Mercedes-Benz Sprinter, 906 (USA / CAN)

Additional Notes

• The Mercedes-Benz Sprinter 2500/3500 906 equipped with the OM642 engine carries an AdBlue (DEF) tank capacity listed as a range of 12-22 liters for the 2010-2015 model years, reflecting variability across body configurations or tank options within that production period.
• Starting with the 2015-2016 OM642-equipped Sprinter 2500/3500, the AdBlue capacity specification narrows to a fixed 18 liters, replacing the earlier 12-22 liter range and indicating a standardized tank size across that configuration.
• The OM651-engined Sprinter 2500/3500, introduced in the 906 platform for the 2014-2016 period, also carries an 18-liter AdBlue capacity, aligning with the fixed-capacity specification seen in the later OM642 variants rather than the earlier variable range.
• All six configurations across both engine families are designated for normal use conditions, meaning the capacity figures apply to standard operating environments rather than severe-duty or extended-service scenarios.
• AdBlue, also known as Diesel Exhaust Fluid (DEF), is a urea-water solution consumed by the selective catalytic reduction (SCR) system to reduce nitrogen oxide (NOx) emissions. Tank capacity directly affects how frequently refilling is required between service intervals.
• The SCR system notation appears consistently across all listed rows for both the OM642 and OM651 engines, indicating that both diesel engine families in the 906-series Sprinter rely on the same emissions control technology for the US and Canadian markets.
• The OM651 engine variant enters the specification record at 2014, while the OM642 variant spans from 2010 onward, meaning there is a period of overlap between 2014 and 2018 where both engine families were in use within the same 906-platform Sprinter lineup.