A method for processing Car2X messages by a processing device designed to receive and process messages, the construction of which is defined according to different standards, preferably according to a first standard and a second standard, including: recording of the message by the processing device, identifying the standard used by the message, forwarding the message to an application unit of the processing device if the message uses the standard for which the application unit is designed, or otherwise creating a new message from the received message so that it can be processed by the application unit. The new message is created in accordance with at least one previously known content item within the received message.