Operation CHARM: Car repair manuals for everyone.

Shock Absorbers, Checking When Removed






Shock Absorbers, Checking when Removed

Defective shock absorbers are noticeable when driving due to loud rumbling noises - a result of wheel hopping - especially on poor stretches of road. Moreover, they can be recognized by a large loss of oil.

Shock absorbers are maintenance-free, shock absorber oil cannot be topped off.

A removed shock absorber can be checked by hand as follows:

- Press the shock absorber together by hand.

Piston rods must move smoothly and with uniform difficulty over the entire range

- Release piston rods.

On shock absorbers with sufficient gas pressure, piston rods return to initial position by themselves.

If this is not the case, shock absorber must be replaced. As long as there is no large loss of oil, the mode of operation corresponds to that of a conventional shock absorber.

The damping function is also completely available without gas pressure, as long as there is no large loss of oil. However, noise may increase.