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 is a control 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 key control modules, which facilitates professional repair of the electronic system and restoration of proper engine unit performance.

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 of the ECU DME CAS2 set

The presented set is dedicated to BMW E87 and E90 series models with an N46 engine, in a configuration with a manual transmission. Combining the DME engine controller with the CAS2 module in one set reduces the risk of electronics matching issues, which is particularly important when replacing control components in modern powertrain systems.

The complete module configuration allows for maintaining data consistency within the system, which translates into stable engine operation, correct vehicle starting, and proper communication with other onboard systems.

Benefits of using a complete controller set

Using a complete ECU DME set with a CAS2 module in a BMW with an N46 engine and manual transmission provides a number of practical service benefits:

• minimized risk of software conflicts between the engine controller and the CAS2 module,
• easier configuration during adaptation in the vehicle,
• data consistency within the immobilizer and ignition control system,
• increased predictability of the repair result compared to replacing individual modules.

For workshops specializing in the BMW brand, such a set is a convenient, technically organized solution that shortens diagnostic and installation time and limits the number of potential points of failure.

Technical characteristics in the context of a manual transmission

The set configuration is prepared for cooperation with a manual transmission, which is significant both for engine control logic and communication with other vehicle modules. Selecting electronics compatible with the transmission type is crucial for the proper operation of functions such as idle speed control, load response, or cooperation with safety systems.

Proper matching of the ECU DME CAS2 set to the specific drivetrain configuration allows for avoiding problems with incorrect error codes, unstable engine unit operation, or data bus communication interference.

Professional application and selection by OEM numbers

The controller set is intended primarily for professional service centers and advanced users who select electronics based on the OEM part number and interchangeable numbers. This allows for precise matching of the set to the specific equipment version and vehicle model year, taking into account hardware and software compatibility.

To fully utilize the potential of such a solution, it is worth relying on verification by factory numbers, service documentation, and experience in working with BMW electronics. Proper selection translates into stable, predictable operation of the engine control system and comfortable vehicle operation after repair.

For users who want to deepen their knowledge on the selection and installation of used control modules, practical tips, configuration examples, and a discussion of compatibility issues can be found in the article: Used automotive electronics – ECU modules and sensors in practice.

BMW electronic control modules – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other components from the same group, such as additional controllers, comfort modules, or engine management systems, check the available parts in the BMW electronic control modules and controllers category.

Reasonable use of used OEM components within electronics allows for optimizing service costs while maintaining high quality and compliance with the factory vehicle architecture, which is particularly important in the case of advanced control systems used in modern BMW models.