Find The OBD Socket

600cc & 800cc CDI Smart City
Up to late 2002

RHD – Look under the dashboard on the passenger side, it is located on the fuse box.
LHD – Look under the dashboard on the driver side, it is located on the fuse box.

This shows the OBD socket with a Trust Plug fitted.

700cc & 800cc CDI Smart Fortwo
2003 Onwards

Look in the small cubby hole under the dash situated between the steering wheel and the door on the driver side of the car. It is at the back and located underneath a flap.

This shows the OBD socket with a Trust Plug fitted.

451 Smart Fortwo

Look under the dashboard on the driver side towards the middle of the car, it is situated behind a flap that folds down to reveal the connections.

This shows the OBD socket in a right hand drive.

Smart Roadster 452

Look under the steering wheel and you will find a long plastic cover just above your knees, swing the cover down…

…and you will find the OBD socket situated behind it.

This shows the OBD socket with a Trust Plug fitted.

Smart Fortwo & Forfour 453

Look over on the left hand side, just under the dashboard.

Pull back the cover to reveal the OBD2 socket.

Smart Forfour 454

Look under the dashboard on the driver side towards the middle of the car, it is situated behind a flap that folds down to reveal the connections.

Thanks to Chris C for the picture

Hashtag 1

Over on the right…

…under the dashboard…

…next to the ambient light for the footwell…

…it’s right there.