How do you change lower engine mount on Peugeot 307?

To change the lower engine mount on a Peugeot 307, first, secure the vehicle on level ground and lift it using jack stands for safety. Remove any components obstructing access to the mount, such as the undertray. Then, unbolt the old mount from the engine and subframe, and replace it with the new mount, ensuring all bolts are torqued to the manufacturer's specifications. Finally, reassemble any removed components and lower the vehicle.