BMW E81 E87 LCI E90 116i 316i 115HP N45N ECU Kit DME CAS3 Lock + Key 7581848

BMW E81 E87 LCI E90 116i 316i 115HP N45N ECU Kit DME CAS3 Lock + Key is a complete set from the Electronic Control Modules and Controllers category, designed to support the N45N engine unit in selected 1 and 3 Series models. The kit ensures compatibility between the engine control unit, the CAS3 module, and the lock and key, facilitating professional electronic system repair without the need for time-consuming programming from scratch.

Specifications and technical data

• SKU: 7581848-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7581848
• Substitutable numbers: 12147567321, 7567321, 12147591162, 7591162, 12147591163 12147585435 12147585249, 12147581848, 12147582242 12147581610 12147557951, 12147581609, 7591163 7585435 7585249 7581848, 7582242 7581610 7557951 7581609, 0281015130 61359226238, 0 281 015 130, 9226238
• Category: ECUs & Computer Modules

Application of the BMW E81 E87 LCI E90 116i 316i 115HP N45N ECU Kit DME CAS3 Lock + Key

This set is dedicated to BMW vehicles with the 115 HP N45N engine, used in models such as the 116i and 316i of the E81, E87 LCI, and E90 generations. Combining the DME controller with the CAS3 module and the matched lock and key allows for maintaining the integrity of the vehicle's security system and proper communication within the data bus.

A set configured in this way is particularly useful in situations involving engine controller damage, immobilizer issues, or malfunctions in the starting system. Using a single, consistent set reduces the risk of software conflicts and speeds up the diagnostic and installation process.

Benefits of using an original BMW module

Original BMW solutions in the field of engine control and vehicle security ensure stable engine operation and predictable behavior of all related systems. Using a complete ECU DME kit with CAS3, lock, and key allows you to:

• maintain compliance with the vehicle's factory electronic architecture,
• minimize the need for deep software intervention,
• facilitate adaptation in the vehicle after a previous controller failure,
• preserve the consistency of the immobilizer system and starting functions.

For workshops specializing in the BMW brand, such a kit provides a practical, technically matched solution that helps reduce repair time and limit the number of potential failure points.

Product characteristics and condition

The presented item comes from the Electronic Control Modules and Controllers group and is part of original BMW equipment. The product is used, which in practice means it has been removed from a vehicle and may show signs of wear; however, it retains the functionality required for further operation in another car after proper installation and potential adaptation.

For correct installation, it is recommended to use appropriate diagnostic equipment and have experience working with BMW electronics, particularly in terms of synchronizing the engine controller with the CAS3 module and other security system components.

Technical support and knowledge about BMW modules

If you want to better understand how BMW engine controllers, comfort modules, and the iDrive system work, and how to safely use dismantled parts in the 3 and 5 Series, it is worth checking out proven materials. Practical tips on diagnostics, programming, and selecting 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 dismantled parts?, which helps organize knowledge about BMW electronics.

Additionally, if you are interested in a broader approach to sourcing original used parts – from engine components to electronic elements – you will find useful information on effective One-Stop-Shop purchasing in the guide Comprehensive supply: From the engine to the smallest clip – how to complete used car parts in one place?.

Expanding the control system in a BMW – what else is worth considering?

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

Selecting components from a single, consistent product group facilitates maintaining compatibility between individual modules, which is especially important in modern vehicles where most vehicle functions are supervised by an extensive network of electronic controllers.