Innocenti A40

Power steering fluid capacity & service interval

Innocenti A40 requires power steering fluid with a capacity of 0,15 liter. Service intervals consist of a check every 20000 km. The data covers 2 configurations.

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

TypeSpecifications
A40S (1962-1967)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 20000 km
A40 (1959-1961)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 20000 km

Additional Notes

  • The Innocenti A40 uses a steering box rather than a rack-and-pinion or hydraulic pump arrangement, which means the fluid volume involved is quite small. Both the A40 (1959-1961) and the A40S (1962-1967) share an identical capacity of 0.15 liter.
  • A capacity of 0.15 liter is characteristic of a steering box lubrication fill, where the enclosed gear mechanism requires only a modest amount of fluid to maintain adequate lubrication of the worm gear and sector shaft components.
  • The check interval for both variants is set at 20,000 km under normal use conditions, meaning the steering box fluid level is inspected at that mileage point rather than drained and replaced on a fixed schedule.
  • The A40 (1959-1961) and the A40S (1962-1967) carry identical specifications across capacity and check interval, indicating no change in the steering box design or its lubrication requirements between the two model designations.

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