Originally Posted by FreeStyle786
Does a 94 318is have a SI board with the batteries or no?
According to the Bentley Service Manual, no battery!
There is a self test though......
1. Turn ignition to radio position.
2. Press & hold reset button on trip-odometer until display shows numerical codes.
3. With each subsequent press of the button, a different function is tested. Some functions will activate needle gauges.
4. Turn ignition off.