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robb · 09-29-2008, 09:21 AM

I know there has been lots of problems but has anyone found a 100% fix to the battery being drained as the car is not used for a day

robb · 09-29-2008, 09:24 AM

Anyone get a 100% fix

woods · 09-29-2008, 09:27 AM

The 100% fix is to find what is draining the battery. An ammeter is your best weapon. Probe around the fuse box until your find what circuit is drawing current.

An obvious question: Is your battery in good condition?

Al Canuck · 09-29-2008, 11:14 AM

A assume this is an E66? What year? You'll need to do a an energy diagnosis with GT1, and see why she's not going to sleep.

Troubleshooting a draw on the new cars, is not as simple as it used to be. There are a PILE of modules in that thing, and if one of them won't go to sleep, it can kill the battery very quickly. Energy diagnosis is the only way to know for sure, whats going on.

Al

MGuy · 09-30-2008, 08:19 PM

Find out what circuit is causing the drain and pull the fuse. Otherwise start tracing wires.

Do you know where the drain is coming from yet?

09-29-2008, 09:21 AM	#1 (permalink)
robb newbie Name: Bill Joined: Sep 2008 From: New brunswick Posts: 2 iTrader: 0 Thanks: 0 0 Times in 0 Posts	Drained battery 750 Li I know there has been lots of problems but has anyone found a 100% fix to the battery being drained as the car is not used for a day

09-29-2008, 09:24 AM	#2 (permalink)
robb newbie Name: Bill Joined: Sep 2008 From: New brunswick Posts: 2 iTrader: 0 Thanks: 0 0 Times in 0 Posts	drained battery 750 Li Anyone get a 100% fix

09-30-2008, 08:19 PM	#5 (permalink)
MGuy Senior Member Name: Jay Joined: Dec 2007 From: Ottawa Posts: 169 iTrader: 0 Thanks: 0 0 Times in 0 Posts	Find out what circuit is causing the drain and pull the fuse. Otherwise start tracing wires. Do you know where the drain is coming from yet? __________________ Jay '88 325i Cabrio Zinno/black leather 130k km '86 M5 - Diamond black/black 180k km '84 M635CSi - Agate Green/nutria 95k km '88 735i - Euro - Luxor/black somwhere well north of 300k km

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09-29-2008, 09:27 AM	#3 (permalink)
woods Senior Member Joined: Feb 2008 From: Gabriola Posts: 148 iTrader: 0 Thanks: 0 0 Times in 0 Posts '91 BMW M5	The 100% fix is to find what is draining the battery. An ammeter is your best weapon. Probe around the fuse box until your find what circuit is drawing current. An obvious question: Is your battery in good condition?

09-29-2008, 11:14 AM	#4 (permalink)
Al Canuck Banned Name: Al Joined: Jul 2005 From: Surrey, BC Posts: 1,850 iTrader: 0 Thanks: 4 3 Times in 3 Posts	A assume this is an E66? What year? You'll need to do a an energy diagnosis with GT1, and see why she's not going to sleep. Troubleshooting a draw on the new cars, is not as simple as it used to be. There are a PILE of modules in that thing, and if one of them won't go to sleep, it can kill the battery very quickly. Energy diagnosis is the only way to know for sure, whats going on. Al

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