BMW Z4 E85 2.5i Engine M54 192HP ECU Engine Control Unit DME 7548769 Manual

BMW Z4 E85 2.5i Engine M54 192HP ECU Engine Control Unit DME is an original electronic control module designed for the petrol engine paired with a manual transmission. This Engine Control Unit is responsible for precise engine management, ensuring stable parameters, correct throttle response, and proper communication with the vehicle's other electronic systems.

Specifications and technical data

• SKU: 7548769-6
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7548769
• Substitutable numbers: 12147561381, 7561381, 12147548771, 7548771, 12147548769, 7548769, 12147549794, 7549794, 12147543223, 7543223, 12147541343, 7541343, 12147543157, 7543157, 12147541335, 7541335, 5WK93022
• Gearbox type: Manual
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Purpose and function of the ECU

The presented ECU is dedicated to the BMW Z4 E85 2.5i with the 192HP M54 engine, in the manual transmission version. As a DME module, it plays a key role in controlling fuel injection, ignition, lambda sensor operation, and a range of sensors responsible for the safe and consistent performance of the powertrain. Using the correct ECU allows you to maintain the factory engine characteristics and avoid software compatibility issues.

Benefits of using an original ECU

Using an original engine control unit in a BMW Z4 E85 ensures:

• retention of factory engine maps and M54 unit operating parameters,
• proper integration with the electrical system and other modules in the vehicle,
• stable operation at idle and under load,
• consistency with BMW OBD diagnostic systems.

Thanks to this, the electronic control module provides a solid foundation for both standard daily use and further optimization of engine parameters within the limits specified by the manufacturer.

Technical characteristics and compatibility

The controller belongs to the Electronic control modules and ECUs category, designed specifically for managing powertrain operation. It is an Engine Control Unit type, adapted for use with a manual transmission, which is significant for torque control logic, ignition cutoff, and diagnostic function support. The presence of the OEM part number and interchangeable numbers in the specification allows for precise matching of the module to the specific vehicle configuration.

Before installation, it is recommended to verify compatibility using the OEM number or reference numbers and to consult a diagnostic technician regarding potential adaptation, coding, or synchronization with the vehicle's immobilizer.

Condition, installation, and practical application

The offered controller is a used item, which allows for an economical repair of the engine control system while maintaining original build quality. In practice, this means the ability to restore powertrain functionality in situations such as electronic damage, bus communication issues, or ECU errors preventing the engine from starting.

During installation, it is recommended to:

• follow BMW service procedures regarding ECU replacement,
• check the electrical wiring for shorts and breaks,
• perform diagnostics after installation to confirm proper communication with other modules.

Technical support and selection by numbers

To make selecting the right engine controller as easy as possible, it is worth using data such as the OEM part number, interchangeable numbers, and electronics manufacturer markings. A detailed discussion of selection principles, including hardware and software compatibility verification, can be found in the Global Parts guide: Used automotive electronics – ECU modules and second-hand sensors.

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 controllers, powertrain management modules, or electronic control systems, check out the available parts in the BMW electronic control modules and ECUs category.