Used car guide
2020 Mercedes-Benz CLS: petrol or diesel?
Petrol, diesel and hybrid versions go wrong in different ways, so each has its own figures from the MOTs these cars had during 2023–2025. Pick the one you’re looking at: the fuel is on the logbook and in the car’s MOT history.
Diesel
78% pass first time (all 2020 cars: 87%)
Stands out: wheels 19.3×, ball joint 11×
707 MOTsSee the diesel guide ›
Hybrid
84% pass first time (all 2020 cars: 87%)
Nothing stands out above the usual rate
143 MOTsSee the hybrid guide ›
Petrol versions had too few MOTs for figures of their own, or weren’t sold.
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Other years
Every year of the Mercedes-Benz CLS compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2023 | – | Too new for MOT data |
| 2022 | – | Too few tests |
| 2021 | 104 | Tyres 21% |
| 2019 | 3,235 | Tyres 25% |
| 2018 | 2,895 | Tyres 26% |
| 2017 | 4,487 | Tyres 31% |
| 2016 | 6,312 | Tyres 31% |
| 2015 | 8,678 | Tyres 30% |
| 2014 | 5,369 | Brakes 35% |
| 2013 | 9,199 | Brakes 38% |
| 2012 | 3,346 | Brakes 34% |
| 2011 | 3,528 | Brakes 34% |
| 2010 | 3,201 | Brakes 37% |
| 2009 | 3,285 | Brakes 38% |
| 2008 | 4,060 | Brakes 38% |
| 2007 | 5,119 | Brakes 41% |
| 2006 | 4,213 | Brakes 40% |
| 2005 | 2,811 | Brakes 35% |