A drop in performance of shock absorbers harbors many risks for drivers. The workshop professional knows when replacement is necessary and only uses original spare parts. For safety reasons.
Inspection campaigns have confirmed that approx. 14 percent of vehicles tested have got at least one defective shock absorber. For vehicles with worn or defective shock absorbers, several risks are run at once: The stopping distance becomes longer, because the car's road contact is no longer optimally ensured. Many electronic driver assistance systems - such as the electronic stability program, ESP, ABS, or traction control - require good road contact of the vehicle to be able to develop their full potential. This therefore means: The more electronic safety systems are installed in the car, the more important is the full performance of the shock absorbers.
The stopping distance can increase by up to 14 percent or five and a half meters if you brake at full power from a speed of 100 km/h with shock absorbers which perform only half of their original function.
When braking down from 50 km/h, this can mean that the distance between the vehicle and the obstacle and thus the separation from a possible accident is already three and a half meters shorter.
Drivers do not notice wear of their shock absorbers - and therefore depend on the professional advice from their workshop.
If the shock absorbers 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 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.
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