Mercedes-Benz Real MPG by model
Real-world fuel economy for 38 Mercedes-Benz models, reported by owners and set against the official figure engine by engine, from 13,090 submissions. Pick a model for the full engine table and to add your own figure.
Other Mercedes-Benz models
Models where too few engines have real-world figures for a page of their own. The data we hold is here rather than lost.
Engines and official figures
- A45 AMG: official 38.7–40.9 mpg, real 27.1 mpg (68%)
Engines and official figures
- 4.0 V8 462: official 30.4 mpg, real 16.5 mpg (54%)
- 4.0 V8 476: official 23.0 mpg
- 4.0 V8 476 Roadster: official 24.8–30.1 mpg
- 4.0 V8 510 S: official 30.1 mpg, real 22.7 mpg (75%)
- 4.0 V8 522: official 24.7 mpg
- 4.0 V8 525 Roadster: official 24.6 mpg
- 4.0 V8 557 C: official 22.6–24.8 mpg
- 4.0 V8 557 C Roadster: official 22.6–24.8 mpg
- 4.0 V8 557 Roadster C: official 24.8 mpg
- 4.0 V8 585 R: official 22.1 mpg
- 4.0 V8 585 R Roadster: official 22.6 mpg
- 6.3 V8: official 21.4 mpg
Engines and official figures
- 4.0 V8 PHEV: official 35.8 mpg
- AMG 63: official 21.4 mpg
- AMG 63 S: official 21.4 mpg
Engines and official figures
- 1.2: official 46.3 mpg, real 44.0 mpg (95%)
- 1.5 CDI: official 56.0–65.7 mpg, real 50.9 mpg (84%)
Engines and official figures
- CL500: official 23.0–29.4 mpg, real 23.1 mpg (88%)
- CL55 AMG: official 21.0 mpg
- CL600: official 21.1 mpg
- CL63 AMG: official 19.5–26.9 mpg, real 15.2 mpg (66%)
- CL65 AMG: official 19.5–19.8 mpg
Engines and official figures
- E 350 d 4Matic Automatic: official 41.5–42.8 mpg, real 34.1 mpg (81%)
Engines and official figures
- V 220 d Marco Polo: official 44.8 mpg
- V 250 d Marco Polo: official 44.1 mpg
Engines and official figures
- SLR Coupe: official 19.5 mpg
- SLR Roadster: official 19.5 mpg
Engines and official figures
- SLS AMG Roadster: official 21.4 mpg
Engines and official figures
- V 220 d: official 37.2 mpg
- V 220 d Extra Long: official 37.2 mpg, real 33.4 mpg (90%*)
- V 220 d Long: official 37.2 mpg
- V 250 d: official 44.8 mpg
- V 250 d Extra Long: official 44.8 mpg, real 35.9 mpg (80%)
- V 300 d: official 36.2 mpg
- V 300 d Extra Long: official 36.2 mpg
- V 300 d Long: official 36.2 mpg
Where the Mercedes-Benz figures come from
Rebuilt from the archived Honest John Real MPG dataset after the site closed in 2026, with the official NEDC and WLTP figures kept alongside the owner-reported averages, plus new submissions from CarAdCheck readers. Each model page links to the archived page it was built from.
CarAdCheck is not affiliated with Honest John or Volkswagen Financial Services. How we rebuilt Real MPG.
Before you go and see it
Whichever Mercedes-Benz you settle on, these are the checks worth doing before you go and look at it.