Maserati Ghibli, M157

AdBlue (DEF) capacity & service interval

Maserati Ghibli and M157 models utilize AdBlue (DEF) with a capacity of 19,6 liters. Service intervals occur every 20000 km 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
Ghibli Diesel (184 kW) (2020-2021)
  • Use: Normal
  • Capacity 19,6 liter
  • Check 20000 km/ 12 months
Ghibli Diesel (202 kW) (2020-2021)
  • Use: Normal
  • Capacity 19,6 liter
  • Check 20000 km/ 12 months
Ghibli Diesel (184 kW) (2018-2019)
  • Use: Normal
  • Capacity 19,6 liter
  • Check 20000 km/ 12 months
Ghibli Diesel (202 kW) (2018-2019)
  • Use: Normal
  • Capacity 19,6 liter
  • Check 20000 km/ 12 months

Additional Notes

  • The Maserati Ghibli M157 diesel variants carry an AdBlue tank capacity of 19.6 liters across all four configurations spanning 2018-2021, which is a relatively large reservoir by passenger car standards and reflects the SCR system's demand for consistent reagent availability over extended driving distances.
  • AdBlue, also known as Diesel Exhaust Fluid, is an aqueous urea solution injected into the exhaust stream upstream of the selective catalytic reduction catalyst, where it converts nitrogen oxides into nitrogen and water vapor to meet emissions regulations.
  • The 19.6-liter capacity applies equally to both the 184 kW and 202 kW diesel engine variants, meaning the two power outputs share an identical AdBlue system volume despite differing in engine tune.
  • A check interval of 20,000 km or 12 months, whichever comes first, is specified under normal use conditions for all four configurations, indicating the interval at which the AdBlue level is to be inspected rather than necessarily refilled.
  • The 2018-2019 and 2020-2021 model year groupings for both the 184 kW and 202 kW variants carry identical capacity and check interval figures, showing no change in AdBlue system specifications across those two production periods.
  • A 20,000 km check interval is consistent with the typical consumption rate of AdBlue in passenger diesel vehicles, where usage generally ranges between 1% and 6% of diesel fuel consumption, meaning a 19.6-liter tank can often cover multiple service intervals before requiring a top-up.

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