My 1997 Golf does the same thing. I think VWs just tend to have really sensitive sensors?
Coolant doesn't go through the cooling system, and the vehicle will overheat.
cools the engine. without a fan, the car will overheat and the coolant will boil. the fan controls this from happening by cooling the coolant as it passes through the radiator.
when your coolant in your engine gets a certain temperature,usually 180 degrees,your thermostat opens and your coolant circulates through your radiator and it keeps your engine cool so it wont overheat.
coolant level could be low not letting it circulate through the heater core, causing it to blow cold. Also, if the coolant level is low it will in turn overheat.
If your going through coolant then you have an internal head gasket leak you smell coolant because its getting into cylinder and burning
IF it goes bad it will stick and allow no coolant to pass through it, and the car will subsequently overheat. Just change it out. They are usually under $10
Low coolant? Air flow through radiator restricted? Hoses collapsing under pressure? Defective radiator cap?
If your heater core is LEAKING engine coolant so that your engine coolant level drops too low or the engine coolant is lost completely and causes your engine to overheat then your engine can be damaged beside the mess the leaking coolant makes inside your vehicle ( you might be able to just temporarily bypass the heater core so that no engine coolant is flowing through the heater core )
If your car is overheating, then a condition exists which needs to be diagnosed and corrected or repaired. It could be bad coolant, poor coolant flow, blockage of air through radiator fins, bad thermostat, or a number of other things.
One way is: with a cold engine, take off the radiator cap, start the engine and let it run to operating temp, and look into the radiator to see if you see any coolant flowing usually from one side of the radiator to the other. If you look in the radiator and the coolant is not moving, then your water pump is probably gone, and don't overheat your engine. Without coolant flowing through the engine you cna overheat the engien and cause severe damage.
It most certainly could. Most new cars use a single belt to run the "accessories" like the alternator, AC compressor, power steering and...the water pump. With no belt, no coolant is flowing through the engine and into the radiator and the car will quickly overheat.
You can not, and should not drive a car that has a bad water pump. The water pump pumps coolant through the engine. You engine will overheat and die without a functioning water pump.