IN instrument clusters any car has a coolant temperature gauge. If the engine is overheated, the pointer needle approaches the red zone.
At the first signs of overheating, if the arrow of the temperature gauge has gone into the red zone, but there are no puffs of steam coming out from under the hood, fully open the heater valve and the air intake control air damper, turn on the heater electric motor at maximum speed.
Turn on the hazard warning lights, press the clutch pedal and, using the momentum of the car, try to carefully move to the edge of the roadway and stop as far to the right as possible at the curb, and if possible, outside the roadway.
Let the engine run for a couple of minutes at normal idle with the heater on at full power.
Warning! Do not stop the engine immediately! The only condition is to maintain the tightness of the cooling system. If a hose has burst or jumped off, or another leak has formed, in addition to the ejection of fluid from under the expansion tank plug, the engine will have to be stopped immediately!
After the overheated engine stops, local overheating of the coolant begins at the points of its contact with the most heat-stressed engine parts and the formation of vapor locks. This phenomenon is called «heat stroke».