I recently got my car repaired with welding. The guy unplugged the battery and the screen that says start from counts down from 15l/per 100km down in of showing the actual current amount. How can this be fixed? Picture is what it should be.
You're talking about the one that, in your photo, says 3.8L/100km "from start"? You want that to show instant fuel economy? If so, press the TRIP button on the steering wheel. That should cycle through the different options.