battery drain overnight

[flat out]

morning all

so after i have finally sorted my no boost issue on my car another gremlin creeps in.

if my car stands over night the following morning the battery is totally flat and i am unable to start the car.I have to jump start the car to get it going but even when doing this it takes a long while before it actually starts. there is no tracker in the car that can be draining the battery.

So can someone please point me the right direction to start looking to solve my dilemma.

 

[JohnLod]

morning all

so after i have finally sorted my no boost issue on my car another gremlin creeps in.

if my car stands over night the following morning the battery is totally flat and i am unable to start the car.I have to jump start the car to get it going but even when doing this it takes a long while before it actually starts. there is no tracker in the car that can be draining the battery.

So can someone please point me the right direction to start looking to solve my dilemma.

Hi, what model do you have?

 

[flat out]

2005 E90 320D

 

[JohnLod]

There was a post not to long ago of some one who said their problem was the alternator, have you done a current draw test?
Need to connect an ammeter and start disconnecting components, just wait till it is in sleep mode (start/stop light goes off) to get correct reading.

 

[flat out]

the alternator was replaced roughly 3 months ago with a brand new unit and a new battery was put in about 2 months prior to that

i guess i will have to go see an auto electrician then

 

[JohnLod]

Let me know if I can assist you.

Regards

 

[flat out]

will do and thank you

 

[SylisM]

Used to have the same issue with the X5 after purchasing a new battery for it. But after a while it stopped.

Hope you manage to sort your problem out soon mate.

 

[prospect]

Do you have a tracking unit?

 

[sumeshnee_za]

I had a similar issue with one of my previous cars (not a BM). If you don't have a tracking device installed, maybe check if there's something else that should be running on its own independent battery which gets charged by your car battery when the car is running, maybe that devices battery is faulty and is pulling power from your battery while your car is switched off. (Look at the alarm system, maybe) Also if you bought this car from someone else, they could have installed a tracking device which was not removed before handing the car over to you.

Sent from my 2014817 using Tapatalk

 

[AKAJojo]

I had this issue on my e36 and it mysteriously went away *knock on wood* but I would suggest as a quick fix until you get the problem resolved get a battery cut off switch. Such as this. http://m.ebay.com/itm/Car-Battery-L...ter-Kill-Shut-Switch-/122179491782?nav=SEARCH

I know it won't fix the issue but it'll stop the drain so you can get where you need to go.

Sent from my FRD-L04 using Tapatalk

 

[abmi0000]

Final stage units on the E46 BMWs were notorious for this when it went wonky.
Not sure if this was the case with the E90s.

You could pull some fuses which are relevant before you park her off to determine which component is drawing current overnight. Naturally this would take time as you can't pull all out at one go

 

[Waseem 333i]

Myself and another fanatic found the parasitic drain on his car. Took us about two hours to find it with the use of a multimeter. What takes long is waiting for the car to go into sleep mode. If you wish you could bring it around to me and we can have a go at finding the issue.

 

[flat out]

Hi Waseem thanks for the offer i might just need to take you up on it. where about are you based?

 

[Waseem 333i]

I am in the east rand

 

[flat out]

well that is bit far for me im in cape town:roflol::roflol:

thanks for the offer though

 

[Waseem 333i]

Still not an issue. I can use the whatsapp tool to assist lol 0826715571

Sent by my cellphone