Where is the coolant bleed nipple on a 307?

The coolant bleed nipple on a Peugeot 307 is typically located on the top of the engine near the thermostat housing. To access it, you may need to remove some engine covers or components. Bleeding the coolant system involves opening this nipple to release trapped air after refilling the coolant. Always refer to the vehicle’s service manual for specific details and procedures.