Purpose Of The System

The single axle air suspension system used on the E65/E66 is a further enhancement of the previous single axle air suspension system used on the E39 and X5. The components used are similar to the Single Axle EHC System on the E53. The E65/E66 Air suspension consists of the following components:

• Air Supply System (LVA)
• Control Unit (EHC)
• Two Air Springs
• Two Ride Height Sensors
• CC Display/Telltale Icon
  Fig 1: Identifying Single Axle Air Suspension

  Courtesy of BMW OF NORTH AMERICA, INC.
  Fig 2: Identifying Two Ride Height Sensors

  Courtesy of BMW OF NORTH AMERICA, INC.
  Fig 3: Single Axle Air Suspension System Bus

  Courtesy of BMW OF NORTH AMERICA, INC.