If you only view diagnostics, no. If you change a configuration parameter and cause a malfunction, the dealer can see a "modification log." Citroen’s warranty does not cover owner-induced software corruption.
: Frequently cited for PSA (Peugeot/Citroen) vehicles like the C3 and 5008. citroen c3 engineering mode code
Alternatively, try this sequence on the radio/touchscreen: 🔢 (press in order while in service menu). If you only view diagnostics, no
(the icon that looks like a gear or musical note) for approximately 5–8 seconds. Secondary Method: Common Codes: Let’s assume you own a current-gen
If the long press doesn't work, try tapping the top-right corner of the screen multiple times or holding two fingers on the screen for several seconds. Common Codes:
Let’s assume you own a current-gen Citroen C3 (with the floating roof design and 10-inch touchscreen running firmware version 42.xx or 44.xx). Follow this exact sequence: