I've started going through the Micra's list of needs and wants to make it decent again. I started off with something easy*
Yup, looks good.
And in with minimal* hassle. I was rather surprised. You have to remove the battery and dislodge the air intake. You can't remove it because it is bolted in two places, 1 of which is underneath the expansion tank. Fortunately, both are plastic and flexible, and some persuasion got the two to co-operate.
The water in the old tank was mostly murky sludge. When I opened up the radiator, I was pleasantly surprised with fresh green coolant, which was lucky as I didn't have any to hand.
I put in some water from the Brita jug and then gave the car a run to get it up to temperature. It seems to be gradually turning green, which is a bonus!
So I can strike that off the list of things to do. I'll attack the welding some point this weekend.
As an additional plus*, I've discovered the car DOES have a low fuel light, because I saw it briefly flash 1 morning last week. That's the first time since I bought it in 2018 I've ever seen it work. You can barely see the warning light's outline on the binnacle