Electronics acting up

mo-powah-babyyyy · 12-22-2022, 12:57 AM

Hi,

I have 08 e92 328i, i've been noticing some odds things with my car, recently almost every time i use the car the dates change or reset, am getting a notice on the LCD saying Vehicle battery is discharging, turn off unnecessary electrical consumers and to reset time and date if necessary.

Just wondering if anyone has had anything similar and im taking a guess its my alternator or battery that failing?

Any advice would be appreciated. Thanks!!

ctuna · 12-22-2022, 01:57 AM

Your battery is dying or your alternator is not putting out enough voltage
to charge it.

Check both with voltmeter.

mo-powah-babyyyy · 12-22-2022, 02:58 PM

Thanks for getting back to me, do you think this would also affect the trip tronic stuff as well? the car shifts gear perfectly but in trip tronic its showing wrong gears and sometimes not shifting.

ctuna · 12-23-2022, 12:43 AM

Don't know there could be other issues with that.
But before you can work on anything in these cars they must
be supplied with enough voltage and current to run the electronics

If the car is old and the transmission fluid has never been changed
that could be part of the transmission problem .
I don't buy automatics .

Also this whole discussion actually belongs in the general section.
This is not an audio or car entertainment electronics question.

veneno · 12-23-2022, 09:10 PM

Go through your fuse box and probe around with a multimeter to see where power is getting drawn, although it is starting to get pretty cold out so I'd check your battery also.

mo-powah-babyyyy · 12-24-2022, 03:26 PM

Ill check with the meter, thanks for the input, i assumed the tip tronic might be somethic electrical as the gears shift fine, its just whats displayed on the cluster is a bit wacky.

Ill post back the results including the fusebox suggestion.

mo-powah-babyyyy · 12-28-2022, 09:33 PM

So, i checked the voltage of the battery while running, was 14.6V didnt see anything in relation to the fuse box, but... pulled out all the accessories and yet to get the message of the battery being drained wile stopped. Ill post back in a week to let you know if that the case.

Still unsure about the tiptronic, so i think the alternator might be a little funky

12-22-2022, 12:57 AM	#1
mo-powah-babyyyy New Member 3 Rep 18 Posts Drives: BMW E92 328I Join Date: Aug 2022 Location: Los Angeles iTrader: (0)	Electronics acting up Hi, I have 08 e92 328i, i've been noticing some odds things with my car, recently almost every time i use the car the dates change or reset, am getting a notice on the LCD saying Vehicle battery is discharging, turn off unnecessary electrical consumers and to reset time and date if necessary. Just wondering if anyone has had anything similar and im taking a guess its my alternator or battery that failing? Any advice would be appreciated. Thanks!!
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12-22-2022, 01:57 AM	#2
ctuna Lieutenant General 1992 Rep 13,281 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Your battery is dying or your alternator is not putting out enough voltage to charge it. Check both with voltmeter.
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12-22-2022, 02:58 PM	#3
mo-powah-babyyyy New Member 3 Rep 18 Posts Drives: BMW E92 328I Join Date: Aug 2022 Location: Los Angeles iTrader: (0)	Thanks for getting back to me, do you think this would also affect the trip tronic stuff as well? the car shifts gear perfectly but in trip tronic its showing wrong gears and sometimes not shifting.
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12-23-2022, 12:43 AM	#4
ctuna Lieutenant General 1992 Rep 13,281 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Don't know there could be other issues with that. But before you can work on anything in these cars they must be supplied with enough voltage and current to run the electronics If the car is old and the transmission fluid has never been changed that could be part of the transmission problem . I don't buy automatics . Also this whole discussion actually belongs in the general section. This is not an audio or car entertainment electronics question.
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12-23-2022, 09:10 PM	#5
veneno New Member 0 Rep 5 Posts Drives: 2008 BMW E92 335xi Join Date: Dec 2022 Location: Metro Detroit, MI iTrader: (0)	Go through your fuse box and probe around with a multimeter to see where power is getting drawn, although it is starting to get pretty cold out so I'd check your battery also.
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12-24-2022, 03:26 PM	#6
mo-powah-babyyyy New Member 3 Rep 18 Posts Drives: BMW E92 328I Join Date: Aug 2022 Location: Los Angeles iTrader: (0)	Ill check with the meter, thanks for the input, i assumed the tip tronic might be somethic electrical as the gears shift fine, its just whats displayed on the cluster is a bit wacky. Ill post back the results including the fusebox suggestion.
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12-28-2022, 09:33 PM	#7
mo-powah-babyyyy New Member 3 Rep 18 Posts Drives: BMW E92 328I Join Date: Aug 2022 Location: Los Angeles iTrader: (0)	So, i checked the voltage of the battery while running, was 14.6V didnt see anything in relation to the fuse box, but... pulled out all the accessories and yet to get the message of the battery being drained wile stopped. Ill post back in a week to let you know if that the case. Still unsure about the tiptronic, so i think the alternator might be a little funky
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