Mercedes CLA 180 AMG Line Auto
Reliability, estimated running costs, and MOT data across 3 model years from 536 MOT tests in 2024.
Avg Pass Rate
91%
Total Tests
536
Highest Pass Rate
2021 (94%)
Years Covered
3
About the Mercedes CLA 180 AMG Line Auto
The Mercedes CLA 180 AMG Line Auto was MOT tested 536 times in 2024 (DVSA data, retests included) across 3 model years (2019 to 2021), with an average pass rate of 91%. 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 2021 model has the highest pass rate at 94% from 187 tests. The 2020 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 (2019) averages 48,910 miles, while the newest (2021) averages 27,680 miles.
Compared to the Mercedes brand average of 87%, the CLA 180 AMG Line Auto performs 4 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 CLA 180 AMG Line Auto?
Mercedes CLA 180 AMG Line Auto by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the Mercedes CLA 180 AMG Line Auto
Is the Mercedes CLA 180 AMG Line Auto reliable?
Across its 3 model years in our data (2019 to 2021), the Mercedes CLA 180 AMG Line Auto averages a 91% MOT pass rate, from 536 tests (DVSA MOT data for tests in 2024, retests included). That's 9 points above the average of 82% across all models in the same data. The 2021 model has the highest pass rate of the years with at least 100 tests, at 94%.
Which year Mercedes CLA 180 AMG Line Auto has the best MOT pass rate?
Of the years with at least 100 tests, the 2021 Mercedes CLA 180 AMG Line Auto has the highest MOT pass rate at 94%, while the 2020 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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