Atego 2 818 Coolant issue

[Atego_2_Nej]

Although I can't seem to see any coolant leaking anywhere on the floor, I'm losing a lot of coolant. I have to top up a litre or so every day. Any ideas?

 

[AndySlade]

Bad head gasket or leaking through the water pump with engine running. Also check for leaks around the thermostat temperature sensor

 

[Atego_2_Nej]

Thanks mate, where would the thermostat temp sensor be located?