When I adjust the drivers set in Renault megane coupe airbag light comes on goes off when push seat right back again?

The airbag light in your Renault Megane Coupe may be triggered by the seat adjustment due to a faulty connection or sensor related to the seat's airbag system. When you adjust the seat, it could be causing a momentary disruption in the connection, which turns the light on. Pushing the seat back may restore the connection, turning the light off again. It's advisable to check the seat wiring and connectors for any damage or looseness, or consult a professional for a thorough inspection.