Bosch MED17.4.4 FAQ - bFlash Support

Bosch MED17.4.4

Errors

We do not currently have any known errors for the Bosch MED17.4.4. If you encounter an error, please contact our support at Support@bFlash.eu with a screenshot and a detailed description of the problem.

Concerns vehicles from

Further Information on Bosch MED17.4.4

About the Control Unit

The Bosch MED17.4.4 is a sophisticated engine management system primarily utilized in PSA Group (Peugeot, Citroen, DS) vehicles. It is designed to manage Gasoline Direct Injection (GDI) engines, optimizing fuel efficiency and performance while adhering to strict emission standards. This ECU is based on the powerful Infineon TriCore TC1793 microcontroller, which provides high computational speed and advanced security features suitable for modern automotive requirements.

Common Car Models

Peugeot 208 (1.2 PureTech)
Peugeot 308 (1.6 THP)
Citroen C3
Citroen C4 Cactus
DS 3 Crossback
Peugeot 2008
Citroen Berlingo

Technical Concepts Explained

TriCore TC1793: A high-performance 32-bit microcontroller architecture developed by Infineon. It combines the strengths of a RISC processor, a digital signal processor (DSP), and a microcontroller on a single chip, making it the "brain" behind the Bosch MED17.4.4.
Checksum: A mathematical value calculated from the data in the ECU's memory. It ensures that the software has been correctly written and has not been corrupted. bFlash automatically handles checksum corrections during the writing process to prevent start-up failures.
Bench Mode: A communication method where the ECU is removed from the vehicle and connected directly to the tuning tool. This allows for a Full Backup of the memory without needing to open the ECU casing, preserving the structural integrity and warranty of the unit.

Bosch MED17.4.4 - TC1793

Bosch MED17.4.4

Errors

Concerns vehicles from