Mercedes-Benz 2009 GL320 BlueTEC Operator's Manual page 168

Controls in detail
Control system
Distance driven since start
1
Time elapsed since start
2
Average speed since start
3
Average fuel consumption since start
4
All statistics stored since the last engine start
will be reset approximately 4 hours after the
SmartKey in the starter switch is turned to
position 0 or removed from the starter switch.
Resetting will not occur if you turn the
SmartKey back to position 1 or 2 within this
time period.
Fuel consumption statistics since last
reset
X
Press button or repeatedly until
ÿ è
the message From Start appears in the
multifunction display.
X
Press button or repeatedly until
j k
the message From Reset appears in the
multifunction display.
166
Distance driven since last reset
1
Time elapsed since last reset
2
Average speed since last reset
3
Average fuel consumption since last reset
4
Resetting fuel consumption statistics
X
Press button or repeatedly until
ÿ è
the message From Start appears in the
multifunction display.
X
Press button or repeatedly until
j k
the reading that you want to reset appears
in the multifunction display.
X
Press and hold the reset button in the
instrument cluster until the respective
values are reset to 0.
The fuel consumption statistics reset
automatically to 0 after 99 999 miles or
9 999 hours, whichever occurs first.
Distance to empty
X
Press button or repeatedly until
ÿ è
the message From Start appears in the
multifunction display.
X
Press button or repeatedly until
j k
the message Range: appears in the
multifunction display.
The calculated remaining driving range
based on the current fuel tank level
appears in the multifunction display.
If only very little fuel is left in the tank, a
vehicle at the fuel pump
¿
instead of the remaining driving range.
appears