Mercedes W213 E220 CDI OM654 194HP Engine ECU Kit A6549001400 Key Lock Automatic

Mercedes W213 E220 CDI OM654 194HP Engine ECU Kit is a professional solution designed for vehicles equipped with an automatic transmission. The set belongs to the Electronic control modules and ECUs group, which allows for a consistent match of components responsible for managing engine operation and the immobilizer system.

Specifications and technical data

• SKU: A6549001400-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6549001400
• Substitutable numbers: A6549001400, A 654 900 14 00
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the ECU kit

The presented control set is dedicated to the Mercedes W213 model in the E220 CDI version with the 194 HP OM654 engine, where maintaining the compatibility of the powertrain electronics with other vehicle systems is crucial. Integrating the engine ECU with the key and lock allows for maintaining the consistency of the immobilizer coding, which in practice facilitates the adaptation process in the car and reduces the risk of issues with starting the engine.

In the case of modern Mercedes diesel engines, a correctly selected ECU module has a direct impact on engine stability, power delivery refinement, cooperation with the automatic transmission, and communication with other controllers in the vehicle (including safety and comfort systems).

Benefits of using a complete ECU kit with a key

Using a complete engine ECU kit along with security components offers a number of practical benefits in service and operation:

• Powertrain electronics consistency – the ECU, key, and lock come from a single system, which facilitates integration with the vehicle's wiring.
• Reduction of the need for time-consuming programming – in many cases, this shortens workshop labor time and reduces configuration costs.
• Better compatibility with the automatic transmission – the ECU is prepared to work with an automatic gearbox, which is important for smooth gear shifting.
• Possibility of use as a base for further configuration – the set can be software-matched to the specific equipment specification of the vehicle.

Application in vehicles with automatic transmission

In Mercedes E-Class W213 cars with the OM654 engine, the engine ECU working with an automatic transmission is responsible not only for fuel dosage and boost control but also for data exchange with the transmission module. This allows for precise adjustment of gear shift timing to load, driving mode, and road conditions.

A correctly selected ECU kit from this group allows for maintaining factory control strategies, which translates into predictable vehicle behavior, proper throttle response, and correct cooperation with driver assistance systems. This is particularly important in premium-class cars, where high standards of powertrain refinement are expected.

Characteristics of the used product

The offered set comes from the used Electronic control modules and ECUs segment, which allows for economical repair or replacement of a damaged controller while maintaining an appropriate level of quality. This type of solution is often chosen by workshops specializing in automotive electronics and by users looking for a reasonable compromise between cost and functionality.

Before installation, it is recommended to verify compatibility with the specific vehicle configuration and perform the necessary diagnostic and adaptation procedures using an appropriate service tester.

Selection support and technical knowledge

When working with powertrain electronics, correct module selection based on the OEM number, interchangeable numbers, and vehicle configuration is particularly important. To better understand the principles of selection, programming, and installation of such components, it is worth checking the practical tips in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

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