Mercedes W169 A160 CDI OM640.941 82HP Engine ECU Kit A6401501091 Key Automatic

The ECU Engine Control Unit with Key for Mercedes W169 A160 CDI is a practical solution for owners of models with the OM640.941 engine and automatic transmission. The set comes from the Electronic Control Modules and Controllers group, allowing for a cohesive replacement of components responsible for engine management and immobilizer operation. This is a beneficial option for drive electronics repairs when you want to maintain the original operating logic of the system.

Specifications and technical data

• SKU: A6401502379-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6401502379
• Substitutable numbers: A6401502379, A 640 150 23 79, 0281012254, 0 281 012 254, A1695451508, A 169 545 15 08, A1695452932, A 169 545 29 32, KZ
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Application and Compatibility with Mercedes W169 A160 CDI

The presented ECU set is designed for Mercedes A-Class W169 A160 CDI cars with the OM640.941 engine producing 82 HP, equipped with an automatic transmission. This selection ensures software parameter consistency with the engine's characteristics and gear shifting logic, which is important for the smooth operation of the powertrain and correct functioning of safety features.

The set includes the engine control unit along with its paired key, ensuring the immobilizer system remains compatible with the vehicle's electronics. This simplifies the adaptation process in the car and reduces the need for additional programming compared to purchasing individual, unpaired modules.

Technical Characteristics of the ECU Set

As an element from the Electronic Control Modules and Controllers category, the set is responsible for precise control of injection, boost pressure, fuel dosage, and cooperation with the automatic transmission. The appropriate configuration for the specific OM640.941 diesel engine allows for the preservation of the unit's original operating maps, which translates to predictable performance and stable running characteristics.

The inclusion of the key in the set is important for security – the control unit and the key are logically linked, making it easier to restore the vehicle's functionality after an engine electronics failure or immobilizer issues. The set is particularly useful in situations where the existing ECU has been damaged, flooded, or experiences difficult-to-diagnose communication errors.

Benefits of Using a Used ECU Set

Choosing a used ECU set with a key for the Mercedes W169 A160 CDI can significantly reduce repair costs compared to purchasing a new control unit. At the same time, you maintain the original electronic architecture of the vehicle, which is beneficial for future diagnostics and servicing. This solution is especially recommended for post-accident repairs, after flooding, or for wiring harness damage, when replacing the entire set is more cost-effective than a lengthy search for a single fault.

To better understand how to safely select and install used control modules, it is worth reading the Global Parts guide: Used Car Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?. The article discusses, among other things, selection by OEM numbers, hardware and software compatibility issues, and practical installation tips.

Designed for Automatic Transmission

The set is designed to work with an automatic transmission, which is crucial for proper communication between the engine control unit and the transmission control module. The correct matching of the ECU software to the automatic transmission's characteristics affects:

• correct gear shift points and smooth gear changes,
• stable idle speed when starting and stopping the vehicle,
• proper cooperation with driver assistance systems.

This makes the set particularly useful for replacing a control unit in vehicles experiencing communication problems between the engine and the automatic transmission, manifesting, for example, as limp mode or incorrect gear shifting.

Support with Selection and Other Mercedes Modules

When selecting a control unit, it is advisable to verify compatibility by OEM number and interchangeable part numbers to ensure the set is suitable for your specific Mercedes configuration. If in doubt, it is helpful to compare the markings with the currently installed module and consult with a diagnostic technician or car electrician.

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