Mini Cooper S R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + 2 Keys Manual

Mini Cooper S R56 N14 1.6 174HP ECU Kit DME + CAS3 + 2 Keys is a complete, used electronic set designed for the N14 engine in the Cooper S version, prepared for efficient engine control unit replacement. The set includes the DME engine controller, the CAS3 module, and two keys, which allows for consistent matching of the immobilizer and starting system components. This solution is particularly useful for major engine electronics repairs where maintaining compatibility between modules is required.

Specifications and technical data

• SKU: 7641003-4
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7641003
• Substitutable numbers: 12147587549, 7587549, 12147631001, 7631001, 7641003, 0261S04158, 0 261 S04 158, 61359147195, 9147195
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application and function of the control set

The presented set from the Electronic control modules and ECUs category includes key components responsible for managing the engine's operation and starting authorization. The DME controller is responsible for precise control of injection, ignition, and engine auxiliary systems, while the CAS3 module integrates immobilizer functions and key handling. As a result, the entire package forms a coherent system that, after proper installation and configuration, can restore the correct operation of the engine electronics in a Mini Cooper S R56 with an N14 unit.

The presence of two keys in the set facilitates matching to the vehicle and reduces the need for additional programming of new transponders. This is a practical solution in situations where the original controller has been damaged or there have been communication issues between the modules and the key.

Compatibility and selection by part numbers

The components included in the set have a dedicated OEM part number and a set of interchangeable numbers, which facilitates verifying compatibility with a specific vehicle configuration. When selecting, it is recommended to compare the markings with the currently installed components and take into account the vehicle's equipment version. This helps reduce the risk of software incompatibility or differences in the electrical installation configuration.

The product is intended for Mini brand vehicles, specifically for the Cooper S R56 version with a 174 HP N14 engine. If you have any doubts regarding fitment, it is worth consulting an automotive electrician or diagnostician who will verify compatibility based on the vehicle's technical documentation.

Benefits of using a complete DME + CAS3 + keys set

Using a complete control package offers a number of practical benefits:

• consistency of engine electronics and immobilizer thanks to factory-matched DME and CAS3 modules,
• presence of two keys, which facilitates the configuration of the access and starting system,
• reduction of time required for programming and adapting individual components,
• possibility of restoring the correct operation of the engine control system after the failure of the original controller.

For workshops specializing in automotive electronics, such a set provides a convenient base for further configuration, and for the vehicle owner, it can be an effective way to solve problems with starting the engine or communication between modules.

Transmission fitment and installation aspects

The presented set is intended for vehicles equipped with a manual transmission, which is important when selecting controller software and configuring drive-related functions. Before installation, it is recommended to perform a full vehicle diagnostic and a backup of current settings so that the previous configuration can be restored if necessary.

Installation of the set should be carried out by a specialist with experience in working with Mini electronics, using appropriate diagnostic software. Proper connection, coding, and potential parameter adaptation are crucial for stable engine operation and correct cooperation of all vehicle systems.

Product condition and informed choice of used electronics

The offered set is a used item, which allows for optimizing repair costs while maintaining the manufacturer's original specification. Before re-installation, it is recommended to verify the external condition, connectors, and perform functional tests on the vehicle or a diagnostic bench.

If you want to better understand when choosing used control modules is justified and how to minimize risks with such a purchase, read our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding Mini electronics upgrades

If you are planning a comprehensive repair or upgrade of your Mini's engine electronics and need other components from the same group, such as additional controllers, management modules, or related control systems, check out the available parts in the Mini electronic control modules and ECUs category.

To compare the cost-effectiveness of different solutions – original, aftermarket, and used – the following article may also be helpful: Original, aftermarket, or used – which car parts are the most cost-effective?