BMW 1 3 Series E87 E90 116i 316i 1.6 N45 Petrol ECU KIT DME 7550688 CAS2 + Key

BMW 1 3 Series E87 E90 116i 316i 1.6 N45 Petrol ECU KIT DME CAS2 + Key is a practical solution for workshops and users looking for a proven set for engine electronics management. The set comes from the Computers and Controllers group and is designed for petrol-powered units, which facilitates selection during repairs and replacements. It is a functional base for restoring the proper operation of the control system in BMW vehicles with this engine type.

Specifications and technical data

• SKU: 7550688-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7550688
• Substitutable numbers: 1214756842712147550688026120903661356964051, 75684277550688, 0261209036, 6964051, 12147550688, 7550688, 12147545046, 7545046
• Fuel type: Petrol
• Category: Control Modules

Application of the BMW 1 3 Series E87 E90 116i 316i 1.6 N45 Petrol ECU KIT DME CAS2 + Key

The presented set includes the DME engine controller along with the CAS2 module and a matched key, which allows for a seamless transfer of the entire start authorization system between vehicles. For BMW 1 Series E87 and 3 Series E90 with the 1.6 N45 petrol unit, such a set significantly simplifies service work related to replacing a damaged controller or resolving immobilizer issues.

Since the components come from a single vehicle, compatibility between the engine controller, the CAS2 module, and the transponder in the key is maintained. This reduces the need for additional programming and allows for faster restoration of the electronic system's efficiency.

Benefits of using a complete set

Choosing a complete BMW 1 3 Series E87 E90 116i 316i 1.6 N45 Petrol ECU KIT DME CAS2 + Key offers a number of practical advantages:

• consistency of components responsible for starting and vehicle authorization,
• reduced risk of software conflicts between the controller and the CAS2 module,
• possibility of effective vehicle repair after engine electronics failure,
• easier diagnostics in case of previous ECU–immobilizer communication problems.

For workshops specializing in the BMW brand, such a set is a convenient service solution, allowing for reduced vehicle downtime and optimized repair costs. The used ECU set also represents a reasonable cost alternative to new components while maintaining the functionality required for daily operation.

Technical characteristics in the context of a petrol engine

The discussed set is intended for vehicles powered by petrol, which is crucial when selecting a controller for a specific power unit. The DME controller works with the 1.6 N45 engine equipment, managing fuel injection, ignition, and a range of engine operating parameters.

The CAS2 module acts as the central element of the authorization system, communicating with both the key and the engine controller. Proper matching of these components is essential for the vehicle to correctly recognize the key and enable starting. Using a complete set minimizes the risk of errors related to software or configuration incompatibility.

Practical installation and service tips

When installing the BMW 1 3 Series E87 E90 116i 316i 1.6 N45 Petrol ECU KIT DME CAS2 + Key in a BMW 1 Series or 3 Series with a 1.6 N45 engine, it is worth paying attention to several aspects:

• before removing the old controller, it is recommended to perform full diagnostics to confirm the source of the fault,
• during installation, exercise extreme caution with electrical connectors to avoid damaging pins and wiring harnesses,
• after installing the set, it is advisable to perform adaptation and clear error codes using an appropriate diagnostic tester,
• in the case of additional security systems in the vehicle, it is worth verifying their compatibility with the newly installed CAS2 module.

This approach allows for stable operation of the engine control system and reduces the risk of recurring electronics-related problems.

If you are planning a comprehensive repair or upgrade of your BMW's engine electronics and need other elements from the same group, such as controllers, engine management modules, or control units, check the available parts in the BMW Computers and Controllers category.

Used control electronics – what to look for

When choosing a used BMW 1 3 Series E87 E90 116i 316i 1.6 N45 Petrol ECU KIT DME CAS2 + Key, it is important to verify compatibility with the specific engine version and vehicle year. In workshop practice, a well-matched set allows for efficient resolution of starting problems, communication errors in the vehicle network, or improper engine unit operation.

To better understand when choosing used electronics is justified and how to safely select an engine controller for a specific car, it is worth reading the guide: A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?