Thinkobd 500 clearing an emissions warning light on Mercedes

[@kulatensaid7535]

hi do i have to turn the car on or not?

[@justkidding9751]

You plug it in with the ignition off, the machine will then tell you when to put the ignition on. Then you can scan for the issue.

[@kulatensaid7535]

thank you very much.

[@easyenglishwithmovies]

Awesome