GRA
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Location: East side of San Francisco Bay

Re: Official BMW i3 thread

Mon Jun 23, 2014 6:58 pm

Via insideevs.com, and Tom M's blog (Tom had previously written about his likes):

"BMW i3 – 2,000-Mile Real-World Review – The Dislikes"

http://insideevs.com/bmw-i3-2000-mile-r ... -dislikes/" onclick="window.open(this.href);return false;
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

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redLEAF
Posts: 1709
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Delivery Date: 23 Dec 2011
Location: Chicago, IL

Re: Official BMW i3 thread

Tue Jun 24, 2014 6:12 am

GRA wrote:Via insideevs.com, and Tom M's blog (Tom had previously written about his likes):

"BMW i3 – 2,000-Mile Real-World Review – The Dislikes"

http://insideevs.com/bmw-i3-2000-mile-r ... -dislikes/" onclick="window.open(this.href);return false;
Excellent write-up ... you would think that mfg's would 'learn' from others who already have had EV's out there as to what customers like or dislike, especially with BMW's own approach with the MINI-E and Active-E trials. Others of course are entitled to their opinions but 'real life' comments on living with one of these is great. Here in IL it seems we're under a constant state of road repair so the narrow tires and the need to fight the wheel, etc. would actually be a bigger deal (LEAF has no noticeable issue with these); the other idiosyncrasies like the charge cover cap, etc. probably not as much. The i3 is indeed in the premium price range to start off with but does come with a lot of standard equipment, with it being so close (at base of course) to the MBZ B-class, as well as both coming from Germany I'm sure we'll see more head to head comparisons as well although the i3 is a ground up EV as compared to the 'converted to EV' approach that MBZ took with the B-class.

Would love to see more discussion on using the extender; noticing one of the comments posted on the 'likes' blog --- the i3 is NOT like the Volt where you could take it on a very long trip by filling it up every 300 miles or so but pushing the i3 to the limit I would wonder how much range in gas only would be realistic w/o putting too much strain on that tiny motorcycle-based engine.

If you always keep it in mind of the 'majority' of how you drive that helps but when/if you need to downsize due to retiring, etc. going to something as multiple purpose as possible lends itself to being your only car. I also forgot about the slightly elevated ride height which is a favorite of mine -- our trip car is a mid-size SUV and actually our little smart ICE rides a bit taller as well ... this is a definite plus with me for the i3 but will also probably prefer the MBZ B-class in the long run once that becomes more broadly available.
2018 smart ED Brabus (leased)
Sapphire Blue Metallic
2017 Tesla Model 3 LR RWD; EAP; 19" sport wheels
Red Multi-coat
2015 VW e-Golf LE (traded-in for Model 3)
2012 Nissan LEAF SL (traded-in at 5 yrs; 46K miles)
EVSE: 10/07/11 Schneider EVlink

cwerdna
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Location: SF Bay Area, CA

Re: Official BMW i3 thread

Sun Jul 20, 2014 6:24 pm

I thought someone posted about the engima of i3 US sales (some folks are still waiting for theirs while there are units in stock at dealers). Anyhow, the numbers are at http://insideevs.com/monthly-plug-in-sales-scorecard/" onclick="window.open(this.href);return false;.

https://www.facebook.com/groups/BMWi3/p ... 399050891/" onclick="window.open(this.href);return false; by a member states that Stevens Creek BMW (in Nor Cal) has 14 on the lot: 8 base models (?) and 3 REx versions.

Personally, I suspect those 8 aren't base models but just EV-only versions, not "stripper" units.

I wonder if this will eventually turn into a US sales fail for BMW.

'19 Bolt Premier
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'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

Valdemar
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Re: Official BMW i3 thread

Mon Jul 21, 2014 12:26 am

I saw my first one in the wild yesterday night. I don't mind the design overall, but I have to admit it looks ugly from behind with the taillights on.
'11 SL, totaled
-1CB@33k/21mo, -2CB@53k/33mo, -3CB@68k/41mo, -4CB(41.5AHr)@79k/49mo, -5CB(38.85AHr)@87.5k/54mo
-0CB(66.14AHr)@87.5k/54mo (BBB), -1CB(53.92Ahr)@140k/29mo,
51.1AHr, SOH 80%, 150k miles

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cwerdna
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Re: Official BMW i3 thread

Mon Jul 21, 2014 12:30 am

I've yet to see a single i3 on the road in the Bay Area.

The only ones I've seen are at auto shows, i3 driving events (e.g. test drive event at CES in January 2014 (I test drove 2x)) and when I went to meet two folks (one of whom is here on MNL) who bought/leased their i3's. I guess I'm not too surprised given their low sales numbers and relatively wide distribution (vs. say CA compliance cars).

OT, I just noticed your capacity bar situation... not sure if you'd opted out of the class action settlement, but if you haven't, If I were in your shoes, I'd be looking to park my Leaf over in Phoenix outside for the summer so that it loses it's 4th capacity bar before hitting 60K miles... Looks like temps are pretty toasty there. According to the Yahoo Weather app, the high temps for the next 10 days range from 104 to 111 F. Lows range from 82 to 91, w/most being in the upper 80s to 91.

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'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

Valdemar
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Re: Official BMW i3 thread

Mon Jul 21, 2014 1:14 am

The CB situation is not a happy one as I didn't opt out. Yes, the idea to send my Leaf to a summer desert vacation did cross my mind, but it would probably cost me 3k if not more to do this. As of a month or so ago I had 215 gids, so it can take a while to lose 2 bars, and in the end there is always a risk to get a used battery as the replacement. The car should work for my needs for 2-3 more years, so I'd rather push it as long as I can and then think what to do next, with the most likely option being a replacement pack from a junkyard, and the second likely is to give it to my wife, even 40 mile range should be ok for her commute.
'11 SL, totaled
-1CB@33k/21mo, -2CB@53k/33mo, -3CB@68k/41mo, -4CB(41.5AHr)@79k/49mo, -5CB(38.85AHr)@87.5k/54mo
-0CB(66.14AHr)@87.5k/54mo (BBB), -1CB(53.92Ahr)@140k/29mo,
51.1AHr, SOH 80%, 150k miles

9kW Solar

edatoakrun
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Leaf Number: 2184
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Re: Official BMW i3 thread

Thu Aug 14, 2014 7:02 pm

I've posted previously why an only ~25 kW range extending generator that the driver cannot select until the battery is near depletion would not provide satisfactory (or even safe) performance in mountainous areas.

At first I thought the I-3 forum post below was probably exaggerating a bit, as highway 17, with only ~1,800 ft. of ascent, is not even very much of a climb, in comparison to many other California highways:
I picked up my BMW i3 REX yesterday. I live in the SF Bay Area (North-east corner). I frequently travel to the beach near Santa Cruz, CA via Highway 17 (for those who may be familiar with the area). I feared that this could be a challenge for the i3 as the base of the hill over to the beach is about 60 miles away from home (meaning battery could run out before climbing the hill).

Let me start by saying I knew that REX mode has some power limitations, and I don't expect to use the REX in daily commuting. But this is a trip I make every couple of weeks. I saw no definitive info from BMW on the nature of the REX limitations, but had read online that you could cruise at 75MPH on flat ground and that it would maintain 45-50MPH on grades. The speed limit on Highway 17 is 50 MPH, so I felt like even the worst case would be tolerable. I was wrong.

After the ICE kicked on, the car maintained speed for maybe 5 minutes, then began to feel very weak. On the next uphill section, my speed fell quickly from 50MPH down to 25MPH and was falling (this while at WOT). Cars backed up behind me and I needed to put on the hazard blinkers and crawl to the next turn out.

I waited on side of road while the engine continued to run (but seemingly not at full load). I did not know how long to wait. After 3-5 minutes, I attempted to merge back into traffic (I was still on an uphill section). The car initially had good power, accelerated to ~40MPH, then crapped out and fell back to 25MPH. I crawled to next turnout and waited 10 mins. That was enough to get me over the next hill and get me on my way.

This wasn't just annoying. It was dangerous...
http://www.mybmwi3.com/forum/viewtopic.php?f=13&t=1366" onclick="window.open(this.href);return false;

But one of the replies to his post (if correct) may help explain his unfortunate experience:
...In the BMW University W20 Engine document there is a graph on page 56 illustrating engine RPM as a function of speed. For noise reasons the engine only operates at high RPM at higher speed. It reduces the REX engine RPM at lower speeds even for a depleted battery. According to the graph at 0.7% battery the REX maximum speed of 4300 RPM is reduced below 70 km/h down to an idle of 2400 RPM at about 18 km/h.

It seems to me that this could lead to a negative feedback situation. If the hill was steep enough the the REX at 4400 RPM couldn't sustain a speed of 70 km/h (43.5 mph) it would have to slow down at some point. Once the i3 started slowing below 70 km/h the REX would reduce in RPM to avoid excessive noise at low speeds. Less RPM means less power generated which means even less speed so the RPM is reduced even further.

Then according to the chart when you are stopped the REX will at best idle at 2400 RPM and I think it shuts down when the SOC reaches 3.5%...
http://www.mybmwi3.com/forum/viewtopic. ... 6&start=10" onclick="window.open(this.href);return false;
no condition is permanent

pkulak
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Re: Official BMW i3 thread

Thu Aug 14, 2014 10:46 pm

Wow. And it would all be solved if you could just turn the damn engine on yourself. That chap with the mountain to climb could just turn on the generator 10 miles from his house and the whole trip would have been a non event. I still think a tiny engine generator is a great idea, but only with an on button and a large tank.

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TomT
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Re: Official BMW i3 thread

Thu Aug 14, 2014 11:17 pm

All this crap and they didn't get a white sticker anyway! Just make it like a Volt (or even the EU i3) - albeit with much less performance - and be done with it!
pkulak wrote:Wow. And it would all be solved if you could just turn the damn engine on yourself. That chap with the mountain to climb could just turn on the generator 10 miles from his house and the whole trip would have been a non event. I still think a tiny engine generator is a great idea, but only with an on button and a large tank.
Leaf SL 2011 to 2016, Volt Premier 2016 to 2019, and now:
2019 Model 3; LR, RWD, FSD, 19" Sport Wheels, silver/black; built 3/17/19, delivered 3/29/19.

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evnow
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Re: Official BMW i3 thread

Fri Aug 15, 2014 12:32 am

TomT wrote:All this crap and they didn't get a white sticker anyway!
It was done to get gold credits- not some stickers.
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