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Posted by Grant on March 22, 2001 at 19:15:11:

In Reply to: '84 733i with dead battery posted by jj on March 22, 2001 at 16:33:50:


Battery went dead after car was unused for about one week. I don't see any lights left on. After jumping battery, it was dead again next morning.

The battery and alternator are less than 1 year old. I remember reading somewhere that these cars require a special type of battery, but it seems odd that a battery would only last 1 year.

I haven't had a chance to investigate yet, but I planned to first put a meter between the Pos. battery terminal and the cable. Can someone please tell me what current it will draw when key is off. Next, I will have the battery, then the alternator checked. Any other suggestions are appreciated. Thanks for the help

You do not need a special battery. If the battery checks out to be good then you have something that is drawing current when the car is parked. Be sure that all the interior, trunk and hood lights are off. Check all the simple things first. Then do the current draw test at the battery. Just because the battery is one year old does not mean that it is still good. Sometimes the one of the cells will short out and the battery is no good. Have a good shop check the battery first.


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