Hi, I have a 1987 325 with 277K on it and today the car stalled out at a light. Before that the anti-lock brake light came on then the oil light. It wouldn't turn over when I tried to restart. So I got a jump and after 5 minutes charging, it started right up. After about ten minutes of driving, the indicator lights started coming back on and it died again. Finally got it home and immediately changed the battery (it was over 5 years old and needed repalcing anyway). Now it seesm fine (after 45 minutes of driving), but every now and then the brake light, and charge light blink on when I slow down hard. Also we checked the voltage across the battery when idling and at 2000 RPM. It was steady at 12.4 volts which seems low. I think its the alternator or the regulator, but not sure which. Any suggestions?
Thanks.