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BMW i3 I01 (2014 - Current)
The BMW i3 and BMW i8 are the first two cars launch under BMW's new sub brand BMW i. The i3 is an all carbon fiber, all electric vehicle meant for urban mobility.

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Old 06-25-2019, 04:35 PM
mullini mullini is offline
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Location: Redondo Beach CA
 
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Mein Auto: 2017 BMW i3 BEV
Unhappy airbag recall - dealer says battery draining

Well I've had my 2017 BEV almost exactly 2 years now and love it. I never worried too much about the airbag recall, being neither I nor my partner are females under 5'2" and 110 pounds or whatever the details were that prompted the recall. But I recently moved to Vista (near San Diego) and after a nice first service visit at BMW of Vista in April, I responded to a letter from them saying they were ready to do the recall and it should be done.

OK I'm trying to get to the point. This is Tuesday afternoon and I took my i3 in Monday at 7am. I still don't have it back. First day was apparently just service area nonsense, "Oh we worked on other cars and oops." But this morning around 11 SA calls and says "we did the software update but now the battery won't hold a charge. We're working on it." So I wait and of course, as afternoon comes, no call back. I leave voicemails for SA. Nada. Finally I call service desk. SA went home sick. Battery still draining. They'll keep it overnight again.

So how panicked should I be? or would you be?

UPDATE AS OF WEDNESDAY 9AM PACIFIC: So according to a different SA who called around 5pm last night, it's not the "big" battery but the "low voltage battery" that is the issue. Frankly I didn't really consider the i3 had both. At any rate, he said if it continues to discharge, they just replace it under warranty. But it's Wednesday morning and still waiting for next update...

Last edited by mullini; 06-26-2019 at 09:17 AM.
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  #2  
Old 06-27-2019, 05:15 PM
jadnashuanh jadnashuanh is offline
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Mein Auto: 535ix-drive GT; i3 BEV
Sometimes, various modules don't like to play nice after doing a s/w update. FWIW, when they do a s/w update, the data gets compiled specifically for that vehicle to account for any variations on supplied vendors and options. There isn't a generic s/w build.

FWIW, if the 12vdc battery dies, the car is dead even if the main battery is fully charged...that 12vdc battery powers the computers, and they need to be running to run the car, so it is an unfortunate issue. All it takes is one module that doesn't get the shut down message from the main computer to drain the 12vdc battery. That could be from bad software, or a flaky serial data communications connection, or two modules not playing by the rules on sharing the bus, and probably other issues as well.
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Old 08-05-2019, 01:48 PM
sipabit sipabit is offline
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Location: Bay Area
 
Join Date: Mar 2018
Posts: 45
Mein Auto: 2016 BMW i3 REX
FYI, AAA won't replace your 12v battery. They don't really know how and even if you instructed them on how to remove the frunk bin to access it, they don't carry our battery size but don't bother to tell you until they show up at your place even when asking about it on the phone.

Glad it's the small battery. It's still a few hundred dollars if it happens after your warranty period is over. Plus BMW has to do it b/c they need to register the battery. After market places typically won't have the tool to do it. There are some certified ones that'll do it but it'll be too pricey for it to be worth swapping batteries yourself and only going to them to register.

I found all this out the hard way, so hopefully this saves you or other readers some time/hassle.
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A fanatic of all things electric. Ridables like electric ice chests and stand up scooters I adore. Drones like DJI, I root for. I'm a fan of both, but nothing beats my love for my 2016 i3 Rex with Deka World. Shhh, don't tell my wife.
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Old 08-06-2019, 04:52 PM
mullini mullini is offline
Mullini
Location: Redondo Beach CA
 
Join Date: Aug 2012
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Mein Auto: 2017 BMW i3 BEV
I'm sorry I never updated after that Wednesday morning - not long after, I got my i3 back. So it took three days to get my i3 back after taking it in for the airbag recall. First delay was just classic service "oops we'll get to it first thing tomorrow." Then the battery issue came up. I knew nothing about this second battery, and I'm glad to get more info, like this note about AAA. But for my i3, once they successfully recharged the battery, my car was ready and has run as well as ever. I bought my i3 in June 2017. Kinda thought by now there's be other EVs out there that would make me feel like i jumped in too soon, but I don't feel that way. I have a gas Audi for long trips. The i3 is my workhorse for most day-to-day driving. In a few years I may trade it in for a longer range EV, but part of me wants to keep the weird, wonderful i3 forever, one of very first mainstream EVs one could buy.
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