On-Board Computer Functions

• The BC is coded on the assembly line for the specific country version.
• It can be changed in the dealership using the DIS tester or MoDiC.
• All vehicle specific data for the BC's operation is stored in the NVRAM of the BC.
• The BC functions are called up by pressing the turn signal lever.

In addition to the clock it offers the following functions:

OUTSIDE TEMPERATURE  - the temperature display is dampened, as with other displays to prevent underhood temperatures from influencing the sensor when the vehicle is stopped.

The warning gong will sound when the outside temperature drops below 37°F as with other BC displays.

AVERAGE FUEL CONSUMPTION  - the average fuel consumption is displayed in MPG. As with other BCs it is calculated from the "ti" and road speed signals.

Fig 1: View Of On-Board Computer

Courtesy of BMW OF NORTH AMERICA, INC.

Pressing S/R with the MPG displayed, will start a new calculation.

RANGE  - the estimated distance on the remaining fuel is displayed. The range value is determined from the "ti" and road speed signals as with other BCs.

AVERAGE ROAD SPEED  - The average road speed corresponds to other BCs, pressing the S/R button will start a new calculation.