BMW F10 F11 LCI 520d B47 190HP Engine ECU Kit DDE 8591073 CAS4 Key Automatic

Complete DDE engine control unit with CAS4 module and key for BMW 5 Series F10/F11 facelift with 520d B47 190 HP engine is a practical solution for workshops and users who need a tested engine electronics set for cars with automatic transmission and a diesel engine. The set comes from the Electronic control modules and units group, ensuring component consistency and facilitating the restoration of full powertrain functionality.

Specifications and technical data

• SKU: 8591073-13
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8591073
• Substitutable numbers: 13618473185, 8473185, 13618576522, 8576522, 8591073, 0 281 032 671, 0281032671, 61359367376, 9367376
• Fuel type: Diesel
• Gearbox type: Automatic
• Part type: Powertrain Control Module (PCM)
• Category: ECUs & Computer Modules

Purpose and Compatibility with B47 520d Engine

The presented set is dedicated to the facelift BMW 5 Series F10/F11, equipped with the B47 diesel engine with 190 HP and an automatic gearbox. The set has been factory configured for a specific drive configuration, thus maintaining proper cooperation with torque control systems, the injection system, and comfort and safety functions.

The presence of the DDE engine control module, CAS4 module, and a matched key allows for maintaining immobilizer data consistency and starting logic, which in practice significantly simplifies adaptation in a vehicle with a similar specification.

Characteristics of the DDE ECU + CAS4 + Key Set

The set includes key components responsible for engine management and start authorization. The DDE control unit is responsible for precise control of the diesel engine's operating parameters, such as fuel dose, boost pressure, and protection strategies, while the CAS4 module integrates immobilizer functions, key recognition, and ignition authorization.

Since the set also includes a key, it is possible to maintain a consistent electronic environment, which in many cases reduces the need for extensive programming from scratch and shortens the time required to start the vehicle after repair.

Application in Vehicles with Automatic Transmission and Diesel Engine

The system is designed to work with a Diesel engine and an automatic transmission, which is important for correct communication between the engine control unit, the transmission module, and other vehicle systems. Appropriate control maps and operating logic are adapted to the torque characteristics of the B47 engine and the specifics of the automatic transmission.

This matching ensures smooth gear changes, proper operation of comfort functions (e.g., driving modes), and stable powertrain operation under various load conditions.

Benefits of Choosing a Used BMW Control Unit Set

Choosing a used engine electronics set is a solution that can reduce repair costs while maintaining the original BMW system architecture. A set composed of matched components minimizes the risk of software conflicts between the engine control unit, the CAS4 module, and the key, which is particularly important in modern vehicles with an extensive communication network.

For workshops specializing in the BMW brand, such a set provides a convenient base for further configuration, coding, or potential adaptation to a specific VIN, in accordance with manufacturer procedures and using appropriate diagnostic software.

Technical Support and Selection of the Right ECU

When selecting a used engine control unit and associated modules, it is important to pay attention to hardware and software compatibility with the vehicle, as well as correct matching to the fuel type and transmission type. A detailed discussion of selection principles, compatibility verification, and practical aspects of installation can be found in the Global Parts guide: Used car electronics – second-hand ECU modules and sensors.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as engine control units, comfort modules, or transmission control units, check the available parts in the BMW Electronic control modules and units category.