Citroen C3 Engineering Mode Code -
📟 ➡️ Press and hold the “MENU” button (or “SETUP”), then enter CRD or 0205 (varies by model/year).
📌 Code can vary by head unit (NavDrive, RCC, NAC, SMEG, etc.). citroen c3 engineering mode code
Alternatively, try this sequence on the radio/touchscreen: 🔢 (press in order while in service menu). 📟 ➡️ Press and hold the “MENU” button