BMW E60 E81 E82 E87 E90 E91 E92 ECU Key Reading Module Control Unit CAS3 9147220

BMW E60 E81 E82 E87 E90 E91 E92 ECU Key Reading Module Control Unit CAS3 is an original electronic control unit designed for selected BMW 1, 3, and 5 Series models. As a part of the Electronic control units and controllers group, it is responsible for advanced handling of comfort and safety functions, serving as a key component of the vehicle's electronic system. This is a solution for users who want to restore the proper operation of comfort systems using a proven component.

Specifications and technical data

• SKU: 9147220
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9147220
• Substitutable numbers: 61359147220, 9147220, 61359147212, 9147212, 61359147196, 9147196, 61359395657, 9395657, 61359226238, 9226238, 61359217853, 9217853, 61359147226, 9147226, 61359147221, 9147221, 61359147195, 9147195, 61359147184, 9147184, 61356943834, 6943834, 61356943822, 6943822, 61356943814, 6943814, 61356943797, 6943797, 61356943771, 6943771, 61356943791, 6943791, 61356981416, 6981416, 61356964051, 6964051, 61356943766, 6943766, 61356943811, 6943811, 61356943796, 6943796, 61359136874, 9136874, 61356943830, 6943830, 61356943836, 6943836
• Category: ECUs & Computer Modules

Purpose and role of the CAS module in BMW

The CAS module in BMW E60, E81, E82, E87, E90, E91, and E92 models acts as a central controller responsible for communication between the vehicle's key electronic systems. In practice, this means cooperation with comfort systems, security features, and other controllers, which translates into stable operation of the electrical installation. Using an original module allows for maintaining the consistency of the car's electronic architecture and reducing the risk of compatibility issues.

Benefits of using an original control unit

Using a factory-spec CAS controller in a BMW ensures:

• compatibility with the factory electrical installation and the vehicle's communication bus,
• proper cooperation with other controllers in the car,
• stable operation of comfort and security systems after proper adaptation to the vehicle,
• reduction of the risk of errors resulting from the use of unsuitable replacements. An additional advantage is the presence of interchangeable part numbers, thanks to which the module can be used in place of several factory variants, which facilitates the selection of the appropriate element for a specific BMW configuration.

Product characteristics and fitment

The offered module belongs to the Electronic control units and controllers group, which means it is designed to work in the demanding environment of a vehicle's electrical system. As a used part, it comes from dismantling, which allows for an economical restoration of the electronic system's efficiency while maintaining the manufacturer's original specifications. Before installation, it is recommended to verify the compatibility of the markings and prepare for adaptation in the vehicle in accordance with BMW service procedures.

Professional installation and diagnostics

Due to the role of the CAS module in the BMW electronic structure, installation by a workshop with access to appropriate diagnostic software is recommended. This enables:

• proper coding of the module to the specific vehicle,
• verification of communication with other controllers,
• checking the correct operation of systems after installation. This approach minimizes the risk of errors in the operation of electronic systems and allows for the full potential of the installed controller to be utilized.

More about BMW electronic modules

If you want to better understand how to take care of electronic modules in BMW 3 and 5 Series and how to safely use parts from dismantling, it is worth checking out the practical tips included in the article: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models. You will find information there that is helpful when planning repairs and upgrades of control systems. 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 comfort controllers, body modules, or other units managing the electrical installation, check the available parts in the category BMW electronic control units and controllers.