Parasitic Battery Drain Measured on 1990 Audi 100

[Cody Forbes]

They also have levels of shut down. Most shut down to one extent when you turn off the ignition, to another degree after some waiting period and or locking the doors, and a third extent after 24+ hours of inactivity. 

BMW goes so far as to selectively shut down individual components based on actual battery voltage and in theory will never let a draw bring the battery to a point that it doesn't have a shot at cranking the engine. It will then subsequently disable radio/air/etc until the battery has sufficiently recharge during driving.

-Cody Forbes (mobile)

> On Jul 22, 2015, at 2:27 PM, Grant Lenahan <glenahan at vfemail.net> wrote:
> 
> Actually, on modern cars, they do. The systems shut down after about 15 minutes. On newer Porsches - i can’t speak for audis - when you lock it it goes to sleep.
> 
> Grant
>> On Jul 22, 2015, at 2:19 PM, Huw Powell <audi at humanspeakers.com> wrote:
>> 
>> No car designer takes regular two week down times into account.
> 
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