Fendt 300 Vario COM3

Differential fluid capacity & service interval

Fendt 300 Vario COM3 differential fluid capacity is 7 liters. Service intervals include checking at 500 hours and changing at 1000 hours or 12 months. The data covers 4 configurations.

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

TypeSpecifications
  • 309 Vario (2007-2011)
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 500 hours
  • Change 1000 hours/ 12 months
  • 310 Vario (2007-2011)
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 500 hours
  • Change 1000 hours/ 12 months
  • 311 Vario (2007-2011)
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 500 hours
  • Change 1000 hours/ 12 months
  • 312 Vario (2007-2011)
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 500 hours
  • Change 1000 hours/ 12 months

Additional Notes

  • The Fendt 300 Vario COM3 front differential holds 7 liters across all four variants in the 309-312 Vario range for the 2007-2011 model years.
  • A 7-liter front differential capacity is a moderate fill volume for a tractor axle housing, consistent with a compact-to-mid-range front axle assembly rather than a heavy-duty agricultural drivetrain.
  • The 309, 310, 311, and 312 Vario all share an identical front differential capacity of 7 liters, indicating no variation in axle hardware across the power variants within the COM3 series for those years.
  • Under normal use conditions, the front differential fluid check interval is set at 500 hours for all four variants.
  • The fluid change interval under normal use is 1,000 hours or 12 months, whichever comes first, applying uniformly to the 309, 310, 311, and 312 Vario.
  • The dual-trigger change interval of 1,000 hours or 12 months means calendar time can mandate a fluid change before the hour threshold is reached, which is relevant for machines operating at lower annual utilization rates.
  • The check interval at 500 hours falls at exactly the halfway point of the 1,000-hour change interval, structuring a mid-cycle inspection before the full drain and refill is due.

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