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

BMW 1 3 Series E87 E90 N45 116i 316i Petrol ECU Kit DME CAS 2 2 Keys is a complete petrol engine control kit designed for selected BMW 1 and 3 Series models with the N45 engine unit. The kit includes the DME controller, CAS 2 module, and two keys, which facilitates professional engine electronics replacement without the need for tedious programming from scratch. It is a practical solution for workshops and users who want to restore the proper operation of the drivetrain in a consistent and technically correct manner.

Specifications and technical data

• SKU: 7545046-3
• 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 kit with the CAS 2 module has been developed for BMW 1 Series E87 and 3 Series E90 vehicles with the N45 petrol engine in 116i and 316i versions. This means that all components included in the set are factory-matched to the electrical architecture of these models, which promotes stable operation of the ignition system, fuel injection, and communication with other vehicle modules. As a result, the kit is particularly useful when replacing a damaged engine controller or performing a comprehensive repair of the powertrain electronics.

Construction of the ECU DME CAS 2 kit

The set includes a DME engine controller responsible for precise management of the petrol unit, a CAS 2 module acting as an anti-theft security feature, and two keys compatible with this system. This configuration allows for maintaining consistency between the immobilizer, the controller, and the keys, which significantly reduces the risk of start-up authorization issues after installation. The kit comes from the Electronic control modules and controllers group, which guarantees that it is a component intended for operation in the critical area of engine management.

Benefits of using a complete kit

Choosing a complete ECU DME kit with CAS 2 and keys instead of a single controller brings a number of practical benefits:

• maintaining compatibility between the controller, security module, and keys,
• limiting the scope of programming to the necessary minimum,
• reducing the risk of conflicts in communication with other vehicle modules,
• facilitating diagnostics in case of future service inspections. For workshops specializing in the BMW brand, such a set is a convenient service solution, allowing for reduced repair time and ensuring a predictable result of the petrol engine control system's operation.

Characteristics of the used product

The offered kit is a used item, which in practice means a favorable compromise between repair costs and maintaining original OEM quality. Electronics sourced from factory BMW dismantling usually feature good durability, and with proper installation and diagnostics, they can continue to operate in the vehicle for a long time. This solution is particularly attractive for repairs of older 1 and 3 Series models, where it is crucial to maintain reasonable service costs while preserving the correct functionality of the engine control system.

Installation tips and electronics selection

When selecting the ECU DME CAS 2 kit for a specific BMW vehicle, it is worth paying attention to compatibility with the petrol engine version and the vehicle's equipment configuration. It is recommended to perform full diagnostics before and after installation to confirm proper communication with other modules and the absence of errors in the controller's memory. Professional installation at a specialized BMW service or a workshop dealing with automotive electronics will allow you to fully utilize the potential of this kit and reduce the risk of improper immobilizer system operation. 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 engine controllers, powertrain management modules, or auxiliary system controllers, check the available parts in the BMW electronic control modules and controllers category. To better assess when choosing a used ECU DME kit with a CAS 2 module is technically and economically justified, it is worth reading the guide on our blog: The second life of electronics – when is it worth opting for used engine controllers, comfort modules, and parking sensors?. You will find practical tips there regarding the selection of electronics, including engine controllers in BMW vehicles.