BMW 1 3 Series E87 LCI E90 N43 118i 318i Petrol ECU Kit 7595179 DME CAS3 + Keys

BMW 1 3 Series E87 LCI E90 N43 118i 318i Petrol ECU Kit is a solution designed for E87 LCI 118i and E90 318i models. The set belongs to the Computers and Controllers category and is prepared for the efficient replacement of factory-installed powertrain control electronics in petrol-powered BMW vehicles.

Specifications and technical data

• SKU: 7595179-10
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7595179
• Substitutable numbers: 121476400157640015, 121476211787621178, 121475998817599881, 121475951797595179, 121475936667593666, 121475072277507227, 121475791427579142, 121475853037585303, 121475832257583225, 121475802797580279, 121475756657575665, 121475737587573758, 61356943834, 69, 12147599881, 7599881, 12147595179, 7595179, 12147593666, 7593666
• Fuel type: Petrol
• Category: Control Modules

Purpose and function of the BMW 1 3 Series E87 LCI E90 N43 118i 318i Petrol ECU Kit

The presented set includes an electronic engine control unit (DME) along with a CAS3 module and matched keys, which allows for maintaining the integrity of the immobilizer system in the BMW 1 Series E87 LCI 118i and 3 Series E90 318i with the N43 petrol engine. This enables the replacement of the entire ignition, injection, and vehicle security control system while minimizing the need for additional programming.

Combining the engine control unit with the CAS3 module in one set facilitates workshop operations, minimizes the risk of software incompatibility, and allows for faster restoration of full vehicle functionality after an electronics failure.

Benefits of using a complete control unit kit

Using a complete ECU DME kit with a CAS3 module and keys in BMW vehicles with the N43 petrol engine offers a number of practical benefits:

• consistent engine control and vehicle security system,
• reduction of issues with immobilizer and key matching,
• easier diagnostics and engine startup after electronics replacement,
• possibility to restore proper operation of the injection and ignition system in a petrol engine.

For workshops specializing in the BMW brand, such a set is a practical solution for major engine electronics failures, and for the vehicle owner, it means a faster return to reliable vehicle operation.

Technical characteristics in the context of the N43 petrol engine

The N43 engine in 118i and 318i versions requires precise control of fuel dosage, ignition, and auxiliary equipment, which is why a properly selected controller from the Computers and Controllers group is crucial for the stable operation of the powertrain. The BMW 1 3 Series E87 LCI E90 N43 118i 318i Petrol ECU Kit has been configured for petrol fuel, which allows for maintaining the correct engine maps and parameters required by the factory BMW configuration.

In practice, this translates into proper engine starting, correct throttle response, stable idle speed, and cooperation with other vehicle systems, such as safety systems or onboard electronics.

Application in BMW service and diagnostics

The ECU DME kit with the CAS3 module and keys is particularly useful in situations where there has been damage to the factory controller, communication problems with the immobilizer, or failed programming attempts. The set enables:

• performing a comprehensive repair of the engine control system,
• testing the electrical installation and bus communication in BMW 1 and 3 Series vehicles,
• restoring the configuration that allows for the correct startup of the petrol unit.

As a result, it is a valuable solution for both professional service centers and specialized workshops dealing with BMW electronics.

Product condition and selection of used electronics

The offered set comes from the group of used automotive electronics, which allows for economical vehicle repair while maintaining the original BMW specification. In the case of engine controllers and CAS3 modules, correct matching to the body version, powertrain, and fuel type is crucial, so it is worth verifying compatibility with your specific model before installation.

If you want to better understand when choosing a used engine controller, comfort module, or sensors is justified, the following article will be helpful: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

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 additional controllers, management modules, or control systems, check the available parts in the BMW Computers and Controllers category.