How do you change a sump gasket on a Renault megane scenic?

To change the sump gasket on a Renault Megane Scenic, first ensure the engine is cool and safely raise the vehicle. Drain the engine oil and remove the oil pan by unscrewing the bolts securing it. Clean the mating surfaces thoroughly, apply a new gasket or gasket sealant as required, and reattach the oil pan with the correct torque on the bolts. Finally, refill the engine with oil and check for leaks.