BATTERY IS DEAD IN THE MORNING
Thread Starter
Member
Joined: Feb 2016
Posts: 83
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From: DFW
2006 C230 with 139k and 2005 C240 4matic
BATTERY IS DEAD IN THE MORNING
I have unplugged all the fuses one at the time in the trunk, in the engine compartment and in the driver side dash and the test light is still lit. I have removed the negative post of the battery and connected the taster light for continuity but the light stayed on. What else can I do to find the draw?
Thank you
Thank you
Last edited by alexqkama; May 1, 2016 at 09:12 PM.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,225
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From: V E G A S
1922 Ford Model T / no OBD
Those cars always have a draw and doing test with the light you are risking that spiking voltage can mess electronics.
I would get real ammeter and remember that car has to go to sleep to drop the draw to miliamp.
I would get real ammeter and remember that car has to go to sleep to drop the draw to miliamp.
Thread Starter
Member
Joined: Feb 2016
Posts: 83
Likes: 1
From: DFW
2006 C230 with 139k and 2005 C240 4matic
The battery is dead after 8 to 10 hours. I have to disconnect the negative at night before sleep. If removing the fuses and relays are not stopping the draw so what is it then ghost!
Junior Member
Joined: Feb 2013
Posts: 64
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From: West Michigan
2017 W166 GLE350, 2005 W163 ML350 Special Edition
By any chance do you have a Valentine Savvy plugged into your OBD II connector? I encountered the same thing as you after using that device, and I learned it draws power even in sleep/off mode. I now unplug it each night and the dead battery problem is gone. Valentine will re-flash the Savvy device to eliminate the problem, but I've not yet taken the time to send it in.
Member
Joined: Jan 2016
Posts: 162
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
By any chance do you have a Valentine Savvy plugged into your OBD II connector? I encountered the same thing as you after using that device, and I learned it draws power even in sleep/off mode. I now unplug it each night and the dead battery problem is gone. Valentine will re-flash the Savvy device to eliminate the problem, but I've not yet taken the time to send it in.
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Joined: Apr 2015
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From: dmv
2009 E550 2000 Honda civic mash n' go
Everything is speculation. Until you know how large of a draw you have you can't really narrow the draw down. Spec is a little higher then other MB models. wanna say around 30-55 thousand milli amps. Disconnect tele aid control unit, comand operating unit, very comon draws on 211's. You need to do a accurate draw test with your meter hooked up in the circuit of the battery itself.... You need someone who knows a thing or two about draws on vehicles. Unless you are hands on with electricity, know how to NOT blow the fuse in your multi meter and have the equipment to test then maybe you can do it yourself, however these things can be a pita!
more importantly, nothing will be accurate unless car is asleep.
more importantly, nothing will be accurate unless car is asleep.
