359226587, 9226587, 61359240220, 9240220, 61359222799, 9222799, 61359213363, 9213363, 61359268751, 9268751, 61359227874, 9227874, 61359224889, 9224889, 61359241973, 9241973, 61359226957, 9226957
• Category: ECUs & Computer Modules

Purpose and function of the CAS4 module

The CAS4 Key Reading module is responsible for key identification and transmitting signals to other controllers in the vehicle. In practice, this means handling the engine start procedure, user authorization, and cooperation with comfort and security systems. In BMW F-series vehicles, this module is a key element of the electronic architecture, integrating with the controller network and ensuring consistent operation of electronic systems.

Compatibility with BMW F-series platforms

The Control Unit CAS4 has been designed specifically for selected BMW models based on the F01, F02, F07, F10, and F11 platforms. Thanks to this:

• it maintains full compatibility with the factory electrical installation and data bus,
• it enables proper cooperation with the comfort access and start system,
• it allows for the preservation of the original operating logic of the start/stop function and vehicle security features.

The original origin from the BMW group reduces the risk of communication problems between controllers and facilitates integration with the existing vehicle configuration.

Benefits of using an original BMW module

Choosing a factory CAS4 Key Reading module brings a number of practical advantages in daily operation:

• Stable operation of the start system – correct key reading and user authorization minimize the risk of problems with starting the vehicle.
• Full integration with other electronic control units – the controller works with other units in the vehicle in accordance with the manufacturer's specifications.
• Possibility of using existing BMW service procedures – diagnostics and programming are performed based on standard service tools.
• Consistency with the factory security architecture – maintaining the original vehicle security functions.

Characteristics and condition of the component

The offered CAS4 module belongs to the Electronic control units and controllers group and is a dismantled component in used condition. Such OEM components are often chosen for premium car repairs because they allow for maintaining the original vehicle specification while optimizing costs. The module may require appropriate adaptation or programming in the vehicle in accordance with BMW procedures, which should be entrusted to a specialized service center.

Support in selection and knowledge expansion

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

For a better understanding of how original electronic modules affect the character and behavior of premium brand cars, it is worth reading the article on our blog: Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?. You will find practical examples there of how properly selected controllers and modules restore the factory quality of system operation.

If you are interested in a broader context of using used OEM components in premium cars, also take a look at the material: Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend, where we discuss why such a solution is currently one of the most rational service choices.