BMW E87 E90 N46 118i 318i 129HP ECU KIT DME 7561834 CAS2 Key Automatic

BMW E87 E90 N46 118i 318i 129HP ECU KIT DME CAS2 Key Automatic is a complete package of electronic components designed for the BMW powertrain with an N46 engine and automatic transmission. The set includes the DME engine control unit, the CAS2 module, and a matched key, which facilitates a coherent replacement of electronics in the vehicle. Thanks to this solution, you can carry out repairs or upgrades to the engine control system in a technically organized manner.

Specifications and technical data

• SKU: 7561834-19
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7561834
• Substitutable numbers: 12147565301, 7565301, 12147561834, 7561834, 0261201159, 61356943791, 6943791
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the set

The presented set belongs to the Electronic control modules and ECUs group and is dedicated to BMW vehicles with an N46 unit and automatic transmission. Combining the DME engine control unit with the CAS2 module and key allows for maintaining communication consistency within the vehicle's bus, which is crucial for proper starting, engine operation, and interaction with security systems.

A set configured in this way is particularly useful in situations where the original controller has been damaged or there are synchronization problems between the engine electronics and the immobilizer system. Using a single, matched set reduces the risk of software incompatibility and speeds up the service process.

Benefits of using the complete DME + CAS2 + key package

The DME engine control unit set with the CAS2 module and key provides a number of practical advantages in daily workshop work and individual repairs:

• consistency of components responsible for starting and key authorization,
• easier matching to the vehicle installation with an automatic transmission,
• reduced need for additional programming compared to selecting individual modules,
• possibility of faster diagnostics and verification of the engine control system's correct operation.

For workshops specializing in the BMW brand, such a set is a practical service solution, allowing for reduced vehicle downtime and optimized repair costs.

Technical characteristics and vehicle integration

The set has been prepared for cooperation with an automatic transmission, which is important for torque control logic, gear shifting strategies, and communication with other modules in the vehicle. The DME engine control unit in combination with the CAS2 is responsible for:

• controlling the operating parameters of the N46 unit,
• cooperation with the immobilizer system and key authorization,
• data exchange with modules responsible for the automatic transmission.

Such a combination of components allows for maintaining the proper logic of the powertrain, which translates into stable engine starting and predictable vehicle behavior under various operating conditions.

Product condition and use in service practice

The offered set is in Used condition, which means it comes from operation but is intended for further use after proper installation and potential adaptation in the vehicle. This type of solution is often chosen as an economical alternative to new modules, especially in the case of older BMW generations with the N46 engine.

To maximize the potential of the set, it is recommended to have it installed in a specialized service center that has the appropriate diagnostic facilities. This allows for verifying the correctness of communication between the engine control unit, CAS2, key, and other modules in the vehicle.

More information about used electronics and related modules

If you want to better understand when choosing used engine control units, comfort modules, or sensors is justified and how to safely select such components for your car, check out the guide: The second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors?

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