1. The gauge shows the temperature of the engine coolant when the ignition key is in the "ON".
2. If, with the engine running, the pointer arrow entered the red zone of the scale "H", this indicates that the engine is overheating. In this case, immediately stop the car in a safe place and turn off the engine (do not turn off the ignition). Eliminate the cause of overheating (see subsection "Engine overheating" section "Engine malfunctions while driving").