2003 325i Battery Drain

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England
#1
Does anyone have any idea how long the battery on a 325i (March 2003 production model with 1,200 miles on it), should last when the car is parked before it needs re-charging?

I ask because we went on holiday for two weeks, and upon our return, the battery was dead and required a jump start. The mechanic that gave us the jump-start said that "it's normal for 325's battery to run down after not driving it for more than two weeks". He also said that the drain is a result of the alarm. Nuts I say! Our other car (a 1997 Dodge) has been left for up to six weeks with the alarm engaged and, without fail, has always started.

Might this be something other than the alarm? Any advice or suggestions would be greatly appreciated.
 
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Dallas TX, Kennesaw, GA
#4
There is no way that should happen after 2 weeks. They need to fix this problem. The tow truck driver that the dealership sent to pick up mine told me "I am sure that I will be seeing you again." Not a good sign for sure. [:(!]
 

flashinthepan

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Oregon
#5
It happened to me as well, after only 4 days,

It appears to be the "Auto climate" control,

When you turn off your car the Fan blower turns off but apparently the internal workings stay on.

I slow-charged my battery overnight & will be in communication with the dealer, I have heard there is a software program issue which can be resolved so your "Auto climate" control turns off when your ignition is off.

In the mean time.

Turn off all heating/cooling buttons when turning off your car & call your service dept., I heard another person had resolved this with re-programming ???
 


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