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02-25-2018, 01:58 AM | #1 |
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Does the technology tell me my car battery is weak or would I just know?
I've been experiencing a weak, laggy engine cold startup and iDrive screen is slow to open when pushing the "start" button since last Summer. Is the technology in the Z4 supposed to inform me of a weak battery or is this something I would know?
I drive the car once every 2-3 days and/or 40 miles a week.
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02-25-2018, 03:37 AM | #2 |
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Your local stealership has a battery tester that can determine if your battery is getting weak. I have changed mine twice since 2009, and noticed the last one was an upgraded bigger battery than the previous. A fresh battery def helps with laggy cold starts as long as you do not park the car for too long. Remember programming is needed after changing battery.
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02-25-2018, 02:07 PM | #3 |
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Apparently certain electronic functions get a little wonky when the battery gets weak. see my post here:http://e89.zpost.com/forums/showthread.php?t=1464508
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02-28-2018, 03:47 PM | #5 |
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Drives: 2008 535xi / 2011 Z4 35Is
Join Date: Jan 2011
Location: Indiana
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No real message. Just symptoms.
The increased discharge warning mentioned above is the biggest clue i think. |
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04-26-2018, 05:24 PM | #7 |
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Does the CCA battery I choose matter if I don't live in cold climate but yet both are the same price and both fit the same make and model?
CCA 760A, Cranking amperage 950 A vs CCA 850 A, cranking amperage 1000 A
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04-27-2018, 06:21 PM | #9 |
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Man, I thought "registering" the battery went into some directory/file in some data bank but all it really is just resetting the stats.
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