Audi A4 B8 1.8 TFSI CDHA 160HP Engine Control Unit ECU Kit 8K1907115C Manual

Audi A4 B8 1.8 TFSI CDHA 160HP Engine Control Unit ECU Kit is a key component of the engine management system, designed for the petrol version with a manual transmission. This used module from the Electronic control modules and controllers group allows for restoring proper engine operation, stabilizing combustion parameters, and ensuring the correct functioning of related vehicle systems. It is a solution for users who expect proven electronics at a reasonable price, while maintaining Audi's factory control logic.

Specifications and technical data

• SKU: 8K1907115C-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K1907115C
• Substitutable numbers: 8K1907115C, 8K1 907 115 C, 8K1907115, 8K1 907 115, 0261201959, 0 261 201 959, 8K0909131C, 8K0 909 131 C
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the engine control unit

The presented engine control unit is dedicated to the 1.8 TFSI CDHA unit in the Audi A4 B8 model with petrol fuel supply and a manual transmission. It is responsible for precise control of fuel injection, ignition, engine accessory operation, and communication with other vehicle modules. A correctly selected ECU allows for maintaining the original engine performance characteristics, which translates into stable power, smooth operation, and predictable throttle response.

The module is an element of Audi's factory electronic architecture, ensuring compatibility with the vehicle's installation, wiring harness, and communication bus. This is particularly important when replacing a damaged controller, where maintaining serial settings and system logic is a priority.

Benefits of using a used ECU in the Audi A4 B8 1.8 TFSI

Using a used engine control unit in the Audi A4 B8 1.8 TFSI CDHA allows for significant repair cost savings compared to purchasing a new module, while maintaining full system functionality. A properly selected controller:

• enables the restoration of proper engine starting and operation after an electronics failure,
• supports correct fuel metering in the petrol engine,
• ensures cooperation with the manual transmission according to factory specifications,
• maintains communication with other modules from the Electronic control modules and controllers group, such as safety or comfort systems.

For workshops and individual users, this means the possibility of a quick and effective repair without the need for costly interference with the entire vehicle installation.

Selection and integration with the vehicle's electronic system

When selecting an engine control unit for the Audi A4 B8 1.8 TFSI CDHA, it is crucial to match it to the engine version, fuel type, and transmission type. This unit is intended for a petrol engine working with a manual gearbox, which minimizes the risk of communication issues between modules and facilitates the adaptation process in the vehicle.

In practice, installing such an ECU usually requires:

• proper connection to the existing wiring harness,
• performing adaptation procedures and potential programming according to the specific vehicle's equipment,
• verifying the correctness of communication with other controllers in the vehicle's network.

Thanks to maintaining compliance with Audi's architecture, the module can be integrated into the existing system without the need for mechanical modifications, which shortens repair time and simplifies service maintenance.

Used condition and practical operational aspects

The offered controller comes from the secondary market, making it an attractive cost alternative to new components. A used module allows for economical vehicle repair, especially in the case of older Audi A4 B8 models, where optimizing service budgets is of great importance. At the same time, the factory design and operating logic are preserved, which promotes trouble-free operation after proper installation and configuration.

To better understand when choosing a used engine controller is justified and how to safely approach buying second-hand electronics, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Expanding repairs in the area of Audi engine control

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

Additional tips regarding the conscious selection of parts from the secondary market, service cost optimization, and assessing the profitability of repairs are also provided in the guide: Used parts – your guide to the best offers in the automotive store.