View Full Version : Battery losing juice after staying a few days unused


pcamaj
06-21-2011, 06:10 PM
Hi guys I noticed my battery in MMI dropping to even 10%when the car is left for a few days unused. Is there a way with vag-com to determine what's shorted out or what's still operating while the ignition is off. Or is there any other remedy.

The battery is recently replaced .

Thnks

rumbish
06-22-2011, 04:44 AM
Some time ago had the same problem. Were some times when battery even lost almost all juice after 1-2 hours when car didnt drive. But it happend in winter,maybe it was something with cold conditions...i dont know. But now is summer and my car has stood for 1 week and full 100% of battery in MMI.

So,had the problem, but do not know what actually caused that!

pcamaj
06-22-2011, 05:21 AM
strange... winter, it makes kinda sense, but summer time not really. :confused:

beep-beep
06-22-2011, 07:11 AM
you must reset battery setting in batery control module after replacing it.

also when you say 'MMI shows 10%' it does not mean battery is drained and you cannot start. it only means that battery module miscalculates the charge.

pcamaj
06-22-2011, 07:25 AM
you must reset battery setting in batery control module after replacing it.

also when you say 'MMI shows 10%' it does not mean battery is drained and you cannot start. it only means that battery module miscalculates the charge.

Beep beep thanks for the insight playa LOL

I'll try that...