Replaced coolant header tank, Coolant Warning still displaying on DIS
I've been getting a coolant warning on my DIS for a while, I thought that the problem was the sensors located inside the coolant bottle (coolant level sensor). I bought a new coolant bottle and replaced the old one today, I topped up the coolant and went above the max mark by accident, thinking that it was going to go down. After replacing the coolant tank I started the car up and straight away I heard the beeps and the "Coolant" warning message flashing on the DIS, the temperature stays on zero on the temperature gauge, and the fan in the front with the engine near the radiator comes on at full blast. I drove the car just round the block to see if it might settle, but it hasn't yet.
So, the sensors in the coolant tank wasn't causing the problem what else could it be?
I spent most of the day trying to research another problem and this and have came up with it could maybe be the "Coolant Temperature Sensor" (CTS) or maybe the Thermostat, these are guesses though. anyone have an idea of what one is more likely to be the cause of the problem?
I also have another problem that I don't know if it's related or not, but is to do with my demister and fans are not working either. Do you think the problems could be related or are likely to be seperate?
Thanks for any help, it will be greatly appreciated.
Oh, I just thought I'll add a link to the other thread I made about my other problem incase anybody wants more info about that or can help with that problem. thanks