On-Board Computer Test Functions

There are four test functions available for the Z3/318ti board computer. Press and hold the clock and S/R buttons simultaneously to enter the test functions. Scroll through the test steps by pressing the stalk switch.

Fig 1: View Of On-Board Computer Test Function Procedure

Courtesy of BMW OF NORTH AMERICA, INC.

TEST 1.  - 12/24 hour clock mode.  Press the clock button to switch between 12/24 hour display.

TEST 2.  - Display test.  Pressing the S/R button will illuminate all of the LCD segments of the display, the BC will then return to the test mode.

TEST 3.  - Correction factor for the MPG display.  The correction factor corresponds to other BC factors. The value can be corrected from 750 to 1250 by scrolling with the clock button. When the new value is reached it is stored by pressing the S/R button.

TEST 4.  - Acoustic test.  Pressing the S/R button will test the temperature warning gong.