Steyr 4100/6100 Profi/Profi Classic

Additional Notes

• The Steyr 4100/6100 Profi/Profi Classic AdBlue tank capacity is 39.5 liters across all listed configurations, covering the 4115, 4125, 4135, 4145, and 6145 variants in both Profi CVT and Profi Classic body styles from 2016.
• AdBlue, also known as Diesel Exhaust Fluid (DEF), is a urea-water solution injected into the exhaust stream of a selective catalytic reduction (SCR) system to convert nitrogen oxides (NOx) into nitrogen and water vapor, reducing harmful emissions.
• All nine listed configurations carry the SCR system notation, meaning the 39.5-liter capacity figure applies specifically to the AdBlue reservoir that feeds the catalytic reduction process rather than to any fuel or engine fluid circuit.
• A 39.5-liter AdBlue tank is a relatively large reservoir for agricultural tractors, reflecting the extended field operation cycles typical of machines in the 4100 and 6100 series, where frequent refilling would interrupt work.
• The capacity value of 39.5 liters is uniform across both the CVT (continuously variable transmission) and Profi Classic variants within the same power class, indicating the AdBlue system architecture is shared regardless of transmission type.
• The 6145 Profi Classic shares the identical 39.5-liter AdBlue capacity with the 4100-series models, showing no differentiation in SCR tank sizing between the two series at the 145 power level.