Mode/Memory Select Switch Test Position

Multi-function Indicator Mode Select Switch (E 86) and Memory Switch (E 109)

Position 1 of Multifunction indicator memory switch (E 109)

In position 1 the contents of the single trip memory can be displayed. With ignition on, and until the ignition is switched off, the following data is collected:

- Driving time
- Distance driven
- Fuel consumed

From this data the average speed and the average fuel consumption are calculated and stored. If the trip is continued within 2 hours of switching off the ignition, the new values are included in the calculation.

Position 2 of Multi-function indicator memory switch (E 109)

In position 2 the contents of the total trip memory can be displayed. The following data from any number of single trips is collected:

- Driving time (up to 100 hour's)
- Distance driven (up to 10,000 km/miles)
- Fuel consumed (1,000 liters/gallons)

From this data the average speed and consumption for all single trips are calculated and stored. If one of the given maximum memory capacities is exceeded, the memory is cancelled and the calculations start over once again.

Unlike the single trip memory, the total trip memory is not cancelled after switching the ignition off for two hours.