No, and if your vehicle doesn't have a coolant filter, it will introduce a foreign matter into your engine and water pump, which will compromise your water pump and possibly clog up the coolant jacket. Whoever told you to do this - never take advice from them on anything, ever.
No, that is a totally ridiculous idea.
Effectually, no.
Yes, If to much leaks out this will cause the engine to over heat, smoke and or stall hence the name engine COOLant :)
If coolant leaks onto an engine it will cause no damage unless it leaks onto the alternator or into a wire harness connector of some sort. It is best to clean up leaked coolant as much as possible. It will smell a little when the motor is started. Leaked coolant on the ground is a danger to animals and children as it has a sweet smell but is very toxic.
You have a failed gasket, seal, or hose.
yes, especially if the leak is causing coolant to leak, you can run out of coolant. then overheat.
That means the engine is running HOT. Need to check the coolant level and check for coolant leaks.
If the front of the engine leaks coolant there is a blown head gasket. This requires immediate repair as it can lead to a blown engine if not managed appropriately.
Check your cabin air filter.
Could be getting into engine. Check tailpipe emissions for white smoke.
Check coolant leaks with a visual inspection. Clean the engine, then see where the coolant reappears. Look under the water pump. Check engine oil to see if coolant is leaking into the oil.
If by water you mean engine coolant, yes. Loss of coolant, antifreeze, is a major cause of overheating.
have coolant system pressure tested and look for the leaks