Got another little niggle with the car...
Came to it yesterday afternoon after getting back from uni, and the windscreen on the inside had a mega amount of condensation on it and the car had a god-aweful stench of damp in it. The condensation was more severe on the passenger side, and took bloomin ages for it to clear!
I also got the low coolant message on the gid (as per) but I always check it every time (I know the sensor is a bit duffed but still) and I did notice the coolant has dropped about 1cm from where it was about 400 miles back. Probably nothing tbh...
Today again (this morning) the condensation was more apparent on the passenger side, and the damp smell was still there slightly, altho not as bad. I checked the coolant level again and it seems the same as last night. I will check it more and more over time...
Now, at the weekend it had been raining stupidly heavy, and I always check the drain plug on the drivers side, but never the other side... The night before the car got smelt and had the condensation, it was parked on a slant so the passenger side was lower down. So could this be another drain plug on the passenger side I'm not paying much attention too??
Also today I think I could smell some coolant in the car when I was pulling off, but then again I was also following an old peugeot so it could of been that

BUT just incase, does it sound a bit like heater matrix?? If so, how much of a job is it to sort??
Notes::
The HBV and Coolant Bridge replaced about 3 months ago.
Thermostat was replaced 3 weeks ago
The coolant bottle is the original from what I can tell (I replaced the cap though when I got the car) and there is cracking around the neck...
Ideas??