[cheshired5]

It will be a while before I could get data on mine.
The FPR does sound suspect though so perhaps check Vida Information >Specifications Electrical for the available data to compare.

Re the thermostat, looks like it's been separated in the past and the seal has been breached. Best to replace the whole unit but genuine Volvo is £100 ish if not more.

I have a brand new Wahler Thermostat, housing and coolant temperature sensor unit you could have for £75 delivered.
Wahler make the genuine one and it's identical apart from "Volvo" is ground off the housing and it's in a Wahler box.
Still has the Volvo part number stamped on the housing and the coolant temperature sensor and comes with a new gasket.

I bought it a while ago but they're just too damn reliable so never needed to fit it.