FWIW, the arm was intact. It was just the rubber piece that was hanging off. Anyway, the matter is handled. Thanks to all who contributed.
2011 X5 SAV titanium silver/black/aluminum
2013 Subaru Impreza graphite gray/black replaced the 335
RIP 335i xdrive DSB/gray
RIP 2005 Subaru Legacy GT
RIP 1986 Honda Accord (involved in three car accident while pahked in the North End)
RIP 2002 Mini Cooper (90th produced)