If you are driving and water is sucked up in your engine it will ruin your engine. but if the car is sitting in water not running dont even try to start it. Drain all fluids out of the car and replace them all with new fluids.
It can allow water to mix with the engine oil and destroy the engine.
If you can hear a click from the starter, but it does not spin, you may have sucked water into the engine. That can destroy the engine. You need to remove the spark plugs to check for water in the cylinders.
the thick liquid would plug your radiator and ruin your water pump. and destroy your engine.
Depends on where, and how much. There will be a little there due to condensation, which doesn't really affect things. But if you get a lot of it, it can destroy the oils in the pan, and with that the lubricating system. Or if it gets in the cylinders you can get something called "hydro lock" which can destroy the engine. Or get it in the electrics, and the engine will most likely not run.
As long as you keep water in it you are fine, but if the leak gets worse and you don't realize it, you could overheat you engine and destroy it. Keep a close eye on the gauge.
Assuming you mean engine coolant is mixing with the engine oil, you probably have a bad head gasket and or a cracked head. If you run that engine in that condition for very long, you will destroy the engine internals.
Yes, it will destroy a diesel engine.
In an emergency situation you can add water. But coolant contains anti-corrosive additives that prevent rust. Leaving plain water in your engine will eventually destroy it
Petrol in a diesel engine will destroy the engine.
Blown head gasket, cracked head, or both. STOP driving this car or you will destroy the engine. Have this repaired ASAP.
Water is good to use in a car engine for a couple of reasons: 1) To clean the engine out 2) If it's a water-cooled car engine, it's good to use so you don't over-heat and destroy the engine. Please be aware that today's modern engines are made out of aluminum, these engines require the exact mixture of coolant and water required in the owners manual or serious corrosion will occur.
It will slowly destroy the engine.