BMW 2009 325i battery drain

[TheD]

Hi Guys,

I have had to put another new battery in the car due to them being drained completely. The garage has run all sorts of diagnostics and can find no faults. If it is left for more than 3 days it wont even open the doors never mind start. I have no access to power so cannot use a trickle charger. Undoing the battery is also a nightmare as it throws up all kinds of problems.

Any ideas are more than welcome.

It is a shame as it is otherwise a great car.

Edit...sorry if this is in the wrong forum. Please move as appropriate

[Gassmi]

Sounds like the tracker or alarm is pulling it down slowly. Common on these. Ask the garage to do a parasitic drain test over a few days, not just a quick scan - they need to watch it while everything sleeps.

Also worth checking if it's got a dashcam or anything aftermarket wired in, those kill batteries if not done properly.

No power at all where it's parked? Even a cheap solar trickle charger on the dash would keep it topped up if there's any light.

[TheD]

Thanks Gassmi...Good advice there..Thanks