[nazali]

so since yesterday (after putting my ista on) have been getting battery discharge.

no errors and battery is not showing a discharge in ista

so last night I put my BMW charger on all night, went into maintain mode.
This morning had the "battery discharged, start engine"

So took it for a drive (about 10km round trip) and came home same thing
So then I took it up on the highway for a long fast trip, about 40km round trip came home same thing, on my drive I had nothing on, no lights, no radio etc

also idrive says something like, "shutting down some devices to preserve power"

So I checked my battery voltage, approx 12.65v at the jump start terminal and approx the same on the battery, put another charger on NOT the BMW one, shows charging voltage around 13.22v

Disconnected dash cam etc, have nothing drawing voltage ?

what gives

OH BMW put a new battery in when I got the car 2 months ago

[nazali]

have been doing short trips, but been doing that past few months without issue

[nazali]

and just like that it stopped, the only thing I did, was switch off the lane avoidance and when parking don't leave it on auto, can't see thoes 2 things doing anything,
but anyway, no more alarms
txs all

[imarockstar]

i had the same issue before snaptube vidmate

[nazali]

Crazy isn't it !

I'm finding leaving the autolights on, causes a sluggish start, so I just switch it off LOL

Not sure that the temp has got cooler. I don't have time for BMW to investigate it, they'll have the car for a couple of days and end up reflashing it.

There's something to be said about pre-2000 cars, not having all this bloody technology in it draining batteries

Originally Posted by imarockstar

i had the same issue before

[nazali]

My previous BM (1'er) had no problems, even middle of winter, comfort access, autolights, auto wipers, only thing it didnt have was all this remote start wifi crap and concierge and wifi hotspot , I'm sure this drains the batteries

[Mogki]

I've never seen any discharge problems with my 2 so far thankfully even with all the extras i have on and connected in, the only car i did have that also had discharge problems was a Hyundai that actually had issues in the wiring harness so it was a deep rooted issue.

Honestly if you can it might be best to try get the dealer or a garage try to check the draw at the battery once the car goes to sleep to check if it is really dischargeing or a computer error

[nazali]

I may well do that,

I have done some work on this and can see no shorts, or actual battery discharge, it could be a module is not ltting the car go to sleep though

I mean I am no expert, but see attached, I've recently put the autolights off

Originally Posted by Mogki

I've never seen any discharge problems with my 2 so far thankfully even with all the extras i have on and connected in, the only car i did have that also had discharge problems was a Hyundai that actually had issues in the wiring harness so it was a deep rooted issue.

Honestly if you can it might be best to try get the dealer or a garage try to check the draw at the battery once the car goes to sleep to check if it is really dischargeing or a computer error