BMW E85 E87 E90 120i 320i N46 150HP Engine ECU DME 7561834 Manual

BMW E85 E87 E90 120i 320i N46 150HP Engine ECU DME Manual is an original engine control unit designed for 150 HP N46 petrol engines paired with a manual transmission. As a component from the Electronic control modules and ECUs category, it is responsible for precise engine management, ensuring stable performance and proper communication with other vehicle systems. This is an ideal solution for users looking to restore the full functionality of the powertrain in their BMW 1 Series or 3 Series.

Specifications and technical data

• SKU: 7561834-21
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7565301
• Substitutable numbers: 7565301, 12147565301, 7561891, 12147561891, 7550867, 12147550867, 7550857, 12147550857, 7561834, 0261201159, 0 261 201 159
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application and function of the engine control unit

The presented DME unit is dedicated to BMW E85, E87, and E90 models equipped with the 150 HP N46 engine and a manual transmission. It manages key processes such as fuel injection, ignition timing, engine accessory control, and monitoring of powertrain operating parameters. This ensures stable engine operation and predictable, consistent throttle response.

A properly selected DME unit allows for maintaining compatibility with the vehicle's factory configuration, which is particularly important for modern BMW electronic systems. This enables seamless integration with the car's electrical wiring and other modules without the need for non-factory modifications.

Benefits of using an original BMW module

Using an original BMW engine control unit from the Electronic control modules and ECUs category ensures high compatibility with factory software and vehicle architecture. This is especially important for petrol engines, where precise fuel mixture and ignition control translate into smooth operation, fuel efficiency, and engine longevity.

The main advantages of this solution include:

• maintaining factory operating parameters for the N46 engine with a manual transmission,
• consistency with the original electrical installation and vehicle communication network,
• the ability to use existing BMW diagnostics for module configuration and potential adaptation,
• reducing the risk of communication errors between the engine ECU and other electronic modules.

For the user, this means more predictable vehicle behavior, easier diagnostics, and the possibility of continued service according to manufacturer procedures.

Technical characteristics and compatibility

The DME unit has been designed to work with the 150 HP N46 petrol engine, ensuring a perfect match for the unit's characteristics – both in terms of ignition maps and accessory control strategies. Being adapted for a manual transmission, the module's logic accounts for the specifics of manual gear shifting, including response to load and engine speed.

As a used component, this ECU is an economical solution that allows for restoring engine control system efficiency without the need to invest in a new module. When selecting, it is worth paying attention to compatibility with the specific BMW configuration to ensure proper communication with the vehicle's other systems.

Practical tips for installation and diagnostics

When replacing the engine control unit in a BMW 1 Series or 3 Series, it is recommended that the installation and any necessary coding be performed by a workshop experienced with BMW electronics. This allows for a proper module adaptation process to the specific vehicle, including matching the immobilizer and equipment configuration.

In case of engine performance issues, such as rough idling, power loss, or error codes stored in the ECU, replacing the DME with a functional unit can be an effective repair step. It is worth preceding this with full diagnostics to confirm that the control module is indeed the source of the problem, rather than mechanical components.

More about BMW electronic modules

If you want to better understand how to maintain your BMW engine ECU and other electronic modules, such as the iDrive system or body modules, you can find practical tips in the article: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models. This is a valuable source of knowledge for those using salvaged parts and wanting to keep their electronics in good condition.

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