scotty

On 07/03/2016 at 11:06 PM, qstu said:

do a search and u will find i had the same thing turned out to be the ecu climate control unit in the dash had a fault and would wake up all the modules with would drain the battery other site i uses is vw audi forum

Is there anyway I can test something to find out if it's the ecu ??

Hi James,

as far as I know it's the original battery

thanks

I have a 2007 Q7, which seems to drain the battery whenever it feels like it. the car can sit from friday night to monday morning and starts no problem, and some mornings nothing at all. I did notice this week, that there seems to be some sort of electric motor running behind the n/f wheel arch, with the car switched off and locked. tried unlocking it and it still stays running. next morning battery flat. listened all day when switching off and couldn't here anything, car started all day without problem. following day stopped at work and heard this motor running again, finished work and again wouldn't start. Anyone got any ideas what this could be ?

thanks