This is an original WABCO air suspension compressor, which supplies pressurized air to the vehicle's self-leveling air suspension system. This compressor is a common failure point on affected BMWs, with worn internal components or a failing valve block typically causing suspension warning lights, uneven ride height, or a complete loss of self-leveling function.

Fitment: BMW 7-Series (F01, F02) equipped with the optional air suspension system, across all engine options; the same compressor is also used on related F07/F11 5-Series air suspension applications.