The international standard requires all OBDII connectors to be within 100 cm of the driver’s seat and accessible without tools.
Start by looking under the dashboard on the driver’s side, left and right, otherwise rarely on the passenger side in the glove compartment or in the center console.
Don’t forget to look under small doors.
If you can’t find it
1- Use the online tool KlavKarr to search your car and see pictures to help you find it
2- search in Google with "location ports OBD Your model of your car and year"
Ex: location ports OBD audi A4 2016
3- ask your dealer or mechanic
About the KlavKarr universal online tool
The KlavKarr website offers database online with pictures to locate the OBDII port of your car year model.
link ot the website -> Where is my OBD2 port in my car ? (klavkarr.com)
Do you have a Tesla?
Read more about particularity of tesla installation
Does my car have an OBDII connector? ( Tesla)
Image of an OBD port usually located under or near the steering column
