If coolant is leaking from a car it means that your radiator has a hole in it. If this is not fixed the car will over heat.
yes, because once the coolant started to steam it would seep out.
your heat comes from your heater core which draws heat from your engine coolant so if you have no heat and the blower is still running then there is a coolant level problem as in none which then would cause the mottor to over heat and quick
It's a warning sign that you are low on coolant.
If you mean engine coolant is getting into the car, the heater core is leaking coolant causing the coolant level to drop and that causes the engine to over heat.
Most likely: 1-Insufficient amount of coolant (anti-freeze.). 2-Insufficient coolant flow (bad water pump or drive belt.)
It could either be your thermostat or your waterpump. In either case you could have full coolant levels but with a faulty thermostat or water pump your car will still over heat. I would start with the thermostat because those are usually the cheapest and easiest to fix.
Low coolant.
the reason that the heat would cease to work when the car overheats is that the car is low on coolant. coolant is warmed by the engine as it transfers heat away from the engine. the heated coolant passes through heater hose and through the heater core. The blower motor blows air through the heater core warming the air and pushes the warm air through the vents in the car to you. the heater core is a small radiator in the dashboard of most vehicles. If there isn't coolant in the car, the engine becomes too hot thus the overheating. a side effect of this is that the lack of coolant means that coolant cannot get to the heater core to be warmed to warm you
No thermostat, no coolant, no waterpump. Basically you have no coolant circulating.
heat It transfers engine heat from the coolant to the air inside the car.
You are probably low on coolant. You need coolant to heat the cabin and cool the engine. Add more coolant and take your vehicle to a shop to find/fix the leak.