BMW 1 3 Series E87 E90 LCI N47 116d 316d Diesel ECU Kit DDE 8512499 CAS 3 Keys

Visual condition of the part

The product shows signs of use visible in the photos.

BMW 1 3 Series E87 E90 LCI N47 116d 316d Diesel ECU Kit is an original electronic engine control unit designed for N47 diesel engines in facelifted 1 and 3 series models. As an item from the Electronic control modules and ECUs category, it is responsible for the precise management of engine operation, fuel injection, and key performance parameters. This used ECU is a practical solution for repairs when you want to maintain the factory logic of the powertrain system.

Specifications and technical data

• SKU: 8512499-9
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8512499
• Substitutable numbers: 13618577664, 13618506375, 13618510592, 13618506433, 13617823423, 13617823422, 13618506434, 13618512499, 13617812540, 13618518167, 0281017551, 61359237047
• Fuel type: Diesel
• Category: ECUs & Computer Modules

Purpose and function of the engine control unit

The engine computer in the version dedicated to N47 units in 116d and 316d models is responsible for coordinating the injection system, turbocharging, exhaust gas recirculation, and engine protection systems. In the case of diesel engines, precise control of fuel dosage and boost pressure has a direct impact on refinement, performance, and fuel consumption, which is why using an original module is particularly important.

This component works with other vehicle systems, such as the OBD diagnostic system, safety systems, and comfort modules, ensuring consistent communication across the vehicle's bus. This ensures full compatibility with factory software and BMW service procedures.

Benefits of using an original BMW module

Using an original BMW engine ECU in cars with the N47 diesel engine allows you to maintain the powertrain's operating parameters in accordance with the manufacturer's specifications. In practice, this means:

• stable engine starting in various temperature conditions,
• proper cooperation with factory injection and boost maps,
• consistency with diagnostic systems used in BMW service centers,
• preservation of original engine and auxiliary component protection strategies.

For users who want to restore full powertrain efficiency after an electronics failure, a used ECU is often an economical and technically safe solution, provided it is correctly selected and adapted to the specific vehicle.

Integration with the diesel system and installation requirements

The presented engine computer is intended for vehicles powered by Diesel fuel, which means its hardware architecture and software are adapted to the specifics of the high-pressure injection system and the torque characteristics of N47 units. During installation, it is necessary to take into account programming procedures and potential matching to the immobilizer and other vehicle modules.

In workshop practice, installing such an ECU requires the use of appropriate BMW diagnostic software and knowledge of coding procedures. This allows for full integration of the module with the existing electrical installation and the restoration of proper communication with other control units in the vehicle.

Application in 1 and 3 series and compatibility with replacement numbers

The discussed engine computer is used in popular BMW 1 Series E87 and 3 Series E90 LCI models in 116d and 316d versions. In practice, this means widespread use in fleet and private cars, where powertrain reliability is crucial for daily operation. The module has assigned interchangeable numbers, which facilitates its identification and the selection of the appropriate variant based on service documentation and parts catalogs.

For workshops specializing in the BMW brand, this is a component often used for repairs following electronics damage, starting problems, or communication errors in the control network. Using an original module from the same product group reduces the risk of incompatibility and speeds up the diagnostic process.

Technical support and additional resources

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, comfort modules, or transmission control units, check the available parts in the BMW electronic control modules and ECUs category.

To better understand the principles of selecting and operating used ECUs and other electronic modules in BMW vehicles, it is worth reading the guide on our blog: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models. The article discusses practical aspects of using dismantled parts, including engine ECUs, which may be helpful when planning a repair.