1993 BMW 740 car will not charge battery

1993 BMW 740
100,000 MILES • V8 • 2WD • AUTOMATIC
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YORTMAIER
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i recently had a new battery, spark plugs, crank sensor relay?, installed in my vehicle... after one day from leaveing the shop the vehicle completely died suddenly. i was told that it must be my alternator; after installing this, the same thing happened the next day after picking the vehicle up. obviously i was just running off the juice of my battery....does anyone have any suggestions?

thanks!
May 10, 2008 at 1:22 AM
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MHPAUTOS
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Hi there,

First thing to do is make sure that the battery is indeed serviceable and capable of accepting a charge, then check the alternator charge rate. Do this first.

Mark (mhpautos)
May 10, 2008 at 1:27 AM
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DOCHAGERTY
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I suggest checking for a key-off draw at the battery, it should not exceed 50 milliamp. I also agree with Mark, check for battery condition and alternator output.
May 10, 2008 at 10:02 AM
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