37 00... Checking air springs for damage

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. 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.