audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Checking shock absorbers when removed > < Checking shock absorbers
Leaks at shock absorbers
Leaks at shock absorbers
Shock absorbers are often replaced because of externally visible leakage. Inspections on the test rig and in the vehicle have shown that in the majority of cases this replacement is not justified.
Slight loss of fluid („sweating“) at the piston rod seal is not a reason for replacing a shock absorber. A shock absorber with slight fluid leakage can be accepted as "OK" under the following conditions:
   
t  Fluid seepage (as shown in the shaded part of the illustration) is visible, but the fluid is dull and possibly dried by dust
t  The fluid seepage extends only from the top shock absorber seal (piston rod seal) down to the bottom spring plate -arrow-.
  V40-1334

Checking shock absorbers when removed > < Checking shock absorbers