Where is the radio code for the C3?

The radio code for the Citroën C3 can usually be found in… vehicle manual or in documents that come with the car, such as documentation folders or a specific card with the code. If you do not have access to these materials, it is possible to recover the code using diagnostic tools at authorized or specialized workshops, which perform an electronic reading of the system to unlock it.

There are also videos and tutorials online that show how to correctly enter the code to unlock the C3 radio. If the code is entered incorrectly several times, the radio may lock, requiring a specific unlocking procedure, which should usually be performed by professionals.