BMW F20 F30 LCI 118i 318i B38 136HP ECU Kit DME 8691836 Key FEM Lock Manual

BMW F20 F30 LCI 118i 318i B38 136HP ECU Kit DME Key FEM Lock Manual is a complete engine control unit kit for petrol engines with a manual transmission, designed for modern BMW 1 and 3 Series LCI models. The set includes the DME module along with immobilizer components, which facilitates a consistent, professional replacement of the vehicle's control electronics. This solution is particularly beneficial for major engine control system repairs or when replacing a damaged ECU.

Specifications and technical data

• SKU: 8691836-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8691836
• Substitutable numbers: 8486839, 12148486839, 8674265, 12148674265, 8648362, 12148648362, 8654454, 12148654454, 8691836, 0 261 S18 529, 0261S18529, 6843901, 61356843901
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the ECU kit

The presented ECU kit is designed to work with the B38 136 HP petrol engine in BMW F20 and F30 LCI models in 118i and 318i versions with a manual transmission. It is responsible for precise control of the engine's operation, including fuel injection, ignition, and monitoring of key engine parameters. Integrating the DME controller with the vehicle's security system components ensures consistent operation of the drivetrain and comfort electronics.

Electronic control modules and controllers in BMW

The kit belongs to the Electronic control modules and controllers category, which are a central element of the electrical architecture of modern BMWs. A correctly selected and configured engine controller ensures stable engine operation, proper communication with other modules in the vehicle, and the ability to perform diagnostics using factory software. Replacing the complete ECU kit with associated immobilizer components reduces the risk of issues with key, FEM module, and steering lock synchronization.

Benefits of using a complete DME kit with FEM and lock

Using a complete engine controller kit with the FEM module, key, and lock allows for:

• maintaining the integrity of the vehicle's security system without the need for deep software intervention,
• facilitating the adaptation process in the vehicle after the failure of the original controller,
• reducing diagnostic and programming time compared to replacing individual components,
• maintaining compatibility with the electrical architecture of F20/F30 LCI models with the B38 engine and manual transmission.

For workshops specializing in the BMW brand, such a kit is a practical solution for repairs following electrical damage, controller flooding, or communication issues within the vehicle's network.

Characteristics of the used product

The offered kit comes from dismantling, which allows for an economical repair while maintaining the manufacturer's original specifications. A used control module from the same generation of BMW vehicles is often the preferred choice when compatibility with the factory installation and cost reduction compared to new parts are priorities. In the case of control electronics, it is essential that it comes from a vehicle with a similar drivetrain configuration, which this kit fulfills thanks to its design for a petrol engine paired with a manual transmission.

Technical support and knowledge about BMW modules

When planning the replacement of an engine controller, FEM module, or other electronic components in BMW 3 and 5 Series, it is worth using reliable sources of information. Practical tips on diagnostics, selection, and installation of used modules can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using parts from dismantling?, which discusses, among other things, issues related to engine controllers and comfort modules.

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