Bosch MED17.4 - TC1766 FAQ & Support

Bosch MED17.4

Errors

We do not currently have any known errors for the Bosch MED17.4. 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

About the Control Unit

The Bosch MED17.4 is a sophisticated Engine Control Unit (ECU) primarily utilized in 1.6 THP (Prince) engines. Equipped with the Infineon Tricore TC1766 processor, this unit manages gasoline direct injection, variable valve timing, and turbocharger pressure. It is widely recognized for its efficiency in PSA (Peugeot/Citroën) and BMW/Mini vehicles, balancing high performance with strict environmental standards.

Common Car Models

Peugeot 207 RC / GTI
Peugeot 308 1.6 THP
Citroën DS3 1.6 Turbo
Mini Cooper S (R56)
Citroën C4 VTS
Peugeot RCZ 1.6 THP
Mini Countryman (R60)

Technical Concepts Explained

TC1766 (Tricore): A high-performance 32-bit microcontroller architecture by Infineon, specifically designed for automotive powertrain applications requiring high computational power and safety.
Checksum: A mathematical value used to verify the integrity of the data within the ECU. If the checksum is incorrect after tuning, the engine may not start or may enter a limp mode.
TPROT: Short for Tricore Protection, this refers to the security levels implemented by manufacturers to prevent unauthorized reading or writing of the ECU's internal flash memory.