Maserati Quattroporte III, AM 330

Power steering fluid capacity & service interval

Maserati Quattroporte III, AM 330 requires power steering fluid with a capacity of 2 liters. Service intervals include checking at 5000 km and changing at 20000 km. The data covers 2 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Quattroporte 4200 (1979-1983)
  • Use: Normal
  • Capacity 2 liter
  • Check 5000 km
  • Change 20000 km
Quattroporte 4900 (1979-1986)
  • Use: Normal
  • Capacity 2 liter
  • Check 5000 km
  • Change 20000 km

Additional Notes

  • The Maserati Quattroporte III, AM 330 power steering system holds a capacity of 2 liters across both the 4200 and 4900 engine variants, indicating a full reservoir and circuit service fill volume rather than a partial top-up quantity.
  • The 4200 variant, covering model years 1979-1983, shares an identical capacity and service schedule with the 4900 variant, which spans 1979-1986, despite the difference in engine displacement between the two configurations.
  • A check interval of 5,000 km applies to the power steering fluid under normal use conditions for both variants, reflecting a relatively frequent inspection cadence relative to the change interval.
  • The fluid change interval is set at 20,000 km under normal use conditions for both the 4200 and 4900 variants, placing the change at every fourth check point in the 5,000 km inspection cycle.
  • Both rows are designated for normal use conditions, meaning the 5,000 km check and 20,000 km change intervals are not adjusted for severe operating environments in the available specifications.

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