If you need to hook up a diagnostic code reader or scanner to your Smart car you will need to know where the diagnostic port is located. Here we have all Smart diagnostic port pictures which should tell you straight away where to look. A diagnostic port is also known as an OBD2 port or EOBD port which is used for the purpose of communicating with a vehicle to diagnose faults or reprogram modules within the vehicle. The diagnostic port is a direct link to the Smart car ECU.

Smart Fortwo
Smart Fortwo 1st generation OBD2 diagnostic port location (1998 - 2007)
Smart Fortwo 2nd generation OBD2 diagnostic port location (2007 - 2014)
Smart Fortwo 3rd generation OBD2 diagnostic port location (2014 -
 
Smart Roadster
Smart Roadster OBD2 diagnostic port location (2003 - 2006)
 
Smart Forfour
Smart Forfour Mk1 OBD2 diagnostic port location (2004 - 2006)
Smart Forfour Mk2 OBD2 diagnostic port location (2014 -