Most likely your heater core. Bout 60 bucks..cheap fix. Silkysam!
Eventually heater will stop working when coolant level gets low enough. Pressure test system to determine where leak originates
You have hydrogen heat it up it make the pistons move and the car moves.
When the car is at idle, the air conditioner works just as hard as when the car is moving. When the car moves, the engine gets very hot. so the air conditioning works better when your at idle because it doesn't have to cool the heat from the engine.
you can tell if your heater cooling system/core is broke as the car will not produce heat when you turn on the heat inside the car. if it is not blowing heat there could there is a problem. the heater core itself should look like a small radiater, if that is clogged it could cause a problem. can also possibly fix this by doing a cooling system flush this will clear any blockages or expose the problem. if flush works, consider the thermostat. that also will cause no heat on inside.
Your question is not clear...
as the sunlight falls on the car it gets reflected, if the surface of the car is neatly polished.
it is probably a bad heater core
Yes. Gasoline and diesel engines are both heat engines.
It works pretty good but is sometimes gets slow
yes, her car gets stuck and the door but the car works and she drives as fast as she can
it blows on you for a chill or makes you warm when it is on heat. ok tacos!!
no it works magically :P If you want to clear the windshield you do.