1. ZF Services TFQ-1 CDC, 11.03.2009 Double-tube shock absorber upper mounting piston rod seal piston rod guide air piston rod oil reservoir protective tube outer tube working cylinder piston valve base valve ExpansionCompression

2. ZF Services TFQ-1 CDC, 11.03.2009 Expansion Cpmpression Double-tube shock absorber

3. ZF Services TFQ-1 CDC, 11.03.2009 Mono-tube shock absorber (gas) upper mounting piston rod guide piston rod seal piston rod protective tube piston valve working cylinder separator piston gas (nitrogen) ExpansionCompression

4. ZF Services TFQ-1 CDC, 11.03.2009 Expansion Cpmpression Mono-tube shock absorber (gas)

5. ZF Services TFQ-1 CDC, 11.03.2009 High Tech SACHS Shock absorbers and modules Vario CDC

6. ZF Services TFQ-1 CDC, 11.03.2009 Piston rod guide and seal Protective tube Piston rod Piston valve Working cylinder Separator piston Gas (nitrogen) Lower mounting control groove Shock absorber VARIO (mono-tube)

7. ZF Services TFQ-1 CDC, 11.03.2009 F v F v Transition F v Principle of control groove / bypass

8. ZF Services TFQ-1 CDC, 11.03.2009 vehicle loaded fully damping vehicle unloaded reduced damping Shock absorber VARIO / control groove

9. ZF Services TFQ-1 CDC, 11.03.2009 proportional damping valve internal external CDC Continuous-Damping- Control Shock absorbers - CDC

10. ZF Services TFQ-1 CDC, 11.03.2009 Functional principle of CDC – Continuous Damping Control The power affects the position of the magnet slider The position of the magnet slider affects the oil flow Proportional damping valve PHT