Hot starting problem 52-reg 1.2 16v

[c__w]

I've got a 1.2 Clio 16v which runs fine with no error lights etc and it starts and runs from cold perfectly but it has developed a problem whereby it struggles to start when hot, usually if it's switched off and restarted within the hour. It can take quite a number of turns of the starter to fire and just sounds like it never will - although it does eventually - and then runs fine?

 

[MrMark]

coolant temp sensor?

 

[c__w]

coolant temp sensor?

I'll take a look at this thanks; do you know where on the engine this sensor is? also what expected values might be for it?