If you coolant is on low make sure the system has been bled properly. I fill the tank to the B mark, heater on full make sure car comes up to temp give it a good blast for 15 mins. Then top-up if necessary and monitor.
When I got mine the system wasn't bled properly and the one time a garage worked on the cooling system it wasn't bled properly either
When I got mine the system wasn't bled properly and the one time a garage worked on the cooling system it wasn't bled properly either