here some pics of progress of the engine service works.
Removed top front of engine bay so I can take radiator out if I'm up to it.
Saw a red cap on bottom of inside radiator and I thought that this might be the drain for the radiator. No luck screwing this one out
will have remaining bit on the inside removed by specialist that will clean and rinse the radiator.
then removed the hose from the thermostat... Thermostat looks in good working order and was surely closed up when I removed tube... had a nice shower of coolant removing the thermostat from its housing
. The coolant on the inside was as new. That confirms last service the car had with it's previous owner in march this year. Invoice said they replaced coolant, so that is true
Then removed both coolant sensor so I can replace them both. Blue sensor seems ok, tested it with Ohm meter, from grey sensor I get no reading between the different contacts. I have new one already and will test new one with Ohm meter and see what the results are this afternoon.