Posts: 1
Joined: Thu May 18, 2017 11:04 am

Software update - unable to set low-cost charging

Thu May 18, 2017 12:41 pm

Just had a software update applied by BMW while my 2017 i3 REX was in for the minor REX recall. Now neither the vehicle nor the app will let me keep the "low cost charging" option setting. The low-cost rate window is still correctly set in my car, and I even changed each value by 1 minute (start/end time) to force an update, just in case that fixed it (it didn't). It lets me select low-cost option, it just doesn't work / respect the setting.

For example, if I park my car for the night and try to set leave time of tomorrow and low-cost charging, the car now resets back to charge immediately after a few seconds. Even if I quickly leave the car, or left-click to accept parameters, before it resets the setting, as soon as I plug in it starts charging. This will be a huge issue (>7x cost per kWh) when peak / summer rates come in, and is already 3x more costly (per my local EV tariff) to charge off-peak vs "super off-peak" or overnight.

I tried to use the app to force next planned trip through with low-cost charging and it will not work either. In this case, the new departure time won't even be accepted at the vehicle now.

Anyone else having trouble with the charge scheduling feature for low-cost? It worked until I got the update last week (w/o May 11, 2017). I'm asking the local dealership who provided the update about this and will post any learnings.

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Posts: 390
Joined: Fri Apr 29, 2016 11:59 pm
Location: Huntsville, AL

Re: Software update - unable to set low-cost charging

Sat May 20, 2017 10:32 pm

This explains something I first saw yesterday. I tried to use the app to precondition the car and it did not work.

Bob Wilson

Posts: 211
Joined: Mon Jun 06, 2016 12:24 pm
Location: Bottom right hand corner of Wales

Re: Software update - unable to set low-cost charging

Fri May 26, 2017 3:03 pm

What software version out of interest? Mine is on


And also out of interest what are your low cost tariff times set to?

Posts: 1
Joined: Mon Jun 12, 2017 2:25 pm

Re: Software update - unable to set low-cost charging

Mon Jun 12, 2017 2:29 pm

This removal of the low cost charging option is a bug in the current software release. Supposedly the engineers know about it, but we have had this bug since mid April and nada from BMW service as to when it will be fixed.

We live on solar/Time of Use rate system in CA so need to get up at midnight each night to plug our car in. We are NOT happy campers to say the least. We also asked if BMW would let us revert back to the old version and the answer is no.

Once you bring your car into the dealer for service, and it is hooked up to the compeer system for diagnostics, it will automatically get this update are remove the low cost charging option form working.

Posts: 34
Joined: Thu Jul 14, 2016 12:43 am

Re: Software update - unable to set low-cost charging

Mon Jun 12, 2017 9:52 pm

As a short term solution, can you not set up the timer from the EVSE side, rather than the car side (i.e. a wall socket timer for the occasional use EVSE, or a switchboard timer for a Wallbox EVSE)?

Following on from that, if you used a device like a Wemo Switch plugged into the occasional use charger, not only could you set timer functions but you could also control it remotely via its app as it is WiFi connected. :-)

If you have a wall mounted Level 2 EVSE, check to see if you can enable/disable it via a relay contacter. If you can, you could use a device like the Wemo Maker to control it remotely. :-D

I use a Wemo Maker to control my garage door. It's great!

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