BMW E87 E90 118i 318i N46 129HP ECU KIT DME CAS2 + Key 7557290 Manual

BMW E87 E90 118i 318i N46 129HP ECU KIT DME CAS2 + Key Manual is a complete electronic set from the Electronic control modules and controllers group, designed for BMW vehicles with an N46 engine and a manual transmission. The set ensures consistent operation of the DME engine control unit and the CAS2 module, which facilitates professional repair or replacement of factory electronics in the car.

Specifications and technical data

• SKU: 7557290-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7557290
• Substitutable numbers: 12147565301, 7565301, 12147557290, 7557290, 0261201106, 0 261 201 106, 61356981416, 6981416
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the ECU DME CAS2 kit

The presented set is dedicated to BMW E87 and E90 series models with an N46 unit and a manual transmission. Combining the DME engine controller with the CAS2 module allows for maintaining the consistency of the immobilizer system, starting, and engine management, which is particularly important when replacing electronics in modern vehicles. A complete solution in the form of a single set minimizes the risk of component matching issues, facilitates configuration, and reduces the time required to restore full functionality of the drivetrain.

Benefits of using a complete DME + CAS2 set

Using a single, matched set of controllers in a BMW with an N46 engine provides a number of practical benefits:

• consistent cooperation between the engine controller and the CAS2 module within a single vehicle,
• reduction of communication issues in the CAN network and the immobilizer system,
• easier diagnostics and programming compared to replacing individual modules,
• possibility of effective vehicle repair after engine electronics or starting system failure. For workshops specializing in the BMW brand, such a set constitutes a practical, technically consistent solution that allows for optimizing the service process and limiting the number of potential points of failure.

Compatibility with manual transmission

The discussed set has been prepared for vehicles equipped with a manual transmission. This means that the engine control logic and cooperation with other vehicle modules are adapted to the specifics of a manual gearbox, which is significant for the correct operation of functions such as torque control or response to signals from the drivetrain. Proper matching of the controller to the transmission type is crucial for stable engine operation, smooth acceleration, and the correct functioning of driver assistance systems.

Product characteristics and service application

The product comes from the BMW offer and belongs to the Electronic control modules and controllers category, which guarantees structural compatibility with factory solutions used in vehicles of this brand. The set will work well both for post-accident repairs and for troubleshooting faults related to engine controller damage or vehicle starting problems. Due to its nature, the set is particularly useful for professional service centers, automotive electricians, and advanced users who expect precise component matching and the ability to restore full functionality of the engine control system in a BMW E87 or E90.

Support in choosing used electronics

When selecting used engine controllers and comfort modules, it is worth being guided not only by markings but also by generation compatibility and intended use for a specific type of transmission. To better understand when choosing a used ECU set is justified and what to pay attention to during installation and diagnostics, check out our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors? If you are planning a comprehensive repair or upgrade of the engine control area in your BMW and need other elements from the same group, such as additional controllers, engine management modules, or related controllers, check the available parts in the BMW electronic control modules and controllers category.