can anyone help with this problem? I could be driving at 30mph and the red light comes on for the charging system.stays on for 10--20 seconds and sometimes on tickover.It`s a little iritating to think perhaps the alternator is defunct or is there a regulator not doing it`s job.
Go for a 100 mile plus drive---no problems----enter suburban areas at speed limits,red light appears again----anyone out there know the possible cause.
It`s driving me nuts!!! Car is a bmw 520 auto---circa 2000---2.2petrol six cylinder.