BMW E87 E90 N45 116i 316i 116HP Petrol ECU Kit DME 7557809 + CAS 3 + Key Manual

BMW E87 E90 N45 116i 316i 116HP Petrol ECU Kit DME + CAS 3 + Key Manual is a complete electronic set designed for N45 petrol engines in BMW 1 Series E87 and 3 Series E90 models with 116 HP. It includes the DME engine control unit, CAS 3 module, and a matched key, which facilitates the restoration of proper powertrain operation and starting in vehicles with a manual transmission. Thanks to the factory configuration of the components, the set provides a coherent service solution for vehicles with this type of engine.

Specifications and technical data

• SKU: 7557809-9
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7557809
• Substitutable numbers: 7557809, 12147557809, 9217853, 61359217853, 0261209085, 2461574, 12142461574
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application of the ECU DME + CAS 3 + Key set

The presented control set is intended for BMW vehicles with an N45 116 HP petrol engine, working with a manual transmission. The combination of the DME engine control unit, CAS 3 module, and key allows for maintaining the consistency of the immobilizer system, starting, and powertrain management. This type of set is particularly useful when replacing a damaged control unit, dealing with key authorization issues, or performing electrical system repairs in the powertrain area.

Benefits of using a complete control unit set

The ECU DME set with the CAS 3 module and key provides a number of practical advantages in the repair process:

• consistency of components responsible for starting and vehicle security,
• easier matching to the installation in cars with an N45 engine,
• reduced risk of incompatibility between the engine control unit and the CAS module,
• possibility of efficiently restoring the starting function after an electronics failure.

Thanks to this solution, engine control system repairs can be carried out in an orderly manner, which is particularly important in modern vehicles where electronic control modules and ECUs are closely linked.

Technical characteristics regarding engine and transmission

The offered set is prepared for use with a petrol unit, which means its maps and operating logic are adapted to the specifics of petrol fuel. The set is designed for vehicles equipped with a manual transmission, which is significant for the proper operation of functions related to starting, idle speed control, and cooperation with sensors and engine auxiliary components.

Professional approach to used BMW electronics

As an item from the Electronic control modules and ECUs category, this ECU DME + CAS 3 + Key set is a practical solution for workshops specializing in the BMW brand and for informed users who want to restore the efficiency of the engine control system in a technically correct manner. The used nature of the components allows for the optimization of repair costs while maintaining the functionality required in daily vehicle operation.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional control units, engine management modules, or systems cooperating with the powertrain, check the available parts in the BMW electronic control modules and ECUs category.

Substantive support when choosing a used ECU

When selecting a used ECU DME set, CAS 3 module, and key, it is worth paying attention to compatibility with the specific engine version, fuel type, and transmission type in the vehicle. For users who want to deepen their knowledge about the use of used electronics in cars, a practical supplement to the information will be the guide article Second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors?, which discusses the principles of selection and operation of this type of component.

Summary

BMW E87 E90 N45 116i 316i 116HP Petrol ECU Kit DME + CAS 3 + Key Manual is a practical, complete electronic set designed for N45 petrol engines working with a manual transmission. The combination of the engine control unit, CAS 3 module, and key facilitates the restoration of proper starting system operation and engine management, providing a functional service solution for BMW 1 Series E87 and 3 Series E90 vehicles.