Mercedes SLC 300 Final Edition Prem A
Reliability, estimated running costs, and MOT data across 2 model years from 536 MOT tests in 2024.
Avg Pass Rate
93%
Total Tests
536
Highest Pass Rate
2020 (94%)
Years Covered
2
About the Mercedes SLC 300 Final Edition Prem A
The Mercedes SLC 300 Final Edition Prem A was MOT tested 536 times in 2024 (DVSA data, retests included) across 2 model years (2020 to 2021), with an average pass rate of 93%. That's comfortably above the average of 82% across all models in our data. Our records list petrol versions.
Best and Worst Years
Of the years with at least 100 tests, the 2020 model has the highest pass rate at 94% from 434 tests. The 2021 model has the lowest at 92%. With just a 2 point gap, pass rates are similar across these years. Newer cars usually pass more often simply because they are younger.
Mileage Across Years
The oldest model in our data (2020) averages 18,039 miles, while the newest (2021) averages 14,072 miles.
Compared to the Mercedes brand average of 87%, the SLC 300 Final Edition Prem A performs 6 points better, making it one of the more reliable options in the Mercedes range.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2021 detailsHow reliable is the Mercedes SLC 300 Final Edition Prem A?
Mercedes SLC 300 Final Edition Prem A by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the Mercedes SLC 300 Final Edition Prem A
Is the Mercedes SLC 300 Final Edition Prem A reliable?
Across its 2 model years in our data (2020 to 2021), the Mercedes SLC 300 Final Edition Prem A averages a 93% MOT pass rate, from 536 tests (DVSA MOT data for tests in 2024, retests included). That's 11 points above the average of 82% across all models in the same data. The 2020 model has the highest pass rate of the years with at least 100 tests, at 94%.
Which year Mercedes SLC 300 Final Edition Prem A has the best MOT pass rate?
Of the years with at least 100 tests, the 2020 Mercedes SLC 300 Final Edition Prem A has the highest MOT pass rate at 94%, while the 2021 model has the lowest at 92%, a 2 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
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