Got in my car today and whilst driving i noticed that the petrol light had came on. I thought to myself that it was funny as i had put £10 of fuel in the day before. On looking at the petrol gauge (see pic) it shows i have plenty of petrol. The computer also says that i dont have any and shows --- which is normally less that 30 miles. Im also currently doing 28.4 MPG. What should i believe and has anyone had any problems like this. I am obviously going to put some petrol in later just in case but i think it might be another trip to the dealer.
http://www.dings.com/fuel.jpg