hey guys need some help battery is always running out of charge on my vl, although i know whats doing it. the battery light on the dash is coming on when the car is off but goes when i start the car. is there a speific wire/wires/switches i need to check or change? thanks

There can be a quick way to find out. With the ignition off. Remove one fuse at a time & place it back in. If you notice a little spark when placing the fuse back in that fuse would be drawing/draining the power from your battery. Find out what fuse it's for & that's where the power is being drawn. When I had a battery drain problem I couldn't find out where the power was being drawn from. In the end it was the central locking LOL. One of the locks was constantly holding the lock down. Some original photos have not been recovered yet.

Quote: although i know whats doing it so what's doing it?

hey tryed the little trick with the fuses but nothing sparked so took out all the fuses and the battery light is still on. im taking the dsh of this weekend to do a few things so i will check behind there for any fulty wiring thanks

sounds like alternator

Alternator belt tight?? Also are your battery terminals tight & Clean??

problems inside alternator not belt issues

Would it be the regulator??

didnt think it would be the alternator for it goes away when car turns on but i will investigate

After looking at a diagram the ingnition switch sends power to the warning lights on dash and the alternator provides the earth to turn the alternator light on . So if light turns off when engine starts the alternator is doing what its supposed to i'd be looking at the contacts in the ing switch to make sure it's braking circut when turned off ---------- Post added 11-11-12 at 18:11 ---------- The ingnition is powered by the fuse links next to the battery so removing the fuses in the fuse box wont have any effect. Use a test light on back of ingnition switch the two pink wires should only be live in the run postion of the key

Sounds like whats happening in my Vh Work out which wire is the battery light wire on the back of the alternator and unplug it Whack a test light onto that terminal and see if it's live Mine is so alternator is screwed

i tryed the fuse trick again and it worked its from the ignition system,so that narrows done my search.

hey guys just an update i just thought stuff it i will buy a new battery and bang,the light has gone and also lasted a couple of days without starting it so i guess it ws just the battery for it has been ran dead a few times. thanks .