Fendt 900 Vario MT Gen3, T-T9C

AdBlue (DEF) capacity & service interval

Fendt 900 Vario MT Gen3 and T-T9C models utilize AdBlue (DEF) with a capacity of 71 liters. The data covers 3 configurations.

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

TypeSpecifications
938 Vario MT, T-T9CA (2022- )
  • Use: Normal
  • Capacity 71 liter
940 Vario MT, T-T9CC (2022- )
  • Use: Normal
  • Capacity 71 liter
943 Vario MT, T-T9CE (2022- )
  • Use: Normal
  • Capacity 71 liter

Additional Notes

  • The Fendt 900 Vario MT Gen3 AdBlue system is associated with a selective catalytic reduction (SCR) setup, which is an emissions control technology that injects a urea-based fluid into the exhaust stream to reduce nitrogen oxide output.
  • All three listed variants — the 938 Vario MT (T-T9CA), 940 Vario MT (T-T9CC), and 943 Vario MT (T-T9CE) — share an identical AdBlue tank capacity of 71 liters.
  • A 71-liter AdBlue capacity is notably large relative to many agricultural machines, reflecting the high-output engine demands typical of tracked tractor platforms in this class.
  • The 71-liter figure represents a service fill capacity, meaning the volume used when topping up or refilling the tank during normal operation rather than a full system overhaul measurement.
  • All three configurations carry a Normal use condition designation, meaning the 71-liter capacity specification applies under standard operating conditions rather than severe or first-change-only scenarios.
  • The specifications for the 938, 940, and 943 variants each share a 2022 starting year, with all three carrying the same capacity value from that point forward across their respective engine designations.

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