BMW recall notice posted on NHTSA.
There are several ways to approach posting on a vehicle recall, but we think it most useful to provide information directly from the source. In this way, nothing is lost in translation.
What you see here (above) is a recall notice issued by the National Highway Traffic Safety Administration for the 2011 BMW ActiveE.
This recall involves approximately 360 of the 700 ActiveE vehicles on US roads. The issue is described in detail both above and below, so if you're an ActiveE lessee, or simply interested in what's wrong, then be sure to read all three notices.
This notice (above) is self explanatory. The only info worth pointing out is that BMW will install an "improved seal" after the other work is completed.
Additional dealer notice.
Here's where it gets a bit more interesting. Since the ActiveE is a limited production vehicle, parts seem to be nearly non-existent. Note the mention of "limited availability of parts" and the mention of "higher-priority" versus "lower-priority" vehicles. Additionally, there's a chance that the entire electric motor will be replaced. That's not mentioned in the official NHTSA recall notice. Down time seems to be rather lengthy too, as even BMW openly states "extensive repair time."
Additional bulletins and notice can be found by following this link to the NHTSA's website.
And here's a link to a detailed PDF that explains exactly how and when BMW first became aware of the issue and the actions the automaker took to try to evaluate, diagnose and remedy the problem.