37 00... Checking air springs for damage

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.

NOTE: If a vehicle has been driven with depressurized air springs, the air springs must always be replaced.

Raise vehicle.

Air spring is OK

when the rubber boot cannot be pressed in by hand
when no visible damage (e.g. kinks, cracks, porous areas, etc.) is discernible
when the rolling fold is uniform

Fig 1: Identifying Air Spring

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: If one of the above-mentioned points fails the test, then the AIR SPRING must be replaced.