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37... Overview of 2-axle ride-height control

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.
Fig 1: Overview Of 2-Axle Ride-Height Control
G08475883Courtesy of BMW OF NORTH AMERICA, INC.

Safety instructions and general information

Deactivate/activate air spring system

Bleed/fill pressure accumulator

Carry out ride height adjustment