BMW looking to fix i3 acceleration problem uncovered by Consumer Reports
 

<p>Filed under: <a href="http://www.autoblog.com/category/hybrids/" rel="tag">Hybrid</a>, <a href="http://www.autoblog.com/category/safety/" rel="tag">Safety</a>, <a href="http://www.autoblog.com/category/tech/" rel="tag">Technology</a>, <a href="http://www.autoblog.com/category/hatchbacks/" rel="tag">Hatchback</a>, <a href="http://www.autoblog.com/bmw/" rel="tag">BMW</a>, <a href="http://www.autoblog.com/category/electric/" rel="tag">Electric</a></p><a href="http://www.autoblog.com/photos/2014-bmw-i3-first-drive-0/"><img alt="BMW i3" data-caption="OLYMPUS DIGITAL CAMERA " data-credit="AOL" data-credit-link-back="undefined" data-mep="502229" src="http://o.aolcdn.com/dims-shared/dims3/GLOB/crop/1279x849+0+0/resize/628x417!/format/jpg/quality/85/http://o.aolcdn.com/hss/storage/midas/3e9fe10ed7bf1cad3d44dcb1a 4112891/200901663/01-2014-bmw-i3-fd-1.jpg" /></a><br />
<br />
The <a href="http://www.autoblog.com/bmw/i3/">BMW i3</a> has been hailed in some quarters as the future of electric mobility, what with its innovative carbon-fiber-reinforced plastic body and commitment to sustainable materials wherever possible. The modernist little hatch is even available with a <a href="http://green.autoblog.com/2013/10/10/bmw-prices-i3-range-extender-option-at-3950/">650cc two-cylinder gas engine with 34 horsepower</a> to act as a range-extender for those who want it. However, that optional engine might have a drawback - at least for the moment.<br />
<br />
<em>Consumer Reports </em><a href="http://www.consumerreports.org/cro/news/2014/10/bmw-i3-has-the-little-engine-that-could/index.htm">brought the problem to light</a> when one of its drivers was behind the wheel of an i3 using the range-extender. When the driver attempted to pass another vehicle on a rolling, two-lane road, the <a href="http://www.autoblog.com/bmw/">BMW</a> suddenly had no power to accelerate - a scary situation. CR started examining the car and found something pretty shocking: After driving at a constant speed for a while without any regenerative braking in range-extended mode, acceleration to 60 miles per hour plummeted from about 9 seconds normally to a staggering 27 to 40 seconds in their testing.<br />
<br />
A BMW spokesperson told CR that it knows about the problem and has a fix coming next spring that also works on current models. The upgrade includes a state of charge indicator, a warning about loss of power and uses the car's navigation to boost the battery before driving on rolling terrain. It is not clear if the severe power deficiency will also eventually result in a recall.<br />
<br />
The issue is bad news for the i3 <a href="http://green.autoblog.com/2014/10/09/bmw-ready-to-bring-more-i3-i8-plug-ins-to-us/">that is already proving quite popular</a>, with a reported <a href="http://green.autoblog.com/2014/02/04/bmw-i3-wait-list-six-months/">six-month waiting list</a> to get one. However, the range-extended model already had a small hiccup in the US when BMW <a href="http://green.autoblog.com/2014/05/20/all-us-bound-bmw-i3-evs-with-range-extenders-stuck-at-port/">had to hold them at port until the EPA certified the fuel economy</a> for the variant. <a href="http://green.autoblog.com/2014/05/22/bmw-i3-rex-rated-117-mpge-39-mpg-with-72-mile-ev-range/">It was eventually rated at</a> 117 mpge with an estimated total range of 150 miles - 72 miles on electric power and another 78 miles with the range-extender running.<p style="padding:5px;backgr ound:#ddd;border:1px solid #ccc;clear:both;"><a href="http://www.autoblog.com/2014/10/10/bmw-i3-acceleration-problem-consumer-reports/">BMW looking to fix i3 acceleration problem uncovered by Consumer Reports</a> originally appeared on <a href="http://www.autoblog.com">Autoblo g</a> on Fri, 10 Oct 2014 14:30:00 EST. Please see our <a href="/rss-term-of-use/">terms for use of feeds</a>.</p><h6 style="clear: both; padding: 8px 0 0 0; height: 2px; font-size: 1px; border: 0; margin: 0; padding: 0;"></h6><a href="http://www.autoblog.com/2014/10/10/bmw-i3-acceleration-problem-consumer-reports/" rel="bookmark" title="Permanent link to this entry">Permalink</a>&nbsp;|&nbsp;<a href="http://www.autoblog.com/forward/20975996/" title="Send this entry to a friend via email">Email this</a>&nbsp;|&nbsp;<a href="http://www.autoblog.com/2014/10/10/bmw-i3-acceleration-problem-consumer-reports/#comments" title="View reader comments on this entry">Comments</a>

أكثر...