2005 MERCEDES BENZ E320
130,000 MILES
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ERICKSSON
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  • 9 POSTS
when u park the car over night the battry drains i changed the front sam unit disconected the seat modules bt still drains and no message from the cluster wat could be the problem
Jan 20, 2013 at 1:17 PM
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ASEMASTER6371
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  • 52,796 POSTS
you need to put an ammeter in line with the negative cable and remove fuses 1 by 1 till the draw goes away. then you have to trace that circuit down to find the failure. not an easy find, time consuming.

Roy
Jan 20, 2013 at 4:18 PM