Hi everyone. My 318is has a voltage regulating problem. It seems to drop and spike voltage when the engine is turned on. All Electrical items in car... radio, dash lights, head lights, interior light go from dim to bright about a hundred times per minute. I have tightened my alternator belt and secured my batter terminals. It does not matter if the radio or fan are turned on/off.
Any ideas? Thank you in advance for your assistance with this issue.