The Bi-Fuel model variant has a separate fuel gauge for vehicle gas.
Markings above the switch show the current fuel level.
|Number of LEDs||Colour of LEDs||Fuel level (%)|
When the vehicle gas tank is empty the switch sounds 3 times. The level gauge extinguishes and the system automatically changes over to petrol.
Ensure that the petrol tank never runs dry because the car always starts on petrol.