My Peugeot 208 1.4 petrol runs at around 96-98 degrees and the engine is using a lot of coolant every week. I've called out the AA, but they say this operating temperature is normal. The temp doesn't go any higher and otherwise drives fine, but I'm concerned after seeing a wet patch under the car when the engine is switched off. The wet patch is always underneath the coolant bottle/pipes and makes me think that it’s not the radiator or water pump. Peugeot have washed their hands of it after finding no fault. Any ideas?