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Cars › Mercedes-Benz › S Class › 2021
2021 Mercedes-Benz S Class fuel consumption
4 versions rated. Official figures from the Australian Government’s Green Vehicle Guide.
Fuel use, combined
8.6–13.6 L/100km
lower is better
Cost to run a year
$2,420–$3,979
at 14,000km
CO₂ from the exhaust
196–312 g/km
per kilometre
Uses 9% more fuel than the typical 2021 car, which averaged 7.9 L/100km.
Every 2021 Mercedes-Benz S Class version
| Version | Engine | Fuel use | City | Highway | Cost/year | CO₂ |
|---|---|---|---|---|---|---|
| S450 4MATIC Sedan Auto | 3L 6cyl Turbo Petrol 95RON | 8.6 | 11.5 | 6.8 | $2,420 | 196 Slightly worse than average |
| S450L 4MATIC Sedan Auto | 3L 6cyl Turbo Petrol 95RON | 8.7 | 11.7 | 6.9 | $2,448 | 199 Slightly worse than average |
| S580 4MATIC Sedan Auto | 4L 8cyl Turbo Petrol 98RON | 10.8 | 15.5 | 8.0 | $3,160 | 246 Worse than average |
| S680 Maybach Sedan Auto | 6L 12cyl Turbo Petrol 98RON | 13.6 | 20.3 | 9.8 | $3,979 | 312 Worse than average |
Mercedes-Benz S Class in other years
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Figures come from a standardised laboratory test, so every car is measured the same way. Your own fuel use will differ with traffic, load, tyre pressure and how you drive. Running costs assume 14,000km a year at recent average fuel prices.