480 MPG sensor

[M D E]

Where is the MPG sensor on the 480? my computer some times sticks when displaying instant fuel consumption at 60 mpg alittle while later it reads correctly again ... But as the range is calculated on these figures it reads 600 miles to empty .... Think the sensor needs cleaning but I don't know which one ?

[B20F]

There isn't a specific sensor for range. The BC calculates the range on the info from the amount of fuel in the tank and the fuel average. Check first if the amount of fuel is correct. Fill the tank, put the multi selector on fuel average and while you press the reset button put the car on contact. The display should give 59ltrs. no idea what it should be in gallons, sorry. This if it is a 60ltr tank. If not correct you can adjus the reading with a small screwdriver. Insert it in the small hole between reset and unit button and adjust. With the unit button you can switch between miles and km (liters and gallons.)
If this doesn''t fix it the multi selector is the next suspect. Check the amps: