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With the i3 REx, Reduced Power can occur if the operator continues to use more energy than the REx engine can produce. Examples of this would be continued high speed (over 70 mph) driving or long, sustained hill climbing. However this new problem that has plagued some i3 owners isn't caused by over-taxing the REx.  Someone once said, "You could always tell the pioneers by the arrows in their back."  A recent software bug has cropped up that seems to be affecting many of the early build and higher mileage i3s that are mostly driven by the early adopters. The problem causes the car to go into reduced power mode, or in some cases shut down without warning when the display shows about 5% - 6% battery remaining. In mid 2016, BMW released a software update, (version 16-07-501) that was supposed to correct the issue, but for some unknown reason it didn't work on all of the vehicles. They then sent out letters to the early buyers to inform that they need a software update. Re

Over the course of 56,000 miles, I've driven on pure battery 96% of the time. My 2014 BMW i3 REx is now 27 months old, and the mileage on the odometer just recently surpassed 56,000 miles. I've needed a little over 15,000 kWh of electricity, and exactly 50 gallons of gas to power the vehicle thus far. That means I've driven on pure battery about 96% of the time, and managed an impressive overall gasoline consumption of 1,120 mpg. Normally I wouldn't highlight the gasoline use in my electric car; it's really not something most electric vehicle owners like to do. However, as many Chevrolet Volt owners can attest to, adding a range extender to a short range (under 100 mile AER) electric vehicle can expand its versatility immensely. While I haven't needed to use the REx often, there were plenty of times, especially in the winter, that I was very happy it was there. Back in early 2014, a few months before the North American i3 launch, I openly debated whether I'd

The "Hold state of charge" feature shown here on this i3 display is at the center of the recently filed lawsuit alleging the BMW i3 REx is unsafe to drive. Recently news has spread of a class action lawsuit filed in the state of California by MLG Automotive Law alleging that the BMW i3 REx is dangerous and "can result in a catastrophic situation for all those on the road." This, in my opinion, is grossly misleading. However in fairness, to say the vehicle can be driven like any other car while the range extender is in use is also grossly misleading. To understand the juxtaposition of those two statements takes some explanation. The truth is, the plaintiffs aren't making this up. What they are describing in the lawsuit is called "Reduced Power Mode" and it can happen under certain strenuous circumstances when the vehicle continues, for a prolonged period, to consume more power than the range extender can provide. In this post I'm going to attemp

A Samsung employee shows of one of the new 94Ah battery cells which I predict the 2017 i3 will boast Ever since last October when  BMW CEO Harold Krueger stated that the 2017 i3 would have an increased electric range, there's been speculation on how they would accomplish it. While BMW hasn't made any official  announcements yet, it's widely believed that BMW will be using the new Samsung 94Ah battery cells for the 2017 i3, which I first speculated here, back in November.  The current i3 uses 96 Samsung 60Ah battery cells which are 3.75v ea. This adds up to a total of 21.6kWh (96 x 60 x 3.75= 21.6). The new 94Ah cells are the same physical size and voltage so an upgrade to these cells would mean BMW could use the same modules and battery tray, greatly reducing the cost as compared to engineering all new packaging for the new cells. Therefore, the new pack should increase from 21.6kWh to 33.8kWh (96 x 94 x 3.75 = 33.8). If the weight of the cells is the same, that should incr

Like all of GM's plug in vehicles, the charge port on the upcoming Chevy Bolt is located on the front left side of the vehicle. Did GM get this right? Over the past six years I've interviewed and had discussions with electric vehicle product managers from just about every company selling EVs today, and a few that will be selling EVs in the near future. One of the more interesting topics I've found has been the subject of where they've decided to locate the charge port, and how they came to that decision. For example, last month at the North American International Auto Show in Detroit, I sat down with Daimler's manager of electric motors and power electronics, Franz Neitfeld to discuss Daimler's current plug in Hybrid offerings, and where they are going in the future. When I brought up the topic of the unusual charge port location that Mercedes is using on all of their PHEVs, he told me they gave this much consideration, and after doing so they decided the right

Details of the November software update ( 15-11-502 ) for the i3 and i8. Click to enlarge or download. BMW has just rolled out another software update (15-11-502) for the i3 in the North American market. Since the i3 launch, these updates have been coming out about once every six months, and as with previous i3 software updates, they are free of charge. Hopefully this time around BMW dealers know these updates are indeed free. Last year when BMW introduced an i3 software update, for some reason there were some dealers that charged their customers for the service. Once BMW realized what was happening, they reached out to their dealer network to inform them that these i3 updates are indeed free, and they were instructed to refund the money to anyone who was charged for it. If you were one of the people who unfortunately paid for an i3 software and wasn't reimbursed, please contact your dealer and they will refund what you paid. This new update is a combination of fixing some nagging