BMW E81 E87 LCI E90 N43 118i 318i Petrol ECU Kit DME 7595179 CAS3 + Key

BMW E81 E87 LCI E90 N43 118i 318i DME CAS3 Key Manual is a set from the Electronic Control Units and Controllers group, designed for N43 petrol engines in BMW 1 and 3 Series models. The set includes the DME engine controller, CAS3 module, and a key for manual transmission versions, ensuring consistent integration of the vehicle's drive electronics and security systems.

Specifications and technical data

• SKU: 7595179-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7595179
• Substitutable numbers: 12147595179, 7595179, 12147599881, 7599881, 12147640015, 7640015, 12147621178, 7621178, 5WK93727, 61359147226, 9147226, KZ, 12147593666, 7593666
• Fuel type: Petrol
• Category: ECUs & Computer Modules

Purpose and Function of the DME + CAS3 + Key Set

This complete set is dedicated to BMW cars with N43 petrol engines in the 118i and 318i versions, equipped with a manual gearbox. The DME controller is responsible for precise management of the engine's operation, while the CAS3 module integrates immobilizer functions, key authorization, and engine start. The included key is matched to this set, facilitating the transfer of the complete start and security system to another vehicle.

A set configured this way allows for seamless replacement of engine control and access system electronics, which is particularly important for repairs after controller failure, immobilizer issues, or when adapting a used engine to an existing vehicle's wiring harness.

Benefits of Using a Complete DME with CAS3 Controller

Using the complete DME + CAS3 + Key set in petrol BMWs with N43 engines offers several practical benefits:

• Consistency of drive and security electronics – the engine controller and CAS3 module are synchronized, reducing the risk of software conflicts,
• Easier vehicle adaptation – the presence of a matched key simplifies the immobilizer configuration process,
• Ability to restore full functionality of the starting system after damage to original components,
• A solution tailored to the specifics of a petrol engine, promoting stable operation of the N43 unit.

For workshops specializing in the BMW brand, such a set is a convenient service solution, allowing for reduced diagnosis and installation time and minimizing potential sources of errors in module communication.

Practical Application in Service

A used set of DME controller with CAS3 module and key is particularly useful in situations where the existing engine control system has been damaged, starting problems occur, or there are errors related to key authorization. Replacing the entire set allows for:

• Restoring correct engine start and operation,
• Reducing the need for deep intervention in the software of individual modules,
• Maintaining the consistency of the vehicle's security system.

Due to the nature of this component as an electronic control unit, installation and configuration should be entrusted to a service with experience in working with BMW electronics, which will allow for full utilization of the set's potential and avoid communication problems within the vehicle's bus system.

BMW Electronic Control Units and Controllers – Expansion and Repairs

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

More About the Role of Original Modules in Modern Cars

Modern premium cars, such as BMW and Audi, largely base their characteristics on precisely tuned electronics. If you are interested in how appropriately selected used modules and equipment help maintain a vehicle's factory characteristics, it is worth reading the article: Audi and Pure Emotion – How Used Parts Help Maintain the Brand's DNA.