BMW 1 3 Series E87 E90 E91 118i 318i N46 ECU Kit DME CAS2 Key 7545042 Manual

BMW 1 3 Series E87 E90 E91 118i 318i N46 ECU Kit DME CAS2 Key Manual is a complete engine control electronic kit designed for selected BMW 1 and 3 Series models with the N46 engine and manual transmission. The kit includes the DME engine control unit, the CAS2 module, and a matched key, which facilitates restoring the electronic system's functionality after a failure or engine replacement. This solution allows for a consistent match of the immobilizer and control components, minimizing the risk of vehicle starting issues.

Specifications and technical data

• SKU: 7545042-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7545042
• Substitutable numbers: 12147552177 12147552176 12147550535, 12147550534 12147545043 12147545042, 12147531846, 7552177 7552176 7550535 7550534 754504 75450423, 7531846, 12147557291, 7557291, 0261208540, 0 261 2085 40, 61356981416, 6981416
• Gearbox type: Manual
• Category: Control Modules

Application and compatibility

The presented BMW 1 3 Series E87 E90 E91 118i 318i N46 ECU Kit DME CAS2 Key Manual is intended for BMW 1 Series E87 118i and BMW 3 Series E90/E91 318i vehicles equipped with the N46 engine and manual transmission. Integrating the engine control unit with the CAS2 module and key allows for maintaining the consistency of the security system and engine operation logic, which is particularly important when replacing electronics after damage, flooding, or communication problems in the vehicle's bus.

Construction of the BMW 1 3 Series E87 E90 E91 118i 318i N46 ECU Kit DME CAS2 Key Manual

The kit consists of three cooperating elements: the DME engine control unit responsible for managing the N46 unit, the CAS2 module acting as an immobilizer, and a matched key. This configuration ensures data consistency in the controller memories, which facilitates installation and limits the need for advanced programming. The completeness of the kit is a major advantage compared to purchasing individual modules, which require additional adaptation.

Benefits of using a used ECU kit

A used BMW 1 3 Series E87 E90 E91 118i 318i N46 ECU Kit DME CAS2 Key Manual is a solution that allows for significantly lower repair costs compared to purchasing new components, while maintaining the correct functionality of the system. Consistency of the engine electronics and immobilizer reduces the risk of starting problems, communication errors, and the need for time-consuming configuration. For workshops specializing in the BMW brand, this is a practical base for quickly replacing a damaged controller in vehicles with an N46 engine and manual transmission.

Installation requirements and service recommendations

Due to the nature of electronic components, it is recommended that the installation of the BMW 1 3 Series E87 E90 E91 118i 318i N46 ECU Kit DME CAS2 Key Manual in a BMW E87, E90, or E91 be performed by an experienced service center equipped with appropriate diagnostic software. Proper connection, verification of communication with other modules in the vehicle, and potential adaptation of engine operating parameters are crucial for stable operation. Professional post-installation diagnostics allow for confirming the correct operation of the kit and eliminating any errors stored in the controller memory.

BMW Electronics – selection and additional information

If you are planning a comprehensive repair or upgrade of the engine control electronics area in your BMW and need other elements from the same group, such as additional controllers, engine management modules, or auxiliary system controllers, check the available parts in the BMW Computers and Controllers category.

When choosing a used ECU kit, it is worth knowing how to assess its suitability, what the typical matching procedures are, and what to pay attention to during installation. Practical tips on selecting engine controllers, comfort modules, and other electronic components can be found in the article Second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which will help you consciously plan your repair and select the appropriate components.