battery draining overnite 3,3 amps draw
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Joined: Mar 2017
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2000 s500
battery draining overnite 3,3 amps draw
hey guys first time actually posting i have been reading your interesting post and instesad of being lazy and taking my 2000 s500 to mb dealear i have saved lots money learned alot about these cars they are not your nomal auto as everyone thinks when u have a problem well here is basically one final and big project connected amp meter in series between neg post and negative cable after car was off 4 30 min i started pulling 1 fuse and relays 1 at a time on both sides of car and then the dreaded backseet how the hell can u see down there anyway the box was so loose and carpet was so damp that someone did not mount so opun wiggiling fuse box and sam unit the amp meter went to zero amps to 9 nine ams so i fiddled and an assumption that the rear sam and fuse need to b repaired as well as some type of water protection what do u guys think there was also a recall way back from national safty bpard about the rear battery not holding charge cause of static discharge there i no protective box or material that that battery its a bosch sorry for mispelling its been dischrged 4 times since i have had it for 6 monthes but the battery is at full strength so do do guys think i should replace sam an fuses or go ck further plz relpy
Last edited by jeebise23; Oct 19, 2017 at 07:26 PM. Reason: spelling
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Joined: Jan 2008
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Mercedes
Your car has water damage and all your electronics will be fried unless you remove the carpeting and dry it out
the water enters from under the windshield passenger side reservoir
see this thread
https://mbworld.org/forums/s-class-w220/265605-2nd-s-flooded-week-s-owners-keep-your-drains-clean.html
then the water travels under the passenger carpet to the rear SAM
you may need a new Sam or maybe just drying it out will work . But first step is to remove carpet on passenger side front and rear to dry it out - as it has thick foam that holds gallons of water and you can't see it from the top and you can't dry it out from the top
the water enters from under the windshield passenger side reservoir
see this thread
https://mbworld.org/forums/s-class-w220/265605-2nd-s-flooded-week-s-owners-keep-your-drains-clean.html
then the water travels under the passenger carpet to the rear SAM
you may need a new Sam or maybe just drying it out will work . But first step is to remove carpet on passenger side front and rear to dry it out - as it has thick foam that holds gallons of water and you can't see it from the top and you can't dry it out from the top
Last edited by tusabes; Oct 19, 2017 at 11:05 PM.
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Joined: Nov 2017
Posts: 5
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2004 Mercedes-Benz S500 4Matic
I had a similar issue a few months ago, mine turned out to be the right front SAM cover was not placed correctly and allowed water into the SAM, i dried it up and made sure it sealed well and no problems since. Check both front Sam covers, because the water that drips from the windshield falls directly on both front SAM covers if they are not sealed correctly they will get wet.
