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Old 05-01-2008, 06:02 AM   #5
Lil bastard
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Join Date: Feb 2008
Location: Du Monde
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Originally Posted by Kabad
Thanks for your help, if the battery light stays lit will it hurt anything on the car to drive it, except drain the battery if the alternator is not working?
Actually, it could. First, the new battery will become old and degraded very quickly. Batteries lose their ability to accept and hold a charge by degreees with each discharge, about 5-7 total discharges is all most batteries can endure before they're through.

Also, several other much more expensive electronic components (like the DME or Alarm Control unit) are at risk from possible voltage spikes that a bad alternator can produce.

Last time I had an alternator rebuilt (Motorola), it cost me $110, you risk much more than that by not correcting the problem.
1990 Porsche 964 Carrera 4 Cabriolet
1976 BMW 2002
1990 BMW 325is
1999 Porsche Boxster
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