IBS issue or what?

scoofee · 11-30-2018, 05:16 PM

My 2008 328i e92 feels like is loosing power while its off. I have replaced the battery. I drive short trips almost daily.(10-15min)

The symptoms are:
- when I unlock the car, the welcome lights dont turn on ( only after a long drive )
- time falls behind constantly
- if I have the key in the ignition with the engine off but I want to listen to the music, the battery icon shows after few min and then turns off.

Is this a IBS cable issue?

Thank you very much for your time.

BravoJohny33 · 11-30-2018, 05:25 PM

INPA will tell you.

TheeGovernor · 11-30-2018, 06:51 PM

also consider a battery going bad

ctuna · 11-30-2018, 07:36 PM

You should consider getting a battery tender such as a
Ctek 4.3 or better and using if for a long slow charge
a couple of times a month.

How long ago did you replace the battery?
Did you replace it with one that had a higher or equal
amp hour rating?
Was it the same type of battery (lead acid or AGM)?
If you replace the battery with the same spec battery you should
register it .
If you changed battery types the car has to be reprogrammed
for that type and capacity.

More likely the IBS is doing what it's suppose to do.
electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU

Efthreeoh · 12-02-2018, 11:04 AM

You need to drive it more, or keep the car on a battery tender. E9X's are electrical hogs. 10 - 15 minutes of drive time is not enough to keep the battery charged up when the sitting time is added in.

11-30-2018, 05:16 PM	#1
scoofee Registered 0 Rep 4 Posts Drives: 2008 e92 328i sport package Join Date: Nov 2018 Location: Vancouver iTrader: (0)	IBS issue or what? My 2008 328i e92 feels like is loosing power while its off. I have replaced the battery. I drive short trips almost daily.(10-15min) The symptoms are: - when I unlock the car, the welcome lights dont turn on ( only after a long drive ) - time falls behind constantly - if I have the key in the ignition with the engine off but I want to listen to the music, the battery icon shows after few min and then turns off. Is this a IBS cable issue? Thank you very much for your time.
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11-30-2018, 05:25 PM	#2
BravoJohny33 Major 310 Rep 1,016 Posts Drives: BMW 2010 Join Date: Mar 2016 Location: GA iTrader: (0)	INPA will tell you.
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11-30-2018, 06:51 PM	#3
TheeGovernor Life is better with burnouts 96 Rep 611 Posts Drives: BMW Join Date: Dec 2011 Location: Mile High iTrader: (4) Garage List 1996 Toyota Forklift [0.00] 2007 BMW 335i [0.00]	also consider a battery going bad
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11-30-2018, 07:36 PM	#4
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	You should consider getting a battery tender such as a Ctek 4.3 or better and using if for a long slow charge a couple of times a month. How long ago did you replace the battery? Did you replace it with one that had a higher or equal amp hour rating? Was it the same type of battery (lead acid or AGM)? If you replace the battery with the same spec battery you should register it . If you changed battery types the car has to be reprogrammed for that type and capacity. More likely the IBS is doing what it's suppose to do. electical e90 pdf http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja http://www.google.com/url?sa=t&rct=j...85464276,d.cGU http://www.google.com/url?sa=t&rct=j...85464276,d.cGU Last edited by ctuna; 11-30-2018 at 07:48 PM..
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12-02-2018, 11:04 AM	#5
Efthreeoh General 17303 Rep 18,726 Posts Drives: The E90 + Z4 Coupe & Z3 R'ster Join Date: May 2012 Location: Virginia iTrader: (0)	You need to drive it more, or keep the car on a battery tender. E9X's are electrical hogs. 10 - 15 minutes of drive time is not enough to keep the battery charged up when the sitting time is added in. __________________ A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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