Bosch MEVD17.4.4 - TC1793 FAQ

Bosch MEVD17.4.4 - TC1793

Errors

We do not currently have any known errors for the Bosch MEVD17.4.4 - TC1793. 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 MEVD17.4.4 - TC1793

About the Control Unit

The Bosch MEVD17.4.4 is a sophisticated engine management system based on the Infineon TriCore TC1793 microprocessor. Primarily utilized in PSA Group (Peugeot, Citroën, DS) vehicles, it is designed to manage high-performance direct injection petrol engines. This ECU is known for its complex tuning protections and high-speed data processing capabilities, ensuring optimal fuel efficiency and emission control.

Common Car Models

Peugeot 208 GTi
Peugeot 308 II (1.6 THP)
Citroën C4 Picasso
Citroën DS3 Performance
DS 7 Crossback
Opel Grandland X (1.6 Turbo)
Peugeot 508 (1.6 PureTech)

Technical Concepts Explained

TriCore TC1793: A high-performance 32-bit microcontroller optimized for automotive powertrain applications, featuring integrated Hardware Security Modules (HSM).
SGW (Secure Gateway): A security module found in modern vehicles that acts as a firewall, protecting the internal CAN-bus network from unauthorized diagnostic or tuning access.
Checksum: A mathematical value used to verify the integrity of the ECU's software. If the data is modified without a correct checksum calculation, the engine will not start.