Hey guys! Trying to speed up my searches and reposting from another forum. Maybe any of you can help idenitify my problem, so my car is a bmw e39(obv) 523i 98' and I have been experiencing electrical issues. Few weeks ago I had a problem the car dying on me while driving and the voltage dropping so I changed(upgraded) my alternator from 90 to 140 A. The problem persisted then I went on to cleaning all of the car ground and power connections, but the problem did not go and silly me did not even realise the loose battery connector... After that the car was all ok, reinstalled my old alternator since it was good, but now it started acting up- my blinkers started blinking very quickly, changing the bulbs did not help, the next day-trailor light error on the dash without even having a hitch on the car and now the central lock doesnt even lock the front doors half of the time... What am I facing?