Shock Absorber Leaks

Shock absorbers are frequently rejected and replaced because of leaks. Examinations on the test stand and on the vehicle have shown that the replacement of a large number of rejected shock absorbers was not justified.

Slight leaking of oil ("sweating") at piston rod seal is no reason to replace a shock absorber. A shock absorber damp with oil is OK under the following circumstances:

• Oil leakage (shaded in illustration) is visible, but dull, matte and possibly dry due to dust.

  Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

• Oil excretion extends from upper shock absorber connection (piston rod seal) no further than lower spring plate -arrow-.