On the E36

1. With the key in the 0 (off) position, depress the trip odometer reset button. This will illuminate the odometers, but will not reset them.

2. Hold the trip odometer reset button for 30 seconds. After 30 seconds, the odometer illumination will go out.

3. When the odometer illumination goes out, turn the key to the 1 (accessory) position and release the odometer reset button.

4. The instrument cluster will display "test 01" and begin the self test process. The odometer display will show the test number on the right (01 - 06) and that test's associated code on the left. The tests are as follows:

01: BMW Part number - 6 digits
02: Internal coding plug number - 5 digits
03: K Number - 4 digits
04: Chassis number - 5 digits (partial VIN)
05: Software version - 3 digits
06: Revision index - 2 digits (Hardware #)

5. After the self test codes are displayed, all 5 instrument needles will automaticall sweep their full ranges.

6. The instrument test function is cancelled by turning the key to either position 0 (off) or position 2 (run).