13-3000 Gauge
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.
0491255 133000 Gauge MW
NOTE:
(Setting gauge) For pre-tensioning the electric fuel pump with interchangeable diaphragm - Until January 84 [Discontinued]