BMW M3 2002 Owner's Manual page 74

Computer
74n
Average fuel consumption
If you continue to hold the button on the
turn signal lever, the average fuel
consumption last displayed is recalcu-
lated from that point.
Range
The computer bases its calculations of
the cruising range on the preceding
driving style.
Average speed
If you continue to hold the button on the
turn signal lever, the average fuel
consumption last displayed for that
speed is recalculated from that point in
time.
Any time spent when the vehicle is
stationary and the engine is shut off is
ignored for the calculation.
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