11-20-2020, 11:19 PM | #1 |
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Vehicle key: battery empty
In just 1 year and with minimal driving between now and March!! Anyone else experienced this and as simple as just taking it to the dealer and getting it replaced or can I change it myself easily?
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11-21-2020, 10:47 AM | #2 |
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I just replaced mine myself rather than driving to the dealer.
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2021 BMW G20 M340i xDrive - Verde Ermes/Black - 03/2024.40
2019 BMW G05 X5 xDrive40i - Phytonic Blue/Cognac - 11/2023.50 |
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11-22-2020, 01:53 AM | #3 |
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11-22-2020, 03:46 AM | #4 |
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Yep its normal. I just replaced mine, lasted about 14 months (from Sept 2019).
These definitely draw more power, in comparison the battery in my F15 used to last 2-3 years. |
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11-24-2020, 10:29 PM | #5 |
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Well so I replaced it with a brand new battery but the car still keeps giving the same error message. What am I doing wrong? I tried three new batteries and the same status on each of them.
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11-25-2020, 12:53 AM | #6 |
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If the batteries in that batch were old...they have not have much capacity left. BUt, if you're sure they're good, the fob may be defective.
Some of the battery packaging shows a 'good until' date...if it does, check. IF they are not stored properly, they can discharge as well. |
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11-25-2020, 03:31 PM | #7 |
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There was discussion that some batteries may not work well (their current output capability is too low). Try another manufacturer.
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11-25-2020, 09:12 PM | #8 | |
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11-26-2020, 01:33 AM | #9 | |
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12-01-2020, 01:34 PM | #10 | ||
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12-01-2020, 06:37 PM | #11 |
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Another tip is storing your key(s) far enough away from the vehicle so that they don't constantly talk to one another. When I stored my keys just inside the garage (~8' away from the X5), the keys' batteries only lasted a couple months (especially the rarely-used secondary key). I've moved the keys a few more feet away, and voila -- no more dead batteries.
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12-01-2020, 06:51 PM | #12 | |
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12-01-2020, 07:16 PM | #13 | |
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I think it goes to sleep even if you are in the car. It's happened to me several times with my wife's key while she's sitting in the car. I leave and walk away from the car and locks when I reach that distance where it automatically locks. I have comfort access set to "Lock when Leaving" but NOT "Unlock when approaching". I think I've narrowed the problem down to the seat belt. If my wife takes off her seat belt the car locks when I leave her in the car. If the seat belt is on the car doesn't lock. In my opinion none of that should matter. If her key is present the car should not lock period! |
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12-01-2020, 10:09 PM | #14 | |
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My spare key which has always been stored less than 6 feet away from the car has no sign of a low battery in over a year so this theory is bogus. |
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