Steyr Multitrac/Kommunal 9000

Brake fluid capacity & service interval

Steyr Multitrac/Kommunal 9000 uses brake fluid with a capacity of 0,4 liter. Service intervals include checks at 250 hours and changes at 2000 hours or 24 months. The data covers 4 configurations.

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

TypeSpecifications
Multitrac M9078 (2001- )
  • Use: Normal
  • Capacity 0,4 liter
  • Check 250 hours
  • Change 2000 hours/ 24 months
Multitrac/Kommunal M9078a, KM9078a (2001- )
  • Use: Normal
  • Capacity 0,4 liter
  • Check 250 hours
  • Change 2000 hours/ 24 months
Multitrac/Kommunal M9086a, KM9086a (2001- )
  • Use: Normal
  • Capacity 0,4 liter
  • Check 250 hours
  • Change 2000 hours/ 24 months
Multitrac/Kommunal M9094a, KM9094a (2001- )
  • Use: Normal
  • Capacity 0,4 liter
  • Check 250 hours
  • Change 2000 hours/ 24 months

Additional Notes

  • The hydraulic brake system capacity across all four Steyr Multitrac/Kommunal 9000 variants — M9078, M9078a/KM9078a, M9086a/KM9086a, and M9094a/KM9094a — is 0.4 liter, a figure consistent with a compact reservoir serving a dedicated brake circuit rather than a shared hydraulic system.
  • A check interval of 250 hours applies to the hydraulic brake system on all listed variants under normal use conditions, reflecting a relatively frequent inspection cycle suited to working machinery that accumulates hours rapidly in field or municipal operations.
  • The change interval is specified as 2000 hours or 24 months, whichever comes first, meaning time elapsed can trigger a fluid change even when the hour threshold has not been reached — a dual-condition structure common in brake fluid servicing due to moisture absorption over time.
  • All four variants share identical capacity, check, and change specifications, indicating no differentiation in brake system design between the standard Multitrac designation and the Kommunal variants at the M9078a, M9086a, and M9094a levels.
  • The 24-month calendar limit on brake fluid changes places a hard ceiling on service life regardless of operational intensity, which aligns with the hygroscopic nature of brake fluid and the degradation of its boiling point over time as moisture accumulates.
  • The M9078 is listed separately from the M9078a and KM9078a, yet all three carry the same 0.4-liter capacity and identical service intervals, suggesting the hydraulic brake circuit was carried over without modification between those variants starting from 2001.

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