2001 Xsara overheating

[MattBLancs]

Sometimes it's not obvious what you should check first, and sometimes it's easy to doubt things you test and find are a symptom rather than the fault.

I'd try an expansion cap next, leave the thermostat be for now.

Radiator fan on at 87°C sounds a bit low if anything, would have said 95 - 100° C ?? Will see if I have the book figure - for 306, don't have any Xsara specific to hand.

[MattBLancs]

Haynes 306 manual says for TU petrol engines, thermostat opening 89°C, fully open 99°C

Can't see any data on radiator fan thermal switch but would be surprised if was lower set point than the thermostat (as fan likely to run most of the time, surely?)

[CitroJim]

Haynes 306 manual says for TU petrol engines, thermostat opening 89°C, fully open 99°C

Can't see any data on radiator fan thermal switch but would be surprised if was lower set point than the thermostat (as fan likely to run most of the time, surely?)

It's set to be quite hot in my experience Matt... TU fans don't run very often in practice in the UK generally...