SSP 018 – Level Control System in the Audi 100

Why level control on the rear axle?
With the help of the rear axle level control system, the rear of the vehicle always maintains the same ride height up to the maximum permissible load.

This means:

• Full suspension travel at the rear axle is maintained

• No reduction in ground clearance

• No deterioration in steering or handling

• Headlights always remain in the normal position

• Increased ride comfort due to softer basic rear suspension

Introduction to the system

• Level control with hydropneumatic suspension

• Oil circuit (general)

• Function of the components

  • High-pressure oil pump

  • Oil reservoir

  • Level control valve

  • Accumulator (spring accumulator)

  • Suspension cylinder

• Oil circuit:

  • In level position without load

  • During loading

  • In level position with load

  • During unloading