I was coming home one night and the headlights started to dim. They eventually went out. I thought it was an alternator so I replaced it. A couple days later the same thing happened so I got another alternater. Before putting it on I had it checked and it was good. I installed the new alternator and had the charging system checked. There was no power coming from the alternator to the battery. The belt and all the connections are tight. Is there a fuseable link or a relay in the system? If so could you send a diagram showing this. Thanks.
SOURCE: Installation of an alternator belt
Your alternator belt will be routed one of these two ways, depending on wether or not you have a auxiliary tensioning roller or not.
SOURCE: putting fan belt back onto the pulley for a 2002 bmw 525i sedan.
the tensioner , have to retractit. Vitally
SOURCE: 1995 bmw 318is new alternator battery dieing
check all the lighting on the car, IE: trunk light,glove box light, light under the hood, any small light make sure they shut off ,check to see if you have a phone charger left in the cig. lighter, radar detector ETC. any of those things can drain a battery over night quick.if you dont find anything wrong then you may have a short somewhere in the electric system... hope this helps you...
SOURCE: bmw 325i battery not charging, alternater? When
If you drive at night, the battery will not carry you that far. Drive during the day you may get aan hour out of it with no accessories on. Get an Alt in down here, it's cheaper.
SOURCE: I have a 85 bmw 318i The battery will not keeep a
Need to test the battery ,and the alternator for a discharge .Was a new alternator used or a reconditioned one ?? ignore the lights for the minute because they sound as though the regulator is working ,iam more concerned about the diode pack in the alternator,hence was it a new one or a recon or one from a scrappers
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