🚀 go-pugleaf

When this happened to me, it was a problem with the alternator not charging
properly.  Mine is an '84 318i - it has a battery light that comes on when
the battery is low, but if the bulb is blown the light won't come on.
Because it is wired in series (power goes THROUGH the bulb), the alternator
was not getting the signal it was supposed to.  When the bulb was replaced,
it began charging properly again.

Other problems that cause batteries to not charge properly:

1. Loose fan/alternator belt
2. bad ground
3. defective regulator

Check your ground wires that go to the engine, shock tower, and frame.  When
I checked mine, the one to the shock tower looked good but when I removed a
bolt I saw the weld was broken.  Also, the ground strap to the engine was
badly corroded.

I ended up replacing the alternator, battery, belts, alternator adjustment
bracket (to keep the alternator and belt tight), plug wires, distributor cap
& rotor...and eventually the lightbulb.  It was the bulb that caused the
problem - I only wish I knew before I went through all the trouble.

Good luck with your battery.

Terry

<87_E30@325is.com> wrote in message news:3ECC1CEB.47701C5A@325is.com...
> I had the exact problem a while back.  Turned out to be the radio. Once I
> replaced the (original) radio, which wasn't working all that well anyway,
the
> dead battery issue went away.   As a suggestion, perhaps disconnect the
radio
> and see if that solves the problem.
>
> Mike
>
> shimon kochavi wrote:
>
> > I have E30 325 1987 for over 15 years, I replaced the battery 2 months
ago,
> > last week the car stopped due to dead battery.
> > I had the battery checked and recharged and I replaced the alternator
and I
> > had it checked and it had good output (13.6v), every 2 days the battery
keep
> > dying, and after I recharge it I use it for 2 more days.
> >
> > Maybe there is a shotage or known problem, I will approciate any input.
>