Mechanics

MY MERCEDES 91 300 E HAS A NEW BATTERY AND THE ALTERNATOR IS CHARGING, YET SOMETHING IN THE SYSTEM IS DRAINING THE BATTERY COMPLETELY DEAD. WHAT COULD BE DOING THIS

1991 Mercedes Benz 300e • 290,000 miles

The alternator is good, yet something is draing the battery completley to the point that it has to be put on a charger, a jump start wont work
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Aghaffari0@aol.com
March 27, 2012.




You can use test light between battery post and battery (disconnect) and pull fuses 1 at a time to locate circuit that has draw. Light is bright until the right fuse is pulled and it goes out or gets real dim.

Tiny
Fixitmr
Mar 27, 2012.


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