Volkswagen Enthusiast
i have a powerdraw thats been draining the battery within two days after charge i know i dont drive it much but is this normal considering the the battery got changed last 07 and ive gone through the wiring throughly
possible causes bad earth
new battery required
boot light
headunit
alternator replacement
Dub Crazy
VWwA Super Moderator
Originally Posted by william
Alternator is easy to test, voltmeter across the battery with the engine running. Should be looking at 13 plus volts easy.
Bootlight could be checked with the seat down or by dropping the back seat down.
Battery, is there any electrolyte in it? I replaced the battery on my Ibiza and when I took the old one off I noticed it was well low on fluid. That was pretty dead after Christmas and I had to bump it backwards off the drive.
Just charging it up doesn't prove that it's any good.
If you have volt meter you could check the current flow with the ignition off. Set the meter to amps and put it in line with the earth lead. Don't turn the ignition on cos most meters can only handle a small current. Maybe a few amps tops.
Gavin
Volkswagen Enthusiast
ok the alternator is fine then bc microtech says it charges at 13amps
i know the car has always has a bad earth how can i fix that??
what would you guys recomend ive had bosch batterys and charged two in three years??
just checked the boot light its ok
and the facure to the headunit has been off for a week
Dub Crazy
VWwA Super Moderator
Unplug the stereo altogether. To check the earth lead use your meter on OHMS. and see what it reads between the engine and the earth terminal. A bad earth won't flatten your battery but would reduce the charge voltage.
Gavin
Volkswagen Enthusiast
ok il try it asap
the deck is wired dirrectly to the battery when the car is off and key is out i can still have it on you get me
Dub Crazy
VWwA Super Moderator
I understand, hope you have a fuse right by the battery!! Take the fuse out and see how it goes.
Gavin
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