C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

750mA Current Draw off the battery when not running.

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Old Dec 13, 2008 | 03:16 PM
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2002 c230k hb
750mA Current Draw off the battery when not running.

2002 c230, drained the battery two days in a role. I'm going to go outside and start pulling fuses to try to determine where its going but I would like to see if anyone else can help.

I just called the Local MB dealer and of course they dont like to give out any important information about their own cars. I asked him if 750mA was high, and he said yes.

Oh it doesn't seem to be my sub, because I disconnected the feed from the battery with no change.
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Old Dec 13, 2008 | 03:28 PM
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Do a search on seat modules....common failure with battery drain symptom.
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Old Dec 13, 2008 | 04:22 PM
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2002 c230k hb
I think I'm at that point. I unplugged the driver module I think and current dropped about 300mA. Do you know what is normal? Can anyone go out and measure this for me with a voltmeter?
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Old Dec 13, 2008 | 04:56 PM
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2002 c230k hb
It looks like after a dormant period it will drop as low as 150mA.
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Old Dec 13, 2008 | 05:25 PM
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Originally Posted by noreaga0221
It looks like after a dormant period it will drop as low as 150mA.
STFF, someone went through the whole troubleshooting procedure for battery going dead....including the sitting current draw. My memory says 120mA.
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