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https://fuseandrelay.com/bmw/i3.html

It's not a BEVX (Battery Electric Vehicle with Range Extender) like the i3. It's just another Plug-in Hybrid. You can choose to use Electric mode (no gas), 'Regular' mode (gas engine kicks in at 40% charge), or Charge mode where you get to set the charge to maintain. A BEVX has to wait until...

I would start by looking up the parts list based on the last 7 digits of your particular VIN: https://www.realoem.com/bmw/enUS/select Then browse to: "Audio, Navigation, Electronics System" and below that: "Central Information Display" That will show you all the displays that might have come on...

Did you try the "Place key here" spot on the side of the steering column? That uses a separate short-distance RFID chip in the key fob to let you start the car when the fob battery dies. Maybe that part of the immobilizer still works.

A Google search turned up some non-Bridgestone brands in 155/70R19 so you have some choices for the BEV. 155/70R19 Nokian Hakkapeliitta R5 Continental VikingContact 7 Continental sContact The only tires I could find in 175/60R19 (REx rear) are the Bridgestone Ectopia and Blizzak According to...

I would look up the part number and search for that on eBay.

At least your errors happen before charging starts. :| At the Electrify America chargers at one of the local malls, I get about 10 minutes into a walk around the mall when I get a message telling me that my charging session has ended and I have ten minutes to move the car before they start...

The most fuel-efficient electric generator type is a combustion turbine. This video shows one small enough to replace a REX: https://www.youtube.com/watch?v=Al8elCF816g Note that it only produces 700 Watts (the REX does 25kW) and they hope to get the price down to 'several thousand dollars'.

Ouch. I just did a rough estimate of the efficiency of the REX. It gets about 2 kWh per liter. The energy density of the gas is 8.76 kWh/l so that would make the REX about 23% efficient. One question is what measure of 'efficiency' did you want to optimize? Volumetric efficiency (kWh per...

My 2017 i3 came with the smaller screen and I replaced it with this: BMW part 65509306743 = 10.25” Central Information Display Label on the display: CHIMEI INNOLUX L6 CID MU 10.25” [HW][00 06][FDV][30 07] 185206-10 I found it on AliExpress.com as: Free shipping CHIMEI INNOLUX BM...

If you have a 120 Ah (37.9 net kWh) battery and charging at 7.2 kW your charge should go up 1/2% in 95.2 seconds. If the change takes twice as long, you are charging at half the rate. If it's a 94 Ah (27.2 net kWh) battery the 1/2% should take a little over 65 seconds.

On those charging networks that show a charging graph, I see that my 2017 i3 doesn't slow the Fast DC charge rate (usually 48kW) until the charge reaches about 95%. I take that as a good stopping point. I find it amusing when some charging network sends me a "Your car has reached 80% charge"...

Your car has either a 3G or a 4G LTE cellular modem under the back seat. Which you have, I think, depends mostly on the build date. My 2017 model (built in October of 2016) has a 4G LTE modem. Many carriers are shutting down 3G service so if you have a 3G modem you eventually won't be able to...

The REX should not only stop when you park the car, it should stop as soon as the car comes to a stop at, for example, a stop sign or traffic light. I think you might be hearing the cooling fan. You can run an "emissions test cycle" if you want to make sure the REX is in good operating...

If you use a ChargePoint charger, the ChargePoint app will show a graph of charge rate (in kW) over time. It's not a great chart, with only three marked levels on the vertical scale, but you can probably read within a few kW.

So a much larger portion of your charging was at the higher tier rate. That means your savings by switching to TOU would be even greater.

I wonder why the REX kicked on. Is it something that happens automatically after an oil change? Was it due for a maintenance run? Was the battery below 6.5%?

Don't they give the battery capacity in Amp Hours like the BMW literature? That would be 60 Ah, 94 Ah, or 120 Ah. Did they make a 2018 model with a 120 Ah battery? Did they make a 2019 model with a 94 Ah battery? I thought that 2017 was the only model year where you could get two different...

"I use about 1300-1500 kWh per month." So roughly 47/day "I do about 250- 350kWh worth of EV battery recharges weekly." So roughly 43/day. Non-TOD: High Season: 0.44 + 10*0.1620 + 10*0.2008 + 27*0.2398 = 0.44 + 1.620 + 2.008 + 6.4746 = $10.5426/day Low Season: 0.44 + 10*0.1358 + 10*0.1682 +...

It won’t be much help but I bought a ‘defective’ charger from eBay with the same symptom. I wanted one I cou.d take apart. After opening it, unplugging everything, and putting it back together a few times, THE FAULT WENT AWAY. It just powered up normally. To open it up I needed a “Security...