How do you replace Renault 1.5 crankshaft seal?

To replace the crankshaft seal on a Renault 1.5, first, ensure the engine is cool and disconnect the battery. Remove any components obstructing access to the crankshaft, such as the drive belt and pulley. Then, carefully pry out the old seal using a seal puller or a suitable tool, clean the sealing surface, and install the new seal, ensuring it's seated evenly. Finally, reassemble all removed parts, reconnect the battery, and check for leaks.