BMW E60 E87 E90 LCI N47 120d 320d ECU Control Unit Kit DDE 7823420 CAS3 Key

The BMW E60 E90 N47 Key Control Unit Kit is a set from the Electronic Control Modules and Controllers category, designed for BMW vehicles with an N47 diesel engine and manual transmission. The kit enables efficient replacement of the factory powertrain control electronics, ensuring component consistency and stable system operation.

Specifications and technical data

• SKU: 7823420-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7823420
• Substitutable numbers: 13618512498, 8512498, 13617812538, 7812538, 13618506437, 8506437, 13618510591, 8510591, 13617823421, 7823421, 13618506374, 8506374, 13617823420, 7823420, 13618506438, 8506438, 0281014572, 0 281 014 572, 61359147226, 9147226
• Fuel type: Diesel
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Kit Purpose and Compatibility

The key control unit kit has been developed for BMW E60 and E90 series cars equipped with the N47 diesel engine and manual transmission. The combination of the controller with a matching key facilitates integration with the vehicle's factory security system and reduces the risk of immobiliser issues.

This component belongs to the group of BMW electronic control modules and controllers, which means it maintains the correct communication architecture with other vehicle systems (including the onboard network, powertrain, and comfort systems). As a result, the kit is a practical solution for replacing a damaged controller in N47 family vehicles.

Benefits of Using the Key Control Unit Kit

Combining the controller and key in one set offers several practical advantages:

• Component Consistency – the controller and key come from the same system, making adaptation in the vehicle easier.
• Reduced Starting Problems – lower risk of conflicts with the immobiliser and starting system.
• Simplified Installation Procedure – fewer programming steps compared to selecting components from different sources.
• Better Integration with Diesel Powertrain – the controller is prepared to work with the N47 engine and manual transmission.

For workshops and individual users, this means faster repair completion and a more predictable final result after module replacement.

Application in Diesel Powertrain with Manual Transmission

The presented kit is intended for diesel-powered vehicles where the controller is responsible for precise engine management, fuel delivery, combustion parameter control, and interaction with engine ancillaries. The configuration for a manual transmission allows for proper handling of functions related to power transfer, such as clutch pedal response and appropriate torque maps.

In practice, this translates to stable engine operation, correct communication with other modules, and driving characteristics consistent with BMW's factory specifications for N47 units.

Used Product Characteristics

The key control unit kit is a used component, offering an attractive alternative to new parts. This type of solution significantly reduces repair costs while maintaining the original manufacturer's specifications. For BMW control electronics, it is particularly important to use components that are structurally compatible with the specific vehicle generation – a used OEM module meets this requirement.

If you want to learn more about the automotive electronics aftermarket, you can find practical tips on selection, compatibility, and installation in the guide used automotive electronics – second-hand ECU modules and sensors, which discusses aspects such as OEM number matching and hardware/software differences.

Who is this Kit For?

The BMW E60 E90 N47 Key Control Unit Kit is a solution aimed at both professional service centres and knowledgeable users who are organising repairs themselves. It is particularly useful in situations where the existing controller has been damaged, starting problems occur, or the entire powertrain control electronics need replacement.

If you are looking for other products in the BMW Electronic Control Modules and Controllers category, check out the BMW electronic control modules and controllers available in our range to select a component tailored to your specific model and engine version.

Additional information on the benefits of using used components in vehicles of this brand can also be found in the article used parts for BMW – key benefits for brand enthusiasts, which discusses the economic, technical, and ecological aspects of such a solution.