BMW E87 E90 118i 318i N46 129HP ECU DME 7552176 Manual Transmission

BMW E87 E90 118i 318i N46 129HP ECU DME Manual Transmission is an original electronic engine control unit designed for petrol engines with a manual transmission. This component from the Electronic control modules and controllers category is responsible for precise engine management, ensuring stable performance characteristics and proper cooperation with other vehicle systems. Choosing an original DME controller is a reliable solution for repairing the engine control system in BMW 1 Series and 3 Series models.

Specifications and technical data

• SKU: 7552176-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7552176
• Substitutable numbers: 12147557291, 7557291, 12147552177, 7552177, 12147552176, 7552176, 12147550535, 7550535, 12147550534, 7550534, 12147545043, 7545043, 12147545042, 7545042, 12147531846, 7531846, KZ
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Function and application of the DME controller

The DME engine computer in the version dedicated to the N46 unit in the BMW 118i is responsible for comprehensive control of the combustion process in the petrol engine. It controls, among other things, the fuel dosage, ignition timing, auxiliary equipment operation, and cooperation with safety and onboard diagnostic systems. As a result, the engine maintains stable idle speed, predictable throttle response, and correct operation under various load conditions. The version designed for vehicles with a manual transmission is adapted to the drivetrain characteristics of such configurations, which is important for the proper functioning of features related to torque and traction control. The controller works with petrol fuel systems, making it the right choice for servicing engines powered by this type of fuel.

Benefits of using an original BMW module

The original BMW engine computer from this series provides:

• factory fitment to the vehicle's wiring harness and electronic architecture,
• consistency with the software and logic of onboard systems,
• the ability to perform proper diagnostics using factory service tools,
• stable engine performance parameters after proper matching and coding. Thanks to this, the installation of the controller is predictable in terms of the final result, and the risk of compatibility issues is limited compared to non-original replacements. This is particularly important in modern petrol systems, where many engine and auxiliary functions are tightly integrated.

Product characteristics and condition

The presented engine computer belongs to the Electronic control modules and controllers group and comes from the BMW brand. It is a used component, which in practice means that before installation in another vehicle, it requires a standard matching procedure, including coding and potential adaptation to the specific car. Such controllers are commonly used in engine control system repairs when the original module has suffered electronic damage or is not communicating correctly with the installation. Choosing a used DME controller is often an economical solution that allows for restoring the efficiency of the powertrain while maintaining the vehicle's original electronic architecture. It is crucial, however, to match the module to the specific engine configuration, fuel type, and transmission type – in this case, a petrol unit with a manual gearbox.

Selection, installation, and technical aspects

When selecting this controller for a BMW E87 or E90 series, it is important to pay attention to compatibility with the N46 engine unit and the drivetrain configuration. The module should be treated as a component requiring service by a workshop experienced in BMW electronics, due to the necessity of performing programming and synchronization procedures with the immobilizer and other controllers in the vehicle. In practice, the installation includes:

• correct connection to the existing wiring harness,
• application of appropriate diagnostic procedures,
• checking communication with other modules in the vehicle network,
• verification of proper engine operation after the adaptation is completed. Such an approach helps to limit the risk of system errors, uneven engine performance, or starting problems.

Expansion of the control system and related components

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, engine management modules, or auxiliary controllers, check the available parts in the BMW electronic control modules and controllers category. When making a decision to use a used engine controller, it is worth familiarizing yourself with practical tips regarding the selection and operation of automotive electronics. A detailed discussion of this topic can be found in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which explains what to look for when choosing such components and how to minimize the risk of problems after installation.