BMW 1 3 Series E87 E90 N45 116i 316i Petrol ECU Kit DME CAS 2 Key 7545046

BMW 1 3 Series E87 E90 N45 116i 316i Petrol ECU Kit DME CAS 2 Key is a complete petrol engine control kit designed for selected BMW 1 and 3 Series models equipped with the N45 engine. The set includes a DME engine control unit, a CAS 2 module, and a matched key, which facilitates professional replacement of the control system without the need for time-consuming programming from scratch. It is a practical solution for workshops and users who want to restore the proper operation of the engine and starting system in a consistent and technically correct manner.

Specifications and technical data

• SKU: 7545046
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7545046
• Substitutable numbers: 12147568427, 7568427, 12147545046, 7545046, 0261209016, 61356943759, 6943759
• Fuel type: Petrol
• Category: ECUs & Computer Modules

Application and compatibility with the N45 engine

The ECU DME CAS 2 kit with key has been developed for BMW 1 Series E87 and 3 Series E90 vehicles in 116i and 316i petrol versions with the N45 engine. Combining the engine control unit with the CAS 2 module and the assigned key ensures the consistency of immobilizer data, which significantly reduces the risk of starting problems after installation. For workshops specializing in the BMW brand, this is a convenient base for further vehicle configuration, and for the user – an opportunity to restore stable operation of the powertrain.

Function of the DME controller and CAS 2 module

The DME controller is responsible for precise management of the petrol engine's operation – fuel dosing, ignition, and cooperation with other electronic modules of the vehicle. The CAS 2 module plays a key role in starting authorization, communicating with both the key and the DME. The set with a matched key allows for maintaining the consistency of these components, which facilitates immobilizer configuration and minimizes the need for deep interference with the vehicle's software. As a result, the entire engine control system can be restored to operation in an orderly and predictable manner.

Benefits of using an original used kit

An original, dismantled ECU DME CAS 2 kit with a key is a solution that often proves more predictable than cheap replacements or unprofessional electronics repairs. Components coming from the same vehicle are already synchronized, which facilitates adaptation in another car after appropriate configuration. For services dealing with BMW electronics, this means shorter diagnostic time, and for the user – a better chance for stable operation of the starting and engine control system. The product belongs to the Electronic control modules and controllers category, which highlights its importance in the vehicle's electrical architecture.

Professional installation and service aspects

Due to the connection of the DME controller, CAS 2 module, and key with the vehicle's security system, installation by a workshop with experience in BMW diagnostics and access to appropriate service software is recommended. Proper installation includes, among other things, matching the kit to the specific car configuration, verifying communication via the data bus, and testing the start and engine operation under various conditions. Such an approach allows for fully utilizing the potential of the kit and reducing the risk of secondary faults related to the vehicle's electronics.

Expanding knowledge and selecting BMW electronics

If you want to better understand how to take care of electronic modules in BMW 3 and 5 Series, including the engine controller and related comfort systems, it is worth reaching for specialized materials. Practical tips on using dismantled parts can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models, which will help you approach electronics repairs in your car consciously. If you are planning a comprehensive repair or upgrade of the engine control and electronics 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.