BMW 5 Series E60 520i M54 170HP ECU Kit DME CAS2 + Key + Steering Column 7539112

BMW 5 Series E60 520i M54 170HP ECU Kit DME CAS2 + Key + Steering Column is a complete electronic set from the Computers and Controllers group, designed for the engine management and security system in the BMW 5 Series E60 520i with the M54 engine. It includes the DME MS45.0 engine control unit, CAS2 module, key, and steering column, providing a cohesive package for professional repair or replacement of the factory system.

Specifications and technical data

• SKU: 7539112-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7539112
• Substitutable numbers: 12147549390, 7549390, 5WK93014 DME MS45.0, 32306770713, 6770713, 61126928379, 6928379, 12147527072, 7527072, 61356943851, 6943851, 12147539112, 7539112, 32306769861, 6769861, 32306765969, 6765969, 32306767982, 6767982
• Category: Control Modules

Application of the ECU DME CAS2 kit with steering column

The presented set is dedicated to the petrol BMW 5 Series E60 520i with the 170 HP M54 engine and includes key components of the control circuit and ignition authorization. Combining the DME controller, CAS2 module, key, and steering column allows for maintaining system consistency, which significantly facilitates the installation and configuration process in the vehicle.

A package completed in this way is particularly useful in situations where engine electronics have been damaged, there are issues with CAS–DME communication, or it is necessary to replace several elements simultaneously following a failure, water damage, or an unsuccessful programming attempt.

Construction and components of the set

The ECU kit includes:

• DME engine control unit in the MS45.0 version, responsible for managing the operation of the M54 unit,
• CAS2 module performing key authorization and ignition control functions,
• key matched to the CAS2 module,
• steering column integrated with the locking mechanism and cooperating with the CAS system.

This combination of components ensures data consistency within the security system, which in many cases limits the scope of necessary programming and speeds up the restoration of full vehicle functionality.

Benefits of using a complete set

Choosing a complete ECU kit with CAS2, key, and steering column for the BMW E60 520i M54 offers a number of practical advantages:

• electronic consistency – the elements come from a single system, which minimizes the risk of conflicts between the engine controller and the CAS module,
• simplified workshop installation – the mechanic receives a ready-to-use package that can be adapted instead of selecting each module separately,
• possibility of effective vehicle repair after electrical damage or coding errors,
• reduction of diagnostic time related to data mismatch between the key, CAS, and DME.

For workshops specializing in the BMW brand, such a set is a convenient solution for complex engine electronics and starting system faults.

Product characteristics and fitment

The product comes from the BMW OE line, which means factory fitment for the E60 520i platform with the M54 engine. The set is classified in the Computers and Controllers group, and its design is prepared for cooperation with the original vehicle wiring, communication bus, and factory security systems.

Before installation, it is recommended to verify compatibility by OEM part number and interchangeable numbers, as well as to consult with an automotive electrician regarding potential programming or adaptation to the specific car configuration.

Professional use and user tips

The ECU DME CAS2 kit with key and steering column is particularly recommended for services dealing with BMW electronics that need a complete solution to restore the efficiency of the engine control and starting system. In the case of installation in a used vehicle, it is worth performing a full computer diagnostic after installation to confirm the correct communication of all modules.

If you are considering using second-hand electronics in your car and want to better understand when this is a reasonable solution and how to choose the right engine controller or comfort module, 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 control and security system area in your BMW and need other elements from the same group, such as additional controllers, management modules, or control systems, check the available parts in the BMW Computers and Controllers category.

For users who want to deepen their knowledge on the safe selection of used electronic and mechanical components in online sales, the following guide may be useful: Safe purchase of used car parts online – a step-by-step guide.