
Fuel consumption information not being displayed is largely likely due to a malfunction of the vehicle's fuel level sensor. In this case, you should promptly drive to a 4S shop for inspection and repair to resolve the issue. Below is relevant information about the vehicle's fuel level sensor: Definition: The vehicle fuel level sensor utilizes the change in capacitance between the sensor housing and sensing electrode caused by fuel entering the container, converting this change into a current variation to detect the position (height) of the fuel in the container. Working Principle: The sensing part of a capacitive fuel level sensor is a coaxial container. When fuel enters the container, it causes a change in capacitance between the sensor housing and sensing electrode. This variation is converted by the circuit with precise linear and temperature compensation, outputting a 4-20mA standard signal to the display instrument.

I've been driving for over a decade and have encountered the sudden disappearance of fuel consumption information several times. The most likely cause is an issue with the steering wheel button operation, where accidental pressing of the toggle button changes the display mode. Try repeatedly pressing the information toggle button or the arrow keys on the multifunction steering wheel to restore it. Another possibility is the reset of the instrument panel settings, which often happens after power-off maintenance, requiring you to re-select the fuel consumption display option. If other information on the instrument panel is normal, then the sensor might be the issue, especially when the vehicle speed sensor is dirty or damaged. The onboard computer can't calculate fuel consumption if it doesn't receive a signal. You can check if the sensor plug is loose or clean the wheel speed sensor with a damp cloth. If all else fails, you'll have to visit an auto repair shop to connect an OBD computer to read the fault codes.

Last time my cousin's newly bought car also had the issue of fuel consumption not displaying. After a lot of troubleshooting, we found out it was turned off in the menu settings. Nowadays, many cars have display options in the central control screen. You should check the instrument display items in the vehicle settings, as the fuel consumption information might have been accidentally turned off. Another scenario is that after a battery disconnect, some vehicles may reset to factory settings, requiring manual re-enabling of the fuel consumption statistics. If the entire dashboard is black or flickering, it might be a blown fuse. Check the manual to locate the fuse corresponding to the dashboard. I recommend keeping the engine running without turning it off and trying different key combinations to reboot the system, such as holding down the return key and menu key simultaneously.

Disappearing fuel consumption display is usually caused by sensor or wiring issues. For example, when the speed sensor on the rear wheel hub gets covered with mud, data can't be transmitted to the ECU, naturally causing the fuel consumption display to vanish. I encountered this situation after off-roading last time, and washing the inner side of the wheel hub solved it. A blown fuse can also cut off power to the instrument cluster, so focus on checking the 10A fuse labeled for the instrument panel in the cabin fuse box. Additionally, damaging wiring harnesses during circuit modifications or water seeping into the instrument cluster connector during car washing causing short circuits may all lead to disappearing fuel consumption information. DIY repairs carry risks, so it's best to have it checked at a professional shop.


