£BMW 1 3 Series E87 E90 E91 118d 318d Engine ECU Kit DDE CAS2 Key 7795844

BMW 1 3 Series E87 E90 E91 118d 318d Engine ECU Kit DDE CAS2 Key is a coherent electronic set designed for professional repair of the engine control system. Thanks to the factory configuration of the components, it ensures stable cooperation between the ECU and the immobilizer, as well as safe vehicle starting after replacing damaged electronics.

Specifications and technical data

• SKU: 7795844
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7795844
• Substitutable numbers: 13617808124, 7808124, 13617803372, 7803372, 13617801710, 7801710, 13617799854, 7799854, 13617798179, 7798179, 13617797496, 7797496, 13617797216, 7797216, 13617795844, 7795844, Control Unit, 61356943759 6943759, 0281011631, 0 281 011 631
• Category: Control Modules

Purpose and function of the DDE ECU + CAS2 + Key kit

The presented set is dedicated to selected models of BMW 1 Series E87 and 3 Series E90 / E91 with 118d and 318d engines, where the engine control unit has been damaged or there are issues with start authorization. The kit includes the DDE control unit, the CAS2 module responsible for key authorization, and a matched key, which allows for maintaining the integrity of the vehicle's security system.

A kit configured in this way enables the restoration of proper operation of the fuel injection system, fuel dosage control, engine parameter monitoring, and communication with other modules in the vehicle, while maintaining the integrity of the immobilizer system.

Benefits of using a complete ECU kit

Using a ready-made ECU kit with a CAS2 module and key significantly simplifies the service process compared to replacing individual components. In practice, this means:

• minimizing the risk of conflicts between the engine ECU and the security system,
• reducing the need for advanced programming and adaptation in the vehicle,
• data consistency within the starting and immobilizer system,
• more predictable repair time in workshop conditions.

For workshops specializing in BMW electronics, this is a solution that allows for efficient and repeatable engine control system repair, especially in cases of severe damage to the original ECU.

Category Computers and controllers – application in BMW

The product belongs to the Computers and controllers category, which is a group of components responsible for processing signals from sensors, controlling engine operation, and communication within the vehicle network. In the case of BMW 1 and 3 Series with 118d / 318d units, a correctly selected DDE + CAS2 + key kit is crucial for stable drive operation, proper starting, and cooperation with other comfort and safety modules.

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 Computers and controllers category.

Characteristics of the used ECU kit

The offered kit comes from a used vehicle, which means it is original BMW electronics with preserved factory hardware architecture. For many users and workshops, this is an attractive alternative to new components, allowing for cost reduction while maintaining compatibility with the vehicle's installation.

Before installation, a standard diagnostic procedure and verification of compatibility with the specific car configuration, including engine version and equipment, are recommended. Professional installation and any necessary software adaptation should be performed by a service center with experience in working with BMW electronics.

Selection of used electronics and technical support

When selecting a used engine ECU, CAS2 module, and key, it is crucial to pay attention to compatibility with the engine unit, model year, and installation architecture of the given vehicle. A properly selected kit allows you to avoid bus communication problems, starting errors, or improper operation of accessories.

To better understand when choosing a used ECU kit is justified and how to safely carry out such a repair, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine ECUs, comfort modules, and parking sensors?

Additional tips on avoiding bad purchases and verifying OEM part number compatibility are provided in the article: No more bad purchases! How to professionally select used car parts, saving time and nerves.