Real MPG: Mercedes-Benz CLS (2018 - 2023)
Incredibly comfortable with superb ride quality, an ideal long distance car., diesel engines are quiet yet powerful.
Tight for rear headroom, 450 petrol engine not as responsive or as quick as the figures would suggest.
Select engine for more Real MPG information:
| Engine | Official MPG (NEDC) | Official MPG (WLTP) | Real MPG Avg. | Real MPG % | |
| AMG CLS 53 | 31.7 mpg | 29.7 mpg | 32.6 mpg | 110%* | |
| CLS 300 d | - | 40.4 mpg | - | -* | |
| CLS 300 d 4Matic | - | 38.2 mpg | - | -* | |
| CLS 350 | 39.8 mpg | 32.1 mpg | 48.1 mpg | 150%* | |
| CLS 350 d 4Matic | 49.6 mpg | - | 57.3 mpg | 115% | |
| CLS 400 d 4Matic | 47.1 mpg | 38.7 mpg | 47.5 mpg | 123%* | |
| CLS 450 4Matic | 35.3 mpg | - | 42.1 mpg | 119% |
Read the Honest John review...
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Mercedes-Benz CLS (2018 - 2023)
Incredibly comfortable with superb ride quality, an ideal long distance car., diesel engines are quiet yet powerful.
Rivals
| Mercedes-Benz CLS (2018 - 2023) | 42.6 | avg mpg |
| Audi A7 Sportback (2018 on) | 38.5 | avg mpg |
| BMW 8 Series (2018 on) | 32.3 | avg mpg |
| Audi Q8 (2018 on) | 36.6 | avg mpg |
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