What causes the Peugeot 308 to overheat?

[KyleMarie]

The reason for the Peugeot 308's high water temperature is that a coolant leak or insufficient coolant can prevent the engine from cooling properly, leading to elevated engine temperature. Additionally, a dirty engine radiator can also cause the engine's water temperature to rise. The radiator has many pores formed by cooling fins, which are prone to accumulating lint, sludge, and other debris, reducing ventilation and diminishing cooling efficiency. Poor radiator cooling leads to insufficient engine cooling, resulting in increased engine water temperature. Extended information: Excessive engine water temperature can cause the engine's cylinder head to warp. This warping can lead to poor sealing, direct damage to the cylinder gasket, and mixing of engine coolant into the oil passages, reducing the lubrication effectiveness of the oil and further damaging various engine components until the engine experiences boiling over.