Where does the gearbox oil go in a Renault megane automatic?

The gearbox oil for a Renault Megane automatic can be found in the sump. To access the sump, you will need to remove the undercarriage of the vehicle. Once you have removed the undercarriage, you will see the sump. The sump is a metal container that is attached to the bottom of the transmission. There will be a drain plug on the bottom of the sump. Remove the drain plug and allow the gearbox oil to drain out. Once the gearbox oil has drained out, you can reinstall the drain plug and replace the undercarriage.