BMW E81 E87 LCI E90 116i 316i 1.6 N43 ECU Kit DME 7583225 CAS3 Key Manual

Description

BMW E81 E87 LCI E90 116i 316i 1.6 N43 ECU Kit DME CAS3 Key Manual is a set from the Electronic control modules and ECUs category, designed to work with the N43 unit in the BMW 1 Series E81 model with a manual transmission. The kit includes the CAS module, engine control unit (ECU), and key, which facilitates consistent matching of electronic components in the vehicle and reduces the risk of immobilizer-related issues.

Specifications and technical data

• SKU: 7583225-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7583225
• Substitutable numbers: 12147599881, 7599881, 12147583225, 7583225, 12147640015, 7640015, 12147621178, 7621178, 5WK93643, 61359147196, 9147196, 12147579142, 7579142, 12147585303, 7585303, 12147580279, 7580279, 12147575665, 7575665
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the kit

The presented set is designed to support the powertrain of the BMW E81 116i with a 1.6 N43 engine and manual transmission. Combining the CAS module, engine control unit, and key allows for maintaining the consistency of the start authorization system, engine operation control, and communication with other modules in the vehicle.

A kit configured in this way is particularly useful when replacing a damaged ECU or comfort/immobilizer module, especially when you want to minimize additional programming work and the need to match individual components.

Benefits of using a complete CAS module and ECU kit

Using a complete kit offers a number of practical advantages in daily operation and during repairs:

• consistency of the electronics responsible for starting and engine control,
• easier integration with the vehicle’s wiring thanks to preserved communication logic between modules,
• reduced risk of conflicts with the immobilizer and errors related to key authorization,
• the ability to efficiently restore full powertrain functionality after an ECU failure.

For workshops and individual users, this means a more predictable installation process and fewer potential points of failure in the vehicle’s electronics.

Technical characteristics and compatibility

The set consisting of the CAS module, engine control unit, and key has been prepared for use with a manual transmission, which is important for proper communication with the powertrain and safety systems. The kit should be treated as a base for further configuration for a specific car, taking into account equipment and software versions.

The presence of dedicated part numbers and interchangeable numbers facilitates verification of compatibility with a specific year and variant of the BMW E81 116i 1.6 N43. Before purchasing, it is recommended to compare the markings with the elements currently installed in the vehicle or consult the selection with an experienced diagnostician.

Application in BMW diagnostics and repairs

The set consisting of the CAS module, ECU, and key is particularly useful in situations where there are problems with starting, bus communication, or improper immobilizer operation. Replacing the entire set can be an alternative solution to time-consuming repairs of individual electronic components.

For services specializing in the BMW brand, such a set is a convenient starting point for further configuration, coding, and adaptation, allowing the vehicle to be restored to full efficiency faster while maintaining high repeatability of repair results.

Condition, origin, and practical installation tips

The components come from dismantling and are classified as used, which allows for an economical restoration of the electronic system’s efficiency while maintaining the manufacturer’s original specifications. Before installation, a standard visual inspection of connectors, wiring, and contact cleanliness is recommended, as well as performing computer diagnostics after installation.

To fully utilize the potential of the kit, it is worth:

• planning the installation along with diagnostics and potential coding,
• ensuring proper connection of grounds and module power supply,
• verifying the absence of additional faults in the vehicle’s electrical system.

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

For a better understanding of how original electronic modules affect the character and handling of a premium car and how used components can restore the factory driving feel, it is worth reading the article on our blog: Audi and emotions in their purest form – how used modules and controllers help maintain the brand’s DNA.