the car stops working
No It Can Not.
You cannot use water in an engine instead of petrol. The internal combustion engine of a car or truck requires the ignition of gases in order to create power. This doesn't happen with water.
You have a blown head gasket.
Do you have an exhaust leak? Do you happen to have have an exhaust leak or a damaged water pump bearing?
This is condensation and it is normal for that to happen.
bacterias will enter in your body which will turn into a horrible disease and it can also kill you if it is not shown to the doctor
the thick liquid would plug your radiator and ruin your water pump. and destroy your engine.
It will run out of water/coolant and you will blow your engine.
First determine if the engine is really running hot if it is check to see if you are low on water, or could be the thermostat is not opening.The thermostat allows water to enter the engine block after it reaches a certain temp.
It will break a lot of expensive parts. If the water gets into the fuel, it will blow the tips off your fuel injectors...and new injectors are several hundred bucks apiece. This is why every diesel engine made in at least the last fifty years has a fuel/water separator which you MUST drain on a regular basis. If enough water gets into the cylinders the engine will hydrolock. Hydrolock happens when there's more water in a cylinder than there is cylinder volume at top dead center. The piston will hit the water and stop moving. The engine, not expecting there to be water in it, will keep on trying to force the piston upward. The least thing that will happen is you'll bend a connecting rod, which means an overhaul. The next worst thing is the head can break...in addition to bending all the rods in the engine. The next worst thing is the crankshaft can bend or break. The next worst thing is all of the above can happen at the same time. And the VERY worst thing that can happen is, besides your engine blowing up, diesel fuel can get loose, contact the hot engine, ignite and burn up whatever the engine is in.
That depends on how deep the water is. If it is only up to the bottom of your bumper your ok, If its any higher than your headlights stay well clear. You will have electical faults and possibly get water in your engine.
Diesel with water in it will blow the ends off the fuel injectors, which is why maintaining your water separator is so important.