How do you change Renault espace heater plugs?

To change the heater plugs in a Renault Espace, first, ensure the engine is off and cool. Disconnect the battery and remove any necessary components to access the heater plugs, typically located near the engine block. Unscrew the old plugs using a suitable socket, taking care not to damage surrounding parts, then install the new plugs by hand to avoid cross-threading. Finally, reconnect everything, ensuring all connections are secure, and reconnect the battery.