Steyr Multitrac/Kommunal 900

Coolant capacity & service interval

Steyr Multitrac/Kommunal 900 coolant capacity ranges from 11,5 to 13 liters. Service intervals include checks every 250 hours and changes every 1000 hours or 24 months. The data covers 6 configurations.

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

TypeSpecifications
Multitrac M952 (1998- )
  • Use: Normal
  • Capacity 12 liter
  • Capacity 13 liter (+ heater)
  • Check 250 hours
  • Change 1000 hours/ 24 months
Multitrac M963 (1998- )
  • Use: Normal
  • Capacity 12 liter
  • Check 250 hours
  • Change 1000 hours/ 24 months
Multitrac/Kommunal M952a, KM952a (1998- )
  • Use: Normal
  • Capacity 12 liter
  • Check 250 hours
  • Change 1000 hours/ 24 months
Multitrac/Kommunal M963a, KM963a (1998- )
  • Use: Normal
  • Capacity 12 liter
  • Check 250 hours
  • Change 1000 hours/ 24 months
Multitrac/Kommunal M968, M968a, KM968a (1998- )
  • Use: Normal
  • Capacity 11,5 liter
  • Capacity 12,5 liter (+ heater)
  • Check 250 hours
  • Change 1000 hours/ 24 months
Multitrac/Kommunal M975a, KM975a (1998- )
  • Use: Normal
  • Capacity 11,5 liter
  • Check 250 hours
  • Change 1000 hours/ 24 months

Additional Notes

  • The Steyr Multitrac M952 cooling system holds 12 liters as a base capacity, rising to 13 liters when the optional heater circuit is included. The M968, M968a, and KM968a variants follow the same pattern at a lower base volume, with 11.5 liters standard and 12.5 liters with the heater fitted.
  • The 1-liter increase associated with the heater option on the M952 and M968 variants reflects the additional fluid volume held within the heater core and its connecting hoses, which form part of the closed cooling circuit.
  • The M963, M952a/KM952a, M963a/KM963a, and M975a/KM975a variants each carry a fixed 12-liter or 11.5-liter capacity with no heater-related alternative listed, meaning a single capacity figure applies regardless of cab configuration.
  • All six configurations share an identical service interval structure: a coolant level check at every 250 hours and a full coolant change at 1,000 hours or 24 months, whichever comes first. The dual-trigger change interval means calendar time can mandate a change before the hour threshold is reached on lower-utilization machines.
  • The 250-hour check interval is notably more frequent than the 1,000-hour change interval, reflecting standard practice for coolant maintenance where concentration and contamination are monitored well before a full drain is required.
  • All specifications across the M952, M963, M952a/KM952a, M963a/KM963a, M968/M968a/KM968a, and M975a/KM975a are classified under normal use conditions, meaning no separate severe-duty interval is listed for any of these cooling system entries.
  • The M975a and KM975a share the same 11.5-liter base capacity as the M968 group, while the M952, M963, M952a, and M963a group all share the 12-liter base figure, indicating a capacity difference between these two groups of variants.

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