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View Full Version : 2001 e46 battery light issues?? HELPPP


slammered
03-16-2013, 08:07 PM
battery light goes on at 2800rpm and up....if i switch gears it goes away, it stays if i hold the throttle??? what could the problem be??

2001 325ci

thanks in advance

pawelgawel
03-18-2013, 02:59 PM
this could be an alternator issue. check the voltage on the battery, make sure it reads over 13 with lights on. if its lower, Id replace the alternator voltage regulator before anything else..

this should help and explain more:

http://forum.e46fanatics.com/showthread.php?t=583423

slammered
03-18-2013, 03:48 PM
the battery is putting out over 13v when its running with the lights, but when i hit 3000rpm, it drops to 11.3v and thats when the battery light goes on, if i let off the throttle it goes back up to 13.8v...should i just replace the alternator??

thanks for your reply

BmW1819
03-18-2013, 09:15 PM
Yes u need a alternator

slammered
03-18-2013, 10:17 PM
thanks for you help, alternator is removed and the new one is ready to be dropped in tomorrow

BmW1819
03-19-2013, 08:35 PM
What make??

slammered
03-20-2013, 12:28 AM
rebuilt oem bosch