New Holland TC

AdBlue (DEF) capacity & service interval

The New Holland TC model uses AdBlue (DEF) fluid with a capacity of 70 liters. The data covers 4 configurations of this model.

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

The New Holland TC series AdBlue (DEF) tank capacity is 70 liters across all four configurations covered — the TC4.90, TC5.70, TC5.80, and TC5.90 — for the 2014-2017 model years.
A 70-liter DEF tank is a relatively large reservoir by agricultural equipment standards, reflecting the sustained field operation cycles typical of combine harvesters, where frequent refilling would interrupt workflow.
All four configurations apply the 70-liter capacity under normal use conditions, meaning the figure represents standard operating fill rather than a maximum overhaul or system-flush volume.
The TC4.90 carries serial number designation S/N 9798 onward, while the TC5.80 and TC5.90 share a higher starting serial number of S/N 9820 onward, indicating a distinct production break between the two model groupings.
The TC5.70 shares the S/N 9798 starting point with the TC4.90, placing both within the same production sequence origin despite differing engine designations.
DEF is consumed by the selective catalytic reduction system noted across all four rows. In SCR systems, DEF is injected into the exhaust stream to reduce nitrogen oxide emissions, and tank capacity directly determines how long the machine can operate before a DEF refill is required.
The identical 70-liter capacity across the TC4.90, TC5.70, TC5.80, and TC5.90 suggests a shared tank design was used regardless of engine output differences implied by the model numbering.