BMW E60 E90 E91 325i 525i N53 218HP ECU DME Kit CAS3 Key 7602118 Automatic

The BMW E60 LCI E90 E91 335i 535i N54B30A ECU Kit DME CAS3 Key Dual Clutch is a complete kit from the Electronic Control Units and Controllers group, designed for advanced control of BMW powertrains with N54 gasoline engines and automatic transmissions. The kit includes the DME engine control unit, the CAS3 module, and a matched key, facilitating professional electronics replacement in facelifted 3 and 5 Series vehicles.

Specifications and technical data

• SKU: 7602118-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7602118
• Substitutable numbers: 12147616431, 12147602118, 5WK93738, 61359217853, 7616431, 7602118, 9217853
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

ECU Kit Purpose and Compatibility

This ECU kit has been developed for BMW 3 and 5 Series models equipped with the N54B30A engine and an automatic transmission, including versions with a dual-clutch system. By being tuned for gasoline engines and the appropriate transmission type, the kit ensures cohesive operation of the powertrain and electronic systems in 335i and 535i class vehicles. The inclusion of the CAS3 module along with the key allows for maintaining the integrity of the immobilizer system and communication with the DME, which is particularly important when replacing the control unit in modern BMW constructions. This setup minimizes the risk of issues with start authorization and vehicle bus communication.

Function of DME, CAS3, and Key in the Powertrain

The DME control unit in this kit is responsible for precise management of the gasoline engine's operation – from fuel delivery and ignition control to cooperation with the automatic transmission. The kit is prepared for configurations utilizing a dual-clutch system, promoting dynamic yet smooth gear changes. The CAS3 module plays a crucial role in key authorization, start/stop function handling, and anti-theft protection. The included key is paired with the module, simplifying further programming and adaptation in the vehicle. This combination of components in a single kit offers a convenient service solution for replacing electronics in the engine and starting system areas.

Application in Vehicles with Gasoline Engines and Automatic Transmissions

The kit's configuration is tailored for gasoline engines, which is significant for control maps, injection system operating strategies, and cooperation with engine peripherals. Tuning for automatic transmissions promotes correct data exchange between the DME and the gearbox, influencing driving comfort and response to load. This combination of parameters makes the kit particularly useful for replacing a damaged control unit in vehicles used for dynamic driving, where both powertrain responsiveness and electronic stability are important.

Benefits of Choosing a Used Original BMW Module

Using original BMW components in the engine control and security areas translates to high compatibility with the vehicle's factory architecture. A used ECU kit of this type allows for economical repair while maintaining proper build quality and fit for the car's electrical system. For users and workshops, this means the possibility of restoring full vehicle functionality without the need for costly replacement with new components, while maintaining consistency with original BMW software and system logic.

Expanding Control Systems and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and require other parts from the same group, such as additional control units, comfort modules, or powertrain management systems, check the available parts in the BMW Electronic Control Units and Controllers category. When selecting a used ECU kit, it is advisable to pay attention to the compatibility of hardware and software designations and the method of adaptation for a specific model. A detailed discussion of selection principles by part numbers, compatibility issues, and practical installation examples can be found in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors? Additional information on the advantages of using original second-hand components, their impact on the safety and durability of the powertrain, is also provided in the article OEM Quality and Safety Guarantee – Why Used Original Car Parts Are the Best Choice for Your Car?, which helps in consciously planning electronics repairs in BMW vehicles.