Mines red. Tbh as long as you don't mix the stuff you can stick anything in that says IOA on it, the proper coolant recommended by renault is type D though.
Without trying to sound rude, probably best to just leave it if you don't know where the thermostat housing is, especially since you need to drain it (I assumed it was drained).
No need to worry bout sounding rude- i dont take offence easy, and your not rude
Thats the problem with no Haynes manual around. I know my way around a Citroen DS3 pretty well, and know quite a lot bout the THP engine- nothing about the VVT 2.0 Renaulsport tho
Am learning a little at a time
Yes- will leave well alone the coolant i think. looks and tastes clean as a whistle- new pipework too
Where is the thermostat housing. All Ive found so far is brake fluid, coolant top up, and oil
Mind you, only spent about 2 minutes under the bonnet so far.... the weekend beckons altho a machine polish first