12-8000 Adapter
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.
0491200 128000 Adapter MW
NOTE:
(Test adapter, 56-pin) For checking the engine wiring harness on compressed natural gas vehicles [Discontinued]
Storage Location
W 2..
SI number
01 14 95 (014)
Courtesy of BMW OF NORTH AMERICA, INC.