Slow Electrical Drain

[Mike Vitrano]

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[ Picked text/plain from multipart/alternative ]
My experience with voltage drains on Audis and VWs is to disconnect the ground cable from the battery
and hook up a 12v test light (clamp of test light on negative post of battery and "probe/needle" of test
light stuck into disconnected ground cable) - if the light is "lit", then you have current drain - start pulling
fuses from fuse box one at a time. When the light goes "out", then the last fuse "pulled" supplied current
and that fuse correlates to the wiring circuit that is causing the "drain". Trace what is on that circuit from
a Bentley wiring diagram and troubleshoot from there...

HTH

Mike's VW Service
Columbia, TN

200 20v sedan

----- Original Message -----
From: Calvin & Diana Craig
Sent: Monday, October 07, 2002 8:28 PM
To: 200q20v at audifans.com
Subject: RE: Slow Electrical Drain

I also endorse Mike's method of simply hooking a DVM up to the battery and
seeing when the battery voltage comes up, or the current goes down.  I
usually just measure the current drain on the battery by disconnecting the
ground wire from the battery and hooking the DVM in series with the wire and
battery on the Amps setting.  Remember on either one make sure the door is
shut and the interior lights are off.  My guess is that if it takes two days
to drain you are looking at something around 200 to 500 mA.  Drain should be
less than 50 mA, closer to 20, with everything off and closed.
--Calvin Craig

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