BMW E87 LCI E90 118d 318d N47 Diesel ECU DDE CAS3 Key 7807828 Automatic Gearbox

BMW E87 LCI E90 118d 318d N47 Diesel ECU DDE CAS3 Key is a complete, used set of electronic components designed for the BMW powertrain with an N47 engine and automatic transmission. The set includes the DDE engine control unit along with the CAS3 module and key, which facilitates restoring the proper operation of the power unit and immobilizer synchronization. This solution is particularly useful for professional engine electronics repairs in 118d and 318d models.

Specifications and technical data

• SKU: 7807828-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7807828
• Substitutable numbers: 13617807828, 7807828, 61356943834, 6943834, 13618506281, 13617812501 13617810001 13617811701 13617807143, 7812501 7810001 7811701 7807143, 13617807204 13617812001 13617809001 13617807529, 7807204 7812001 7809001 7807529, 13618508712 13617808403 13617806700, 8508712
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the DDE CAS3 set with key

The presented set from the Electronic control modules and ECUs category has been designed to work with the N47 diesel engine in BMW 1 Series E87 LCI and 3 Series E90 vehicles in 118d and 318d versions. Integrating the DDE engine control unit, the CAS3 module, and the key allows for consistent management of starting, fuel injection, communication with the automatic transmission, and vehicle security systems. As a result, this set provides a solid foundation for replacing a damaged engine control system without the need to source individual components separately.

Benefits of using a complete set

Using a complete DDE + CAS3 + key set in BMW cars with a diesel engine and automatic transmission offers a number of practical benefits:

• consistency of the powertrain electronics and immobilizer, which facilitates vehicle configuration after ECU replacement,
• reduction of the risk of starting problems resulting from module mismatch,
• possibility of professional engine control system repair in case of factory ECU failure,
• better control over the operation of the N47 diesel unit in typical urban and extra-urban driving conditions.

For workshops specializing in the BMW brand, such a set is a convenient service solution, allowing for reduced diagnostic and installation time while ensuring a predictable final result.

Application in BMW vehicles with diesel engines and automatic transmission

The engine control system in BMW N47 diesel units working with an automatic transmission must precisely coordinate torque, fuel dosage, and communication with other vehicle modules. The DDE CAS3 set with key has been prepared specifically for such a configuration, making it suitable for use when:

• replacing a damaged engine control unit in 118d and 318d models,
• resolving communication issues between the ECU and the CAS3 module,
• restoring the proper operation of the starting system and vehicle security.

After proper matching and configuration in the vehicle, the set allows for stable diesel engine operation and correct cooperation with the automatic transmission, which is crucial for driving comfort and the durability of powertrain components.

Product characteristics and condition

The offered DDE engine control unit, CAS3 module, and key set comes from the BMW brand and is part of the vehicle's original electronic architecture. The product is in used condition, meaning it was previously operated in another car, but is still suitable for further use after proper installation and configuration. This type of solution is particularly cost-effective for repairs where the priority is to maintain the manufacturer's original electronics while limiting expenses.

Integration with other BMW control modules

In modern BMW vehicles, the DDE engine control unit works with many other modules, creating an extensive communication network. The set with the CAS3 module and key helps maintain the consistency of this network, which is important for both engine operation and comfort and safety systems. If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional controllers, comfort modules, or powertrain management units, check the available parts in the BMW electronic control modules and ECUs category.

Expert support and selection of used modules

When working with used control modules, it is crucial to properly match the components and understand how they affect the vehicle's character. In the context of maintaining the factory characteristics of premium brands, it is worth reaching for expert materials – you can find more about the role of original, used electronic components in building a car's DNA in the article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?.