Originally Posted by theochh
I have read others say that if you do top-up your coolant you need to bleed as well. Is that the case? or is it simply add coolant and it's done. Should the engine be running when adding coolant? i have also read people say the heating should be fully on? Is that another false bit of info?
I do not think you need to bleed the cooling system for a simple fluid top up. Maybe IF you had to add say a gallon(4+ liters) of coolant than, maybe. Same goes for putting the heater on full.
IF you had to replace a coolant hose or water pump than that would be a different story.