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Front suspension, drive shafts > < Checking shock absorber following removal
Running gear, Front-wheel drive and four-wheel drive
Checking shock absorbers
Checking shock absorber on shock tester

A shock tester (shock absorber tester) enables shock absorbers to be checked without removing them. The damping effect can be assessed on the basis of the pointer deflection/printout.

Special tools and workshop equipment required

  • ◆ Boge shock tester

Or

  • ◆ Sachs shock tester V.A.G 1975

Or

  • ◆ Maha shock absorber tester VAS 1990

Test requirements:

  • ● Temperature +10 ... +40 ° C
  • ● Driver in vehicle
  • ● Inflation pressure OK
  • ● Vehicle standing centrally aligned and straight on wheel contact plates
  • ● Front wheels straight ahead
  • ● Handbrake not applied; foot brake not pressed

Limit values

The condition of the shock absorber can only be assessed as follows:

  • ◆ Adequate damping effect

Or

  • ◆ Inadequate damping effect

Notes:

  • ◆ Intermediate readings for reduced damping performance are not possible.
  • ◆ Service life forecasts are not permitted.
  • ◆ Measured values which include the influence of the spring travel end stops will be biased.

The following values only apply to the above-mentioned test benches. If the stated values are exceeded, less than 50% of shock absorber performance is being obtained and replacement is justified.

 
V40-0695

→ 1.6 l Front-wheel drive

Front axle

Damping effect

Inadequate

Adequate

Standard running gear

a = Greater than 60

a = Less
than 60

Sports running gear

a = Greater than 42

a = Less
than 42

Heavy-duty running gear

a = Greater than 48

a = Less
than 48

Rear axle

Standard running gear

a = Greater than 75

a = Less
than 75

Sports running gear

a = Greater than 68

a = Less
than 68

Heavy-duty running gear

a = Greater than 68

a = Less
than 68

 
V40-0695

→ 1.8/1.9 l Front-wheel drive

Front axle

Damping effect

Inadequate

Adequate

Standard running gear

a = Greater than 60

a = Less
than 60

Sports running gear

a = Greater than 42

a = Less
than 42

Heavy-duty running gear

a = Greater than 48

a = Less
than 48

Rear axle

Standard running gear

a = Greater than 74

a = Less
than 74

Sports running gear

a = Greater than 68

a = Less
than 68

Heavy-duty running gear

a = Greater than 68

a = Less
than 68

 
V40-0695

→ 1.8/1.9 l Four-wheel drive

Front axle

Damping effect

Inadequate

Adequate

Standard running gear

a = Greater than 58

a = Less
than 58

Sports running gear

a = Greater than 42

a = Less
than 42

Heavy-duty running gear

a = Greater than 50

a = Less
than 50

Rear axle

Standard running gear

a = Greater than 70

a = Less
than 70

Sports running gear

a = Greater than 60

a = Less
than 60

Heavy-duty running gear

a = Greater than 64

a = Less
than 64

Audi S3

Damping effect

Inadequate

Adequate

Front axle

a = Greater than 49

a = Less
than 49

Rear axle

a = Greater than 50

a = Less
than 50

Front suspension, drive shafts > < Checking shock absorber following removal