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SACHS useful tip:

Regularly inspect shocks and dampers.

A drop in performance of shock absorbers/dampers harbors many risks for drivers. The workshop professional knows when replacement is necessary and only uses genuine spare parts. For safety reasons.

A drop in performance of shock absorbers/dampers harbors many risks for drivers. The workshop professional knows when replacement is necessary and only uses genuine spare parts. For safety reasons.

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Risk of shock absorber/damper comparison

New inspection campaigns have shown that approx. one in seven tested vehicles has got at least one defective shock absorber. For vehicles with either worn or defective shock absorbers, or with an electronically adjustable chassis, several risks run at once: The stopping distance becomes longer because the car's road contact is no longer optimally ensured. Many electronic advanced driver assistance systems – such as the ESP electronic stability program, ABS or traction control – require good contact of the wheels with the road to be able to develop their full potential. This therefore means that the more electronic safety systems are installed in the car, the more important is the full performance of the shock absorbers/dampers.

Risk of shock absorber/damper comparison

New inspection campaigns have shown that approx. one in seven tested vehicles has got at least one defective shock absorber. For vehicles with either worn or defective shock absorbers, or with an electronically adjustable chassis, several risks run at once: The stopping distance becomes longer because the car's road contact is no longer optimally ensured. Many electronic advanced driver assistance systems – such as the ESP electronic stability program, ABS or traction control – require good contact of the wheels with the road to be able to develop their full potential. This therefore means that the more electronic safety systems are installed in the car, the more important is the full performance of the shock absorbers/dampers.

Dangers of extended stopping

Short stopping distances are only possible with functional shocks or dampers. Defective shocks or dampers reduce the brake force due to insufficient traction. The stopping distance increases by up to 20% – depending on speed, vehicle systems and road surface. This can be as high as 6 meters for speeds up to 80 km/h – way too long when every meter counts.

Dangers of extended stopping

Short stopping distances are only possible with functional shocks or dampers. Defective shocks or dampers reduce the brake force due to insufficient traction. The stopping distance increases by up to 20% – depending on speed, vehicle systems and road surface. This can be as high as 6 meters for speeds up to 80 km/h – way too long when every meter counts.

Drivers do not notice wear of their shocks or dampers – and therefore depend on the professional advice from their workshop.
Shock absorber test

Consequences of shock absorber/damper wear

If the shock absorbers/dampers no longer prevent the car body from pitching and vibrating, then it is more difficult to control the vehicle during evasive maneuvers. Its cornering ability generally becomes unstable; the cars are also more prone to aquaplaning. In addition, the shock absorber/damper wear has a negative impact in other areas: Tires and chassis components, such as tie rod ends or steering devices, in turn are exposed to greater wear.

An oil leak is a clear indication of a defective shock or damper. However, the shock absorber/damper may be defective, even if no oil spills are visible. A professional inspection at a specialized workshop is therefore essential.

Drivers do not notice wear of their shocks or dampers – and therefore depend on the professional advice from their workshop.
Shock absorber test

Consequences of shock absorber/damper wear

If the shock absorbers/dampers no longer prevent the car body from pitching and vibrating, then it is more difficult to control the vehicle during evasive maneuvers. Its cornering ability generally becomes unstable; the cars are also more prone to aquaplaning. In addition, the shock absorber/damper wear has a negative impact in other areas: Tires and chassis components, such as tie rod ends or steering devices, in turn are exposed to greater wear.

An oil leak is a clear indication of a defective shock or damper. However, the shock absorber/damper may be defective, even if no oil spills are visible. A professional inspection at a specialized workshop is therefore essential.

Further information