Checking on Shock Tester

Shock absorbers, testing on shock tester
Shock absorbers can be tested while still installed in vehicle via the shock tester (shock absorber test tool).. The damping capacity can be assessed on the basis of the pointer or the print-out.

Special tools and workshop equipment required
^ Boge shock tester
or
^ Sachs shock tester V.A.G1975
or
^ Maha shock absorber tester VAS 1990

Note:
^ Temperature +10° to +40°C
^ Driver in vehicle.
^ Tire pressure OK.
^ Vehicle driven onto center of wheel plates in straight-ahead position.
^ Front wheels in straight-ahead position.
^ Parking brake not applied, brake pedal not depressed.

Test results
Shock absorbers can only be evaluated as follows:
^ Damping effect satisfactory
or
^ Damping effect unsatisfactory

Note:
^ Intermediate values for a reduced damping power cannot be read out.
^ Predicting service life is not permitted.
^ Measured values that involved a contribution of force by spring range end stop, are false.

The following values are valid only for the above mentioned test stands. If the specified values are exceeded, the shock absorber has been weakened by more than 50% - replacement is justified.

Front axle, TT Coupe with Front Wheel Drive (FWD):





^ a = higher than 50: Damping effect unsatisfactory
^ a = lower than 50: Damping effect satisfactory

Rear axle, TT Coupe with Front Wheel Drive (FWD):
^ a = higher than 54: Damping effect unsatisfactory
^ a = lower than 54: Damping effect satisfactory

Front axle, TT Coupe with All Wheel Drive (AWD):
^ a = higher than 49: Damping effect unsatisfactory
^ a = lower than 49: Damping effect satisfactory

Rear axle, TT Coupe with All Wheel Drive (AWD):
^ a = higher than 50: Damping effect unsatisfactory
^ a = lower than 50: Damping effect satisfactory

Front axle, TT Roadster with Front Wheel Drive (FWD):
^ a = higher than 50: Damping effect unsatisfactory
^ a = lower than 50: Damping effect satisfactory

Rear axle, TT Roadster with Front Wheel Drive (FWD):
^ a = higher than 54: Damping effect unsatisfactory
^ a = lower than 54: Damping effect satisfactory

Front axle, TT Roadster with All Wheel Drive (AWD):
^ a = higher than 50: Damping effect unsatisfactory
^ a = lower than 50: Damping effect satisfactory

Rear axle, TT Roadster with All Wheel Drive (AWD):
^ a = higher than 50: Damping effect unsatisfactory
^ a = lower than 50: Damping effect satisfactory