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2002 Mercedes-Benz C240 Question: dead battery



darylle, Vallejo, CA, May 06, 2010, 11:12

Battery dies after 2 days of non-operation Ive changed battery, did load test with meter it reads 100 mila amp. Any sugesstions on how to locate drain.

2 Answers
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  • Answer #1

    May 06, 2010, 20:57

    100 milliamps should not kill your battery in 2 days. 50 milliamp or less is ideal, but 100 should last for at least a week. How well is your alternator charging? Does the drain go down say after 15 minutes? 100 may be the computers booting and will settle down after 15 minutes or less. ( the computer memory functions boot up when you connect the battery cable. ( Be SURE to have the key OUT of the ignition and the doors closed. leave a window down so you don't get locked out )

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  • Answer #2

    Visitor, September 07, 2010, 19:15

    It is most likely the seat control module. Disconnect the seats and then try the test.

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